Obd Diagnostic Error codes list for Ford and Error code meaning for each code:----
Trouble Code: P0018
Crankshaft Position - Camshaft Position Correlation - Bank 2 Sensor A
Possible Causes:
Camshaft timing incorrectly set
VCT solenoid stuck in position
Camshaft advance mechanism binding (VCT unit)
Trouble Code: P0102
MAF Sensor Circuit Low Input
Possible Causes:
Check for leaks at air outlet tube
Sensor power circuit open, sensor ground circuit open
Sensor signal circuit open (may be disconnected)
Check for loose tube clamps near the MAF sensor
Trouble Code: P0103
MAF Sensor Circuit High Input
Possible Causes:
Check for a restricted inlet screen on the MAF sensor.
MAF sensor signal circuit is shorted to system power (B+)
MAF sensor is damaged or the PCM has failed
Trouble Code: P0112
Intake Air Temperature Sensor Circuit Low Input
Possible Causes:
IAT sensor signal circuit is grounded (check wiring & connector)
IAT sensor is damaged or it has failed
PCM has failed
Trouble Code: P0113
Intake Air Temperature Sensor Circuit High Input
Possible Causes:
IAT sensor signal circuit is open (inspect wiring & connector)
IAT sensor signal circuit is shorted to VREF (5v)
IAT sensor is damaged or it has failed
PCM has failed
Trouble Code: P0117
ECT Sensor Circuit Low Input
Possible Causes:
ECT sensor signal circuit is grounded in the wiring harness
ECT sensor is damaged or the PCM has failed
Trouble Code: P0118
ECT Sensor Circuit High Input
Possible Causes:
ECT sensor signal circuit is open (inspect wiring & connector)
ECT sensor signal circuit is shorted to VREF (5v)
ECT sensor is damaged or it has failed
PCM has failed
Trouble Code: P0121
TP Sensor Signal Range/Performance
Possible Causes:
Throttle plate is binding, dirty or sticking
TP sensor signal circuit open (inspect wiring & connector)
TP sensor ground circuit open (inspect wiring & connector)
TP Sensor is damaged or has failed
Trouble Code: P0122
TP Sensor Circuit Low Input
Possible Causes:
TP sensor signal circuit open (inspect wiring & connector)
TP sensor signal shorted to ground (inspect wiring & connector)
TP sensor VREF circuit is open (between the sensor and PCM)
TP sensor is damaged or has failed
PCM has failed
Trouble Code: P0123
TP Sensor Circuit High Input
Possible Causes:
TP sensor not seated correctly in housing (may be damaged)
TP sensor signal is circuit shorted to VREF or system voltage
TP sensor ground circuit is open (check the wiring harness)
Perform a "sensor sweep test" and monitor for any glitches
PCM has failed
Trouble Code: P0125
Insufficient Coolant Temperature For Closed Loop
Possible Causes:
Check the coolant mixture for an incorrect mixture
Check the operation of the thermostat (it may be stuck open)
ECT sensor (or the CHT sensor) has failed
Inspect for low coolant level
Trouble Code: P0126
Insufficient Coolant Temperature For Closed Loop
Possible Causes:
Check the coolant mixture for an incorrect mixture
Check the operation of the thermostat (it may be stuck open)
ECT sensor (or the CHT sensor) has failed
Inspect for low coolant level
Trouble Code: P0131
HO2S-11 (Bank 1 Sensor 1) Circuit High Input
Possible Causes:
HO2S connector pins damaged
Loose circuit connections (including harness connectors)
PCM has failed
Trouble Code: P0132
HO2S-11 (Bank 1 Sensor 1) Circuit High Input
Possible Causes:
HO2S signal shorted to heater power circuit inside connector
HO2S signal circuit shorted to VREF or to system voltage
PCM has failed
Trouble Code: P0133
HO2S-11 Circuit Slow Response (Bank 1, Sensor 1)
Possible Causes:
Contaminated HO2S* Exhaust leaks
Shorted/open wiring
Incorrect fueling
MAF sensor
Deteriorating HO2S
Inlet air leaks
Trouble Code: P0135
HO2S-11 Heater Circuit (Bank 1, Sensor 1)
Possible Causes:
Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications
Short to VPWR in the harness or HO2S
Water in the harness connector
Open VPWR circuit
Open GND circuit
Low battery voltage
Corrosion or incorrect harness connections
Damaged HO2S heater
Trouble Code: P0136
HO2S-12 Circuit Malfunction (Bank 1, Sensor 2)
Possible Causes:
Pinched, shorted, and corroded wiring and pins
Crossed sensor wires
Exhaust leaks
Contaminated or damaged sensor
Trouble Code: P0138
HO2S-11 (Bank 1 Sensor 1) Circuit High Input
Possible Causes:
HO2S signal shorted to heater power circuit inside connector
HO2S signal circuit shorted to VREF or to system voltage
PCM has failed
Trouble Code: P0141
HO2S-11 Heater Circuit (Bank 1, Sensor 1)
Possible Causes:
Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications* Short to VPWR in the harness or HO2S
Water in the harness connector
Open VPWR circuit
Open GND circuit
Low battery voltage
Corrosion or incorrect harness connections
Damaged HO2S heater
Trouble Code: P0152
HO2S-21 (Bank 2 Sensor 1) Circuit High Input
Possible Causes:
* HO2S is contaminated (due to presence of silicone in fuel)
HO2S signal tracking (due to oil or moisture in the connector)
HO2S signal circuit is open or shorted to VREF
PCM has failed
Trouble Code: P0153
HO2S-21 (Bank 2 Sensor 1) Circuit Slow Response
Possible Causes:
HO2S is contaminated (due to presence of silicone in fuel)
Leaks present in the exhaust manifold or exhaust pipes
HO2S is damaged or has failed
PCM has failed
Trouble Code: P0155
HO2S-21 (Bank 2 Sensor 1) Heater Circuit Malfunction
Possible Causes:
HO2S heater power circuit is open
HO2S heater ground circuit is open
HO2S signal tracking (due to oil or moisture in the connector)
HO2S is damaged or has failed
PCM has failed
Trouble Code: P0156
HO2S-22 (Bank 2 Sensor 2) Circuit No Activity
Possible Causes:
Leaks present in the exhaust manifold or exhaust pipes
HO2S signal wire and ground wire crossed in connector
HO2S element is fuel contaminated or has failed
PCM has failed
Trouble Code: P0161
HO2S-22 (Bank 2 Sensor 2) Heater Circuit Malfunction
Possible Causes:
HO2S heater power circuit or the heater ground circuit is open
HO2S signal tracking (due to oil or moisture in the connector)
HO2S has failed, or the PCM has failed
Trouble Code: P0171
Fuel System Too Lean (Cylinder Bank 1)
Possible Causes:
Air leaks after the MAF sensor, or leaks in the PCV system
Exhaust leaks before or near where the HO2S is mounted
Fuel injector(s) restricted or not supplying enough fuel
Fuel pump not supplying enough fuel during high fuel demand conditions
Leaking EGR gasket, or leaking EGR valve diaphragm
MAF sensor dirty (causes PCM to underestimate airflow)
Vehicle running out of fuel or engine oil dip stick not seated
Trouble Code: P0172
Fuel System Too Rich (Cylinder Bank 1)
Possible Causes:
Camshaft timing is incorrect, or the engine has an oil overfill condition
EVAP vapor recovery system failure (may be pulling vacuum)
Fuel pressure regulator is damaged or leaking
HO2S element is contaminated with alcohol or water
MAF or MAP sensor values are incorrect or out-of-range
One of more fuel injectors is leaking
Trouble Code: P0174
Fuel System Too Lean (Cylinder Bank 2)
Possible Causes:
Air leaks after the MAF sensor, or leaks in the PCV system
Exhaust leaks before or near where the HO2S is mounted
Fuel injector(s) restricted or not supplying enough fuel
Fuel system not supplying enough fuel during high fuel demand conditions (e.g., the fuel pump may not supply enough fuel)
Leaking EGR gasket, or leaking EGR valve diaphragm
MAF sensor dirty (causes PCM to underestimate airflow)
Vehicle running out of fuel or engine oil dip stick not seated
Trouble Code: P0175
Fuel System Too Rich (Cylinder Bank 2)
Possible Causes:
Camshaft timing is incorrect
Engine oil overfill condition
EVAP vapor recovery system failure (may be pulling vacuum)
Fuel pressure regulator is damaged or leaking
HO2S element is contaminated with alcohol or water
MAF or MAP sensor values are incorrect or out-of-range
One of more fuel injectors is leaking
Trouble Code: P0230
Fuel Pump Primary Circuit Malfunction
Possible Causes:
FP or FSV circuit is open or shorted
Fuel pump relay VPWR circuit open
Fuel pump relay is damaged or has failed
PCM has failed
Trouble Code: P0231
Fuel Pump Primary Circuit Low Input
Possible Causes:
FP or FSV circuit is open or shorted to ground
Fuel pump relay VPWR circuit open or fuel pump relay failed
PCM has failed
Trouble Code: P0232
Fuel Pump Secondary Circuit High Input
Possible Causes:
Fuel pump relay contacts always closed
Fuel pump ground circuit has high resistance
Fuel pump secondary circuit is shorted to power
Low speed fuel pump relay damaged or related circuit problem
Trouble Code: P0300
Random Misfire Detected
Possible Causes:
Base engine mechanical fault that affects two or more cylinders
Fuel metering fault that affects two or more cylinders
Fuel pressure too low or too high, fuel supply contaminated
EVAP system problem or the EVAP canister is fuel saturated
EGR valve is stuck open or the PCV system has a vacuum leak
Ignition system fault (coil, plug) affecting two or more cylinders
MAF sensor contamination (it can cause a very lean condition)
Vehicle driven while very low on fuel (less than 1/8 of a tank)
Trouble Code: P0301
Cylinder Number 1 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 1
Fuel delivery component problem that affects only Cylinder 1 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 1
Trouble Code: P0302
Cylinder Number 2 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 2
Fuel delivery component problem that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 2
Trouble Code: P0303
Cylinder Number 3 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 3
Fuel delivery component problem that affects only Cylinder 3 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 3
Trouble Code: P0304
Cylinder Number 4 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 4
Fuel delivery component problem that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 4
Trouble Code: P0305
Cylinder Number 5 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 5
Fuel delivery component problem that affects only Cylinder 5 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 5
Trouble Code: P0306
Cylinder Number 6 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 6
Fuel delivery component problem that affects only Cylinder 6 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 6
Trouble Code: P0307
Cylinder Number 7 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 7
Fuel delivery component problem that affects only Cylinder 7 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 7
Trouble Code: P0308
Cylinder Number 8 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 8
Fuel delivery component problem that affects only Cylinder 8 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 8.
Trouble Code: P0325
Knock Sensor 1 Circuit Malfunction
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0326
Knock Sensor 1 Signal Range/Performance
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0330
Knock Sensor 2 Circuit Malfunction
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0331
Knock Sensor 2 Signal Range/Performance
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0340
Camshaft Position Sensor Circuit Malfunction
Possible Causes:
CMP circuit open
CMP circuit short to GND
CMP circuit short to voltage
SIG RTN open (VR sensor)
CMP GND open (Hall-effect sensor)
CMP circuit short to CMP2 circuit (if equipped)
CMP incorrectly installed (Hall-effect sensor)
Damaged CMP sensor shielding
Damaged CMP sensor
Damaged PCM
Trouble Code: P0350
Ignition Coil (Undetermined) Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver circuit is open or shorted to ground
Ignition coil circuit is shorted to power
Ignition coil damaged or it has failed
PCM has failed
Trouble Code: P0351
Ignition Coil 1 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 1 circuit open, shorted to ground or to power
Ignition coil 1 is damaged or it has failed
PCM has failed
Trouble Code: P0352
Ignition Coil 2 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 2 circuit open, shorted to ground or to power
Ignition coil 2 is damaged or it has failed
PCM has failed
Trouble Code: P0353
Ignition Coil 3 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 3 circuit open, shorted to ground or to power
Ignition coil 3 is damaged or it has failed
PCM has failed
Trouble Code: P0354
Ignition Coil 4 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 4 circuit open, shorted to ground or to power
Ignition coil 4 is damaged or it has failed
PCM has failed
Trouble Code: P0400
Exhaust Gas Recirculation (EGR) Flow
Possible Causes:
EEGR valve stuck open or closed
Connector to EEGR not seated
EEGR motor winding circuits short or open
No voltage to the EEGR
Harness open or shorted to voltage or ground
Vacuum signal to manifold absolute pressure (MAP) restricted or leaking
Mass air flow (MAF) sensor signal erroneous
Carbon build up in the EEGR valve seat area
One or more sensors is not responding or is out of range
Trouble Code: P0401
Insufficient EGR Flow Detected
Possible Causes:
DPFE sensor signal circuit is shorted to ground
DPFE sensor VREF circuit is open between sensor and PCM
DPFE sensor downstream hose off or plugged
DPFE sensor hoses both off, loose or damaged
DPFE sensor hoses connected wrong (reversed)
EGR orifice tube is damaged or restricted
Trouble Code: P0402
Excessive EGR Flow Detected
Possible Causes:
DPFE EGR valve source hoses loose or connected wrong
DPFE sensor slow to respond or sluggish (it may have failed)
DPFE sensor signal circuit is open or shorted to ground
DPFE EGR sensor is damaged or the PCM has failed
Trouble Code: P0410
Secondary Air Injection (AIR) System
Possible Causes:
AIR inlet hose leak
AIR inlet hose disconnected
Trouble Code: P0411
Secondary AIR System Incorrect Upstream Flow Detected
Possible Causes:
Air pump output is blocked
AIR bypass solenoid leaking or blocked
AIR bypass solenoid is stuck open or stuck closed
Air injection pump hose(s) leaking
PCM has failed
Trouble Code: P0412
Secondary Air Injection Solenoid Circuit Malfunction
Possible Causes:
AIR solenoid power circuit (B+) is open (check dedicated fuse)
AIR bypass solenoid control circuit is open or shorted to ground
AIR diverter solenoid control circuit open or shorted to ground
AIR pump control circuit is open or shorted to ground
Check valve (one or more) is damaged or leaking
Solid State relay is damaged or it has failed
PCM has failed
Trouble Code: P0420
Catalyst System Efficiency Bank 1 Below Threshold
Possible Causes:
Air leaks at the exhaust manifold or in the exhaust pipes
Catalytic converter is damaged, contaminated or it has failed
ECT/CHT sensor has lost its calibration (the signal is incorrect)
Engine cylinders misfiring, or the ignition timing is over retarded
Engine oil is contaminated
Front HO2S or rear HO2S is contaminated with fuel or moisture
Front HO2S and/or the rear HO2S is loose in the mounting hole
Front HO2S much older than the rear HO2S (HO2S-11 is lazy)
Fuel system pressure is too high (check the pressure regulator)
Rear HO2S wires improperly connected or the HO2S has failed
Trouble Code: P0430
Catalyst System Efficiency Bank 2 Below Threshold
Possible Causes:
Air leaks at the exhaust manifold or in the exhaust pipes
Catalytic converter is damaged, contaminated or it has failed
ECT/CHT sensor has lost its calibration (the signal is incorrect)
Engine cylinders misfiring, or the ignition timing is over retarded
Engine oil is contaminated
Front HO2S or rear HO2S is contaminated with fuel or moisture
Front HO2S and/or the rear HO2S is loose in the mounting hole
Front HO2S much older than the rear HO2S (HO2S-11 is lazy)
Fuel system pressure is too high (check the pressure regulator)
Rear HO2S wires improperly connected or the HO2S has failed
Trouble Code: P0500
Vehicle Speed Sensor Malfunction
Possible Causes:
Modules connected to VSC/VSS harness circuits are damaged
Mechanical drive mechanism for the VSS or TCSS is damaged
VSS+ or VSS- harness circuit is open
TCSS signal or TCSS signal return harness circuit is open
VSS harness circuit, TCSS harness circuit is shorted to ground
VSS harness circuit, CSS harness circuit is shorted to power
VSS circuit open between the PCM and related control module
VSS or TCSS, or wheel speed sensors circuits are damaged
Trouble Code: P0505
Idle Air Control System Malfunction
Possible Causes:
Air inlet dirty, restricted or the air cleaner is severely restricted
IAC solenoid control circuit is open, shorted to ground or to B+
IAC solenoid power circuit (VPWR) is open from the relay
IAC valve is damaged or has failed
PCM has failed
TSB 03-3-5 contains repair information for this trouble code
Trouble Code: P0552
Power Steering Pressure (PSP) Sensor
Possible Causes:
PSP sensor damaged
SIG RTN circuit open or shorted
VREF circuit open or shorted
PSP sensor signal circuit open or shorted
PCM has failed
Trouble Code: P0553
Power Steering Pressure (PSP) Sensor
Possible Causes:
PSP sensor damaged
SIG RTN circuit open or shorted
VREF circuit open or shorted
PSP sensor signal circuit open or shorted
PCM has failed
Trouble Code: P0603
PCM Keep Alive Memory Test Error
Possible Causes:
Battery terminal corrosion, or loose battery connection
KAPWR to PCM interrupted, or the circuit has been opened
Reprogramming error has occurred
PCM has failed and needs replacement. Remember to check for Aftermarket Performance Products before replacing a PCM.
Trouble Code: P0604
Internal Control Module Random Access Memory (RAM) Error
Possible Causes:
Module reprogramming
Aftermarket performance products
Damaged PCM
Trouble Code: P0605
PCM Read Only Memory Test Error
Possible Causes:
An attempt was made to change the module calibration, or a Module programming error may have occurred
Clear the trouble codes and then check for this trouble code. If it resets, the PCM has failed and needs replacement.
Remember to check for signs of Aftermarket Performance Products installation before replacing the PCM.
Trouble Code: P0607
Control Module Performance
Possible Causes:
Module programming error
Aftermarket performance products
Damaged PCM
Trouble Code: P0657
Actuator Supply Voltage A Circuit/Open
Possible Causes:
n/aagnostic Troubleshooting:
Refer to the mechanical section covering automatic transmissions.
Trouble Code: P0703
Brake Switch Circuit Malfunction
Possible Causes:
BPP switch circuit is open
BPP switch is damaged or it is out of adjustment
BPP switch power circuit is open (check the switch inline fuse)
Trouble Code: P0705
DTR Sensor / TR Sensor Circuit Malfunction
Possible Causes:
DTR or TR sensor connector is damaged or shorted
DTR or TR sensor signal circuit is open or shorted to ground
DTR or TR sensor signal circuit is shorted to VREF (5v)
DTR or TR sensor damaged
PCM has failed
Trouble Code: P0707
DTR Sensor / TR Sensor Circuit Low Input
Possible Causes:
DTR or TR sensor connector is damaged or it is shorted
DTR or TR sensor signal circuit is shorted to sensor ground
DTR or TR sensor damaged
PCM has failed
Trouble Code: P0708
DTR Sensor or TR Sensor Circuit High Input
Possible Causes:
DTR or TR sensor connector is damaged or open
DTR or TR sensor signal circuit is open
DTR or TR sensor is shorted to VREF (5v)
DTR or TR sensor is damaged or the PCM has failed
Trouble Code: P0711
TFT Sensor Signal Range/Performance
Possible Causes:
ATF is low, contaminated, dirty or burnt
TFT sensor signal circuit has a high resistance condition
TFT sensor is out-of-calibration ("skewed") or it has failed
PCM has failed
Trouble Code: P0731
Incorrect First Gear Ratio
Possible Causes:
1st Gear solenoid harness connector not properly seated
1st Gear solenoid signal shorted to ground, or open
1st Gear solenoid wiring harness connector is damaged
1st Gear solenoid is damaged or not properly installed
TSB 02-2-4 contains a repair procedure for this trouble code
Trouble Code: P0732
Incorrect Second Gear Ratio
Possible Cause:
2nd Gear solenoid harness connector not properly seated
2nd Gear solenoid signal shorted to ground, or open
2nd Gear solenoid wring harness connector is damaged
2nd Gear solenoid is damaged or not properly installed
Trouble Code: P0733
Incorrect Third Gear Ratio
Possible Causes:
3rd Gear solenoid harness connector not properly seated
3rd Gear solenoid signal shorted to ground, or open
3rd Gear solenoid wiring harness connector is damaged
3rd Gear solenoid is damaged or not properly installed
Trouble Code: P0734
Incorrect Fourth Gear Ratio
Possible Causes:
4th Gear solenoid harness connector not properly seated
4th Gear solenoid signal shorted to ground, or open
4th Gear solenoid wiring harness connector is damaged
4th Gear solenoid is damaged or not properly installed
Trouble Code: P0736
Incorrect Reverse Gear Ratio
Possible Causes:
Reverse Gear solenoid harness connector not properly seated
Reverse Gear solenoid signal shorted to ground, or open
Reverse Gear solenoid wiring harness connector is damaged
Reverse Gear solenoid is damaged or not properly installed
Trouble Code: P0743
TCC Solenoid Circuit Malfunction
Possible Causes:
TCC solenoid control circuit is open
TCC solenoid control circuit is shorted to ground
TCC solenoid wiring harness connector is damaged
TCC solenoid is damaged or it has failed
PCM has failed
Trouble Code: P0746
A/T EPC Solenoid Circuit Malfunction
Possible Causes:
EPC solenoid control circuit is open
EPC solenoid control circuit is shorted to ground
EPC solenoid wiring harness connector is damaged
EPC solenoid is damaged or it has failed
PCM has failed
Trouble Code: P0750
A/T Shift Solenoid 1/A Circuit Malfunction
Possible Causes:
SS1/A solenoid control circuit is open
SS1/A solenoid control circuit is shorted to ground
SS1/A solenoid wiring harness connector is damaged
SS1/A solenoid is damaged or has failed
PCM has failed.
Trouble Code: P0751
A/T Shift Solenoid 1/A Function Range/Performance
Possible Causes:
SS1/A solenoid is stuck in the "off" position
SS1/A solenoid has a mechanical failure
SS1/A solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0752
A/T Shift Solenoid 1/A Function Range/Performance
Possible Causes:
SS1/A solenoid is stuck in the "on" position
SS1/A solenoid has a mechanical failure
SS1/A solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0753
A/T Shift Solenoid 1/A Circuit Malfunction
Possible Causes:
SS1/A solenoid control circuit is open
SS1/A solenoid control circuit is shorted to ground
SS1/A solenoid wiring harness connector is damaged
SS1/A solenoid is damaged or has failed
PCM has failed
Trouble Code: P0755
A/T Shift Solenoid 2/B Circuit Malfunction
Possible Causes:
SS2/B solenoid control circuit is open
SS2/B solenoid control circuit is shorted to ground
SS2/B solenoid wiring harness connector is damaged
SS2/B solenoid is damaged or has failed
PCM has failed
Trouble Code: P0756
A/T Shift Solenoid 2/B Function Range/Performance
Possible Causes:
SS2/B solenoid is stuck in the "on" position
SS2/B solenoid has a mechanical failure
SS2/B solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0757
A/T Shift Solenoid 2/B Function Range/Performance
Possible Causes:
SS2/B solenoid is stuck in the "on" position
SS2/B solenoid has a mechanical failure
SS2/B solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0758
A/T Shift Solenoid 2/B Circuit Malfunction
Possible Causes:
Shift Solenoid 2/B connector is damaged, open or shorted
Shift Solenoid 2/B control circuit is open
Shift Solenoid 2/B control circuit is shorted to ground
Shift Solenoid 2/B is damaged or it has failed
PCM has failed
Trouble Code: P0760
A/T Shift Solenoid 3/C Circuit Malfunction
Possible Causes:
Shift Solenoid 3/C connector is damaged, open or shorted
Shift Solenoid 3/C control circuit is open
Shift Solenoid 3/C control circuit is shorted to ground
Shift Solenoid 3/C is damaged or it has failed
PCM has failed
Trouble Code: P0761
A/T Shift Solenoid 3/C Function Range/Performance
Possible Causes:
SS3/C solenoid may be stuck -off-
SS3/C solenoid has a mechanical failure
SS3/C solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0762
A/T Shift Solenoid 3/C Function Range/Performance
Possible Causes:
SS3/C solenoid may be stuck -on-
SS3/C solenoid has a mechanical failure
SS3/C solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0781
A/T 1 to 2 Shift Error
Possible Causes:
SS1/A solenoid may be stuck
SS1/A solenoid has a hydraulic problem
SS2/B solenoid may be stuck
SS2/B has a hydraulic problem
Transmission may have damaged friction material
Transmission has internal damage and needs replacement
Trouble Code: P0782
A/T 2 to 3 Shift Error
Possible Causes:
SS1/A solenoid may be stuck
SS1/A solenoid has a hydraulic problem
SS2/B solenoid may be stuck
SS2/B has a hydraulic problem
Transmission may have damaged friction material
Transmission has internal damage and needs replacement
Trouble Code: P0783
A/T 3 to 4 Shift Error
Possible Causes:
SS1/A solenoid may be stuck, or a hydraulic failure exists
SS2/B solenoid may be stuck, or a hydraulic failure exists
Transmission may have damaged friction material
Trouble Code: P0784
A/T 4 to 5 Shift Error
Possible Causes:
SS2/B solenoid may be stuck, or a hydraulic failure exists
SS3/C solenoid may be stuck, or a hydraulic failure exists
Transmission may have damaged friction material
Trouble Code: P0815
Transmission Control System Malfunction
Possible Causes:
Refer to the information in the Transmission Section of the appropriate Workshop Repair manual (i.e., the information for the particular vehicle that set this trouble code).
Trouble Code: P0830
Clutch Pedal Switch A Circuit
Possible Causes:
Damaged CPP-BT switch
Damaged CPP-BT harness
Open PWRGND circuit to the CPP-BT switch
Vehicle push-started with the clutch engaged (clutch pedal released)
Aftermarket remote starting device
Trouble Code: P0833
Clutch Pedal Switch B Circuit
Possible Causes:
Damaged CPP-TT switch
Damaged CPP-TT harness
Open PWRGND circuit to the CPP-TT switch
Vehicle push-started with the clutch engaged (clutch pedal released)
Aftermarket remote starting device
Trouble Code: P1000
OBD II Monitor Testing Not Complete
Possible Causes:
Battery keep alive power (KAPWR) was removed to the PCM
One or more OBD II Monitors did not complete during an official OBD II Drive Cycle
PCM Reset step was performed with an OBD II Scan Tool
Trouble Code: P1001
KOER Self-Test Not Completed, KOER Test Aborted
Possible Causes:
Engine speed (RPM) out of specification during the KOER test
Incorrect Self-Test Procedure
Scan Tool has a communication problem
Unexpected response from Self-Test monitors
Trouble Code: P1101
Mass Air Flow (MAF) Sensor Out of Self-Test Range
Possible Causes:
Low battery charge
MAF sensor partially connected
MAF sensor contamination
PWR GND open to the MAF sensor
MAF RTN circuit open to PCM
Damaged MAF sensor
Trouble Code: P1112
IAT Sensor Circuit Intermittent
Possible Causes:
IAT sensor wiring harness is damaged (wire may be open)
IAT sensor harness connector is damaged
IAT sensor is damaged or the PCM has failed
Trouble Code: P1116
CHT or ECT Sensor Out Of Self-Test Range
Possible Causes:
ECT sensor harness connector is damaged, loose or shorted
ECT sensor is damaged
KOER or KOER Self-Test performed with the engine "too cold"
Trouble Code: P1117
CHT or ECT Sensor Signal Intermittent
Possible Causes:
ECT sensor harness connector is damaged, loose or shorted
ECT sensor is damaged or it has failed
Engine overheating condition present
Thermostat is faulty, or engine coolant level is low
Trouble Code: P1120
TP Sensor Signal Out-of-Range Low
Possible Causes:
ECT sensor harness connector is damaged
ECT sensor is damaged
Engine coolant level is low
PCM has failed
Trouble Code: P1121
TP Sensor Inconsistent With MAF Sensor
Possible Causes:
Air leak exists between MAF sensor and the throttle body
MAF sensor is damaged or it has failed
TP sensor is not seated properly
TP sensor is damaged
Trouble Code: P1124
TP Sensor Out of Self-Test Range
Possible Causes:
Throttle linkage is binding, or TP sensor is not seated properly
Throttle plate below closed throttle position
Throttle plate screw is misadjusted
TP sensor is damaged or it has failed
PCM has failed
Trouble Code: P1125
TP Sensor Circuit Malfunction (Intermittent)
Possible Causes:
TP sensor wiring harness or connector has an intermittent open
TP sensor has an intermittent open or shorted condition
Trouble Code: P1130
Lack of HO2S-11 Switching, Fuel Trim at Rich/Lean Limit
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
EGR valve sticking, EGR diaphragm leaking, or gasket leaking
EVAP vapor recovery system has failed
Excessive fuel pressure, leaking or contaminated fuel injectors
Exhaust leaks before or near the HO2S(s) mounting location
Fuel pressure regulator is leaking or damaged
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S is damaged or it has failed
HO2S signal circuit open, shorted to ground, shorted to power
Low fuel pressure or vehicle driven until it was out of fuel
Oil dipstick not seated or engine oil level too high (overfilled)
Trouble Code: P1131
Lack of HO2S-11 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S signal circuit open, shorted to ground, shorted to power, or the sensor has failed
Low fuel pressure or vehicle driven until it was out of fuel
Possible air leaks at the PCV valve or at the related hoses
Trouble Code: P1132
Lack of HO2S-11 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1137
Lack of HO2S-12 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S is damaged or it has failed
HO2S signal circuit open, shorted to ground, shorted to power
Low fuel pressure or vehicle driven until it was out of fuel
Possible air leaks at the PCV valve or at the related hoses
Trouble Code: P1138
Lack of HO2S-12 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1150
Lack of HO2S-21 Switching, Fuel Trim At Rich/Lean Limit
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
EGR valve sticking, EGR diaphragm leaking, or gasket leaking
EVAP vapor recovery system has failed
Excessive fuel pressure, leaking or contaminated fuel injectors
Exhaust leaks before or near the HO2S(s) mounting location
Fuel pressure regulator is leaking or damaged
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S signal circuit open, shorted to ground, shorted to power, or the sensor has failed
Low fuel pressure or vehicle driven until it was out of fuel
Oil dipstick not seated or engine oil level too high (overfilled)
Trouble Code: P115E
Throttle Actuator Control (TAC) Throttle Body Air Flow Trim at Max Limit
Possible Causes:
Sludge around the throttle plate
Trouble Code: P1151
Lack of HO2S-21 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location or in the PCV system
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S signal circuit open, shorted to ground, shorted to power, or the sensor has failed
Low fuel pressure or vehicle driven until it was out of fuel
Trouble Code: P1152
Lack of HO2S-21 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1157
Lack of HO2S-22 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S is damaged or it has failed
HO2S signal circuit open, shorted to ground, shorted to power
Low fuel pressure or vehicle driven until it was out of fuel
Possible air leaks at the PCV valve or at the related hoses
Trouble Code: P1158
Lack of HO2S-22 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1233
Fuel System Disabled Or Offline
Possible Causes:
Inertia fuel shutoff (IFS) switch needs to be reset
FPDM ground circuit is open, or FPM circuit is open or shorted
Mark VIII: FPDM PWR circuit is open, the FPDM power supply relay VPWR circuit is opened or grounded, or power relay failed
Escort/Tracer: FPDM PWR circuit is open, or the CCRM pin 11 is open to power (B+), or the CCRM (relay) is damaged
Continental: FPDM circuit to VPWR is open, or the FPDM or the IFS is damaged
Refer to the GEM or REM controllers for related trouble codes
Trouble Code: P1234
Fuel System Disabled Or Offline
Possible Causes:
Inertia fuel shutoff (IFS) switch needs to be reset or has failed
FPDM ground circuit is open, or FPM circuit is open or shorted
Mark VIII: FPDM PWR circuit is open, the FPDM power supply relay VPWR circuit is opened or grounded, or power relay failed
Escort/Tracer: FPDM PWR circuit is open, or the CCRM pin 11 is open to power (B+), or the CCRM (relay) is damaged
Continental: FPDM circuit to VPWR is open, or the FPDM or the IFS is damaged
LS6, LS8 Models: This code indicates the PCM is not receiving data about the fuel level on the SCP data line from the Rear Electronics Module (REM). Test the REM first!
PCM has failed
Trouble Code: P1235
Fuel Pump Control Out Of Range
Possible Causes:
FP circuit is open or shorted
FPDM is damaged
PCM has failed
Trouble Code: P1236
Fuel Pump Control Out Of Range
Possible Causes:
FP circuit is open or it is shorted
FPDM is damaged or the PCM has failed
Trouble Code: P1237
Fuel Pump Secondary Circuit Malfunction
Possible Causes:
FP PWR circuit is open or shorted
FPDM fuel pump return circuit is open
Fuel pump windings are open or shorted, or the rotor is locked
FPDM is damaged
Trouble Code: P1238
Fuel Pump Secondary Circuit Malfunction
Possible Causes:
FP PWR circuit is open or shorted
FPDM fuel pump return circuit is open
Fuel pump windings are open or shorted
Fuel pump rotor is locked
FPDM is damaged
Trouble Code: P1270
Engine Speed/Vehicle Speed Limiter Fault
Possible Causes:
Excessive wheel slippage due to water, ice, mud and snow
Excessive engine speed (rpm) with the gearshift in Neutral
Vehicle driven at a high rate of speed
Trouble Code: P1288
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Engine overheating
Low coolant level* Damaged harness connector
Damaged CHT sensor
Trouble Code: P1289
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Grounded circuit in harness
Open in harness* Improper harness connections
Damaged CHT sensor
Damaged PCM
Trouble Code: P1290
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Grounded circuit in harness
Open in harness* Improper harness connections
Damaged CHT sensor
Damaged PCM
Trouble Code: P1299
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Cooling system problems
Base engine problems* Low coolant or loss of coolant
Trouble Code: P1352
Ignition Coil 2 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 2 circuit open, shorted to ground or to power
Ignition coil 2 is damaged or it has failed
PCM has failed
Trouble Code: P1353
Ignition Coil 3 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 3 circuit open, shorted to ground or to power
Ignition coil 3 is damaged or it has failed
PCM has failed
Trouble Code: P1354
Ignition Coil 4 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 4 circuit open, shorted to ground or to power
Ignition coil 4 is damaged or it has failed
PCM has failed
Trouble Code: P1383
Variable Cam Timing Over-Retarded (Cylinder Bank 1)
Possible Causes:
Cam timing improperly set
Low oil pressure, VCT piston chamber not receiving any oil flow
VCT solenoid valve stuck in closed position
Camshaft advance mechanism binding (inside the VCT unit)
Trouble Code: P1400
DPFE Sensor Circuit Low Input
Possible Causes:
DPF EGR signal circuit shorted to ground
DPF EGR signal VREF circuit open
DPF EGR sensor is damaged or has failed
PCM has failed
TSB 4-3-1 contains repair information for this trouble code
Trouble Code: P1401
DPFE Sensor Circuit High Input
Possible Causes:
DPF EGR signal circuit open, or sensor ground circuit open
DPF EGR signal shorted to VREF or to power
DPF EGR sensor is damaged or has failed
PCM has failed
TSB 4-3-1 contains repair information for this trouble code
Trouble Code: P1406
DPFE Sensor Downstream Hose Off Or Plugged
Possible Causes:
Check for signs of icing in the hose, or for a restricted tube
DPF EGR sensor downstream hose is disconnected
DPF EGR sensor downstream hose is plugged (ice)
EGR tube is plugged or damaged
Trouble Code: P1408
EGR Flow Out Of Self-Test Range
Possible Causes:
EGR vacuum regulator solenoid vacuum supply problem
EVR valve stuck closed or iced up, or the flow path is restricted
EGR valve diaphragm leaking, hose is off, plugged or leaking
EGR VR solenoid open or the VPWR circuit is open
DPF EGR sensor pressure hoses connected wrong (reversed)
DPF EGR downstream hose connection leaking or plugged
EGR Orifice tube assembly is damaged
DPF EGR sensor or the EGR VR solenoid is damaged, or the PCM has failed
Trouble Code: P1409
EGR Vacuum Regulator Solenoid Circuit Malfunction
Possible Causes:
EGR VR solenoid circuit is open, or shorted to ground
EGR VR circuit is shorted to power or the VPWR circuit is open
EGR vacuum regulator solenoid is damaged or the PCM has failed
Trouble Code: P1413
Secondary AIR System Monitor Circuit Low Input
Possible Causes:
AIR solenoid control circuit is open or it is shorted to ground
AIR pump is damaged or it has failed
Solid State relay is damaged or it has failed
Solid State relay battery power circuit (B+) is open
PCM has failed
Trouble Code: P1414
Secondary AIR System Monitor Circuit High Input
Possible Causes:
AIR Monitor circuit from the pump to the PCM is open
AIR solenoid control circuit is shorted to power
Solid State relay is damaged or has failed
AIR pump ground circuit is open
AIR pump is damaged or has failed
PCM has failed
Trouble Code: P1451
EVAP System Canister Vent Solenoid Circuit Malfunction
Possible Causes:
CV solenoid circuit is open, shorted to ground or system power
CV solenoid is damaged or has failed
PCM has failed
Trouble Code: P1460
Wide Open Throttle A/C Cutout Relay Circuit Malfunction
Possible Causes:
WOT A/C Relay control circuit is open or shorted to ground
WOT A/C Relay VREF circuit is open
WOT A/C Relay is damaged or has failed
PCM has failed
Trouble Code: P1461
A/C Pressure Sensor Circuit High Input
Possible Causes:
ACP sensor circuit shorted to VREF or to power (VPWR)
ACP sensor circuit is open, or the ground circuit is open
ACP sensor is damaged or has failed
PCM has failed
Trouble Code: P1462
A/C Pressure Sensor Circuit Low Input
Possible Causes:
ACP sensor circuit shorted to VREF or to power (VPWR)
ACP sensor circuit is open, or the ground circuit is open
ACP sensor is damaged or has failed
PCM has failed
Trouble Code: P1463
A/C Pressure Sensor Insufficient Pressure Change
Possible Causes:
A/C system mechanical failure, or A/C clutch always engaged
ACP sensor signal open, or sensor ground circuit open
A/C sensor is damaged or the PCM has failed
Trouble Code: P1469
Low A/C Cycling Period
Possible Causes:
Cycling pressure switch circuit open between pin 41 (ACCS) and the PCM, or the IGN RUN circuit is open to the cycling pressure switch circuit (if applicable)
Mechanical A/C system concern (i.e., low refrigerant charge, damaged A/C switch)
Trouble Code: P1474
Hydraulic Cooling Fan Primary Circuit Malfunction
Possible Causes:
FC circuit is open or shorted to power
LFC circuit is open or shorted to power (CCRM models)
FC or LFC relay VPWR circuit is open (Start/Run on Probe)
Trouble Code: P1479
High Fan Control Primary Circuit Malfunction
Possible Causes:
HFC circuit is open
HFC circuit is shorted to ground
HFC relay power circuit (VPWR) is open
High speed FC relay is damaged or it has failed
PCM has failed
Trouble Code: P1500
VSS Signal Or POSM Signal Intermittent
Possible Causes:
VSS pins damaged, loose or pushed in at the connector
VSS circuit open or shorted in the wiring harness (insulation)
VSS wiring harness routing incorrect or VSS mounting incorrect
TSB 01-21-13 contains a repair procedure for this trouble code
Trouble Code: P1501
VSS Signal Out Of Self-Test Range
Possible Causes:
VSS signal is noisy due to Radio Frequency Interference/ Electro-Magnetic Interference (RFI/EMI) from outside devices (ignition wires, charging circuit or aftermarket devices)
Trouble Code: P1502
VSS Signal Intermittent
Possible Causes:
VSS+ or VSS- harness circuit is open
TCSS signal or TCSS signal return harness circuit is open
VSS harness circuit, TCSS harness circuit is shorted to ground
VSS harness circuit, CSS harness circuit is shorted to power
VSS circuit open between the PCM and related control module
VSS or TCSS, or wheel speed sensors circuits are damaged
Modules connected to VSC/VSS harness circuits are damaged
Mechanical drive mechanism for the VSS or TCSS is damaged
Trouble Code: P1504
Idle Air Control System Malfunction
Possible Causes:
Base engine vacuum leaks present
Damaged or loose IAC tubes
Loose air cleaner housing
Throttle body leak
EGR valve or gasket leak
Vacuum hose leaks
Trouble Code: P1506
Idle Air Control Overspeed Error
Possible Causes:
Base engine vacuum leaks present
EVAP system has a problem
IAC circuit shorted to ground
IAC valve is stuck open, or it is damaged
Throttle body or throttle plate is contaminated or very dirty
Trouble Code: P1507
Idle Air Control Underspeed Error
Possible Causes:
Air inlet is plugged or the air filter element is severely clogged
IAC circuit is open, or shorted to the VPWR circuit
IAC circuit VPWR circuit is open
IAC solenoid is damaged or has failed
Throttle body or throttle plate is contaminated or very dirty
Trouble Code: P1518
Intake Manifold Runner Control Malfunction (Stuck Open)
Possible Causes:
IMRC monitor signal circuit shorted to power ground
IMRC Monitor signal circuit shorted to signal ground (return)
IMRC actuator is damaged or has failed
PCM has failed
Trouble Code: P1519
Intake Manifold Runner Control Stuck Closed
Possible Causes:
IMRC monitor signal circuit shorted to power ground
IMRC Monitor signal circuit shorted to signal ground (return)
IMRC actuator is damaged or has failed (e.g., there may be a small leak in the vacuum diaphragm of the actuator)
PCM has failed
Trouble Code: P1520
Intake Manifold Runner Control Input Error
Possible Causes:
IMRC control circuit is open or shorted to ground
IMRC Monitor VREF circuit is open
IMRC is damaged or the PCM has failed
Trouble Code: P1582
Electronic Throttle Monitor Data Available
Possible Causes:
n/a
Trouble Code: P1605
PCM Keep Alive Memory Test Error
Possible Causes:
Battery terminals loose or corroded (high resistance in circuit)
Keep Alive Memory circuit to PCM interrupted or open
Reprogramming function not performed
PCM has failed
Trouble Code: P1635
Tire Axle/Ratio Out Of Acceptable Range
Possible Causes:
Incorrect tire size or Incorrect axle ratio
Incorrect VID configuration parameters
PCM need to be reprogrammed
TSB 02-23-4 contains repair information for this trouble code
Trouble Code: P1636
Inductive Signature Chip Communication Error
Possible Causes:
PCM has failed and needs to be replaced
Trouble Code: P1639
Vehicle ID Block Not Programmed Or Is Corrupt
Possible Causes:
PCM may not be the correct application
PCM may need to be reprogrammed
VID configuration may not be correct
TSB 02-23-4 contains repair information for this trouble code
Trouble Code: P1640
Powertrain DTCs Available in Another Module
Possible Causes:
DTCs stored in a secondary module, which requested the MIL to be turned on.
Trouble Code: P1650
Power Steering Pressure Switch Circuit Malfunction
Possible Causes:
Steering wheel must be turned during the KOER Self-Test
PSP switch/shorting bar is damaged
PSP signal circuit is open or shorted to ground
PSP switch ground (return) circuit is open
PCM has failed
Trouble Code: P1651
Power Steering Pressure Switch Circuit Malfunction
Possible Causes:
Steering wheel must be turned during the KOER Self-Test
PSP switch/shorting bar is damaged
PSP signal circuit is open or shorted to ground
PSP switch ground (return) circuit is open
PCM has failed
Trouble Code: P1703
Brake Switch Circuit Out of Self-Test Range
Possible Causes:
BPP switch circuit open or shorted
Brake Switch is misadjusted, damaged or has failed
Stop lamp circuits open or shorted
Malfunction in the module(s) connected to BPP circuit (i.e., the Rear Electronic Module on Windstar and LS, or the Lighting Control Module on the Continental and Town Car)
PCM has failed
Trouble Code: P1709
PNP Switch Out Of Self-Test Range
Possible Causes:
PNP switch ground circuit is open
PNP switch circuit short to power (VPWR)
PNP switch is damaged or has failed
PCM has failed
Trouble Code: P1712
TFT Sensor Circuit Low Input
Possible Causes:
n/a
Trouble Code: P1729
4 x 4 Low Switch Circuit Malfunction
Possible Causes:
Speedometer out of calibration
4x4L wiring harness is open or shorted, 4x4L switch is damaged or has failed
Electronic Shift Control Module is damaged or has failed, or the PCM has failed
Trouble Code: P1741
TCC Engagement Error
Possible Causes:
n/a
Trouble Code: P1742
TCC Solenoid Failed On (Electrical Or Mechanical Fault)
Possible Causes:
n/a
Trouble Code: P1744
TCC System Mechanically Stuck In Off Position
Possible Causes:
n/a
Trouble Code: P1746
EPC Solenoid Circuit Malfunction
Possible Causes:
n/a
Trouble Code: P1747
A/T EPC Solenoid Circuit Malfunction
Possible Causes:
n/a
Trouble Code: P1749
A/T EPC Solenoid Failed Low
Possible Causes:
n/a
Trouble Code: P1751
A/T Shift Solenoid 1 Performance
Possible Causes:
n/a
Trouble Code: P1754
A/T Shift Solenoid 1 Performance Conditions
Possible Causes:
n/a
Trouble Code: P1756
A/T Shift Solenoid 2 Performance
Possible Causes:
n/a
Trouble Code: P1761
A/T Shift Solenoid 3 Performance
Possible Causes:
n/a
Trouble Code: P1780
Transmission Control Switch Out of Self-Test Range
Possible Causes:
TCS circuit open or shorted in the wiring harness
TCS not cycled during the self-test
TCS is damaged, or the PCM has failed
Trouble Code: P1781
4 x 4 Low Switch Out Of Self-Test Range
Possible Causes:
4x4L switch circuit is open or shorted in the wiring harness
Electronic Shift Module is damaged or has failed
PCM has failed
Trouble Code: P1784
Transmission System First Or Reverse Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1785
Transmission System First Or Second Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1786
Transmission System Second Or Third Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1787
Transmission System Third Or Fourth Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1900
Transmission System Malfunction
Possible Causes:
Harness connector not properly seated
Harness intermittently shorted or open
Harness connector damaged
OSS sensor damaged, or not installed properly
Trouble Code: P1901
Transmission System Malfunction
Possible Causes:
Harness connector not properly seated
Harness intermittently shorted or open
Harness connector damaged
TSS sensor damaged or not installed properly
Trouble Code: P1910
Reverse Lamp Control Circuit Condition
Possible Causes:
Open in the circuit
Short to ground / voltage
Car repair guide?
http://technoanswers.blogspot.in/2012/03/car-repair-guide.html
Trouble Code: P0018
Crankshaft Position - Camshaft Position Correlation - Bank 2 Sensor A
Possible Causes:
Camshaft timing incorrectly set
VCT solenoid stuck in position
Camshaft advance mechanism binding (VCT unit)
Trouble Code: P0102
MAF Sensor Circuit Low Input
Possible Causes:
Check for leaks at air outlet tube
Sensor power circuit open, sensor ground circuit open
Sensor signal circuit open (may be disconnected)
Check for loose tube clamps near the MAF sensor
Trouble Code: P0103
MAF Sensor Circuit High Input
Possible Causes:
Check for a restricted inlet screen on the MAF sensor.
MAF sensor signal circuit is shorted to system power (B+)
MAF sensor is damaged or the PCM has failed
Trouble Code: P0112
Intake Air Temperature Sensor Circuit Low Input
Possible Causes:
IAT sensor signal circuit is grounded (check wiring & connector)
IAT sensor is damaged or it has failed
PCM has failed
Trouble Code: P0113
Intake Air Temperature Sensor Circuit High Input
Possible Causes:
IAT sensor signal circuit is open (inspect wiring & connector)
IAT sensor signal circuit is shorted to VREF (5v)
IAT sensor is damaged or it has failed
PCM has failed
Trouble Code: P0117
ECT Sensor Circuit Low Input
Possible Causes:
ECT sensor signal circuit is grounded in the wiring harness
ECT sensor is damaged or the PCM has failed
Trouble Code: P0118
ECT Sensor Circuit High Input
Possible Causes:
ECT sensor signal circuit is open (inspect wiring & connector)
ECT sensor signal circuit is shorted to VREF (5v)
ECT sensor is damaged or it has failed
PCM has failed
Trouble Code: P0121
TP Sensor Signal Range/Performance
Possible Causes:
Throttle plate is binding, dirty or sticking
TP sensor signal circuit open (inspect wiring & connector)
TP sensor ground circuit open (inspect wiring & connector)
TP Sensor is damaged or has failed
Trouble Code: P0122
TP Sensor Circuit Low Input
Possible Causes:
TP sensor signal circuit open (inspect wiring & connector)
TP sensor signal shorted to ground (inspect wiring & connector)
TP sensor VREF circuit is open (between the sensor and PCM)
TP sensor is damaged or has failed
PCM has failed
Trouble Code: P0123
TP Sensor Circuit High Input
Possible Causes:
TP sensor not seated correctly in housing (may be damaged)
TP sensor signal is circuit shorted to VREF or system voltage
TP sensor ground circuit is open (check the wiring harness)
Perform a "sensor sweep test" and monitor for any glitches
PCM has failed
Trouble Code: P0125
Insufficient Coolant Temperature For Closed Loop
Possible Causes:
Check the coolant mixture for an incorrect mixture
Check the operation of the thermostat (it may be stuck open)
ECT sensor (or the CHT sensor) has failed
Inspect for low coolant level
Trouble Code: P0126
Insufficient Coolant Temperature For Closed Loop
Possible Causes:
Check the coolant mixture for an incorrect mixture
Check the operation of the thermostat (it may be stuck open)
ECT sensor (or the CHT sensor) has failed
Inspect for low coolant level
Trouble Code: P0131
HO2S-11 (Bank 1 Sensor 1) Circuit High Input
Possible Causes:
HO2S connector pins damaged
Loose circuit connections (including harness connectors)
PCM has failed
Trouble Code: P0132
HO2S-11 (Bank 1 Sensor 1) Circuit High Input
Possible Causes:
HO2S signal shorted to heater power circuit inside connector
HO2S signal circuit shorted to VREF or to system voltage
PCM has failed
Trouble Code: P0133
HO2S-11 Circuit Slow Response (Bank 1, Sensor 1)
Possible Causes:
Contaminated HO2S* Exhaust leaks
Shorted/open wiring
Incorrect fueling
MAF sensor
Deteriorating HO2S
Inlet air leaks
Trouble Code: P0135
HO2S-11 Heater Circuit (Bank 1, Sensor 1)
Possible Causes:
Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications
Short to VPWR in the harness or HO2S
Water in the harness connector
Open VPWR circuit
Open GND circuit
Low battery voltage
Corrosion or incorrect harness connections
Damaged HO2S heater
Trouble Code: P0136
HO2S-12 Circuit Malfunction (Bank 1, Sensor 2)
Possible Causes:
Pinched, shorted, and corroded wiring and pins
Crossed sensor wires
Exhaust leaks
Contaminated or damaged sensor
Trouble Code: P0138
HO2S-11 (Bank 1 Sensor 1) Circuit High Input
Possible Causes:
HO2S signal shorted to heater power circuit inside connector
HO2S signal circuit shorted to VREF or to system voltage
PCM has failed
Trouble Code: P0141
HO2S-11 Heater Circuit (Bank 1, Sensor 1)
Possible Causes:
Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications* Short to VPWR in the harness or HO2S
Water in the harness connector
Open VPWR circuit
Open GND circuit
Low battery voltage
Corrosion or incorrect harness connections
Damaged HO2S heater
Trouble Code: P0152
HO2S-21 (Bank 2 Sensor 1) Circuit High Input
Possible Causes:
* HO2S is contaminated (due to presence of silicone in fuel)
HO2S signal tracking (due to oil or moisture in the connector)
HO2S signal circuit is open or shorted to VREF
PCM has failed
Trouble Code: P0153
HO2S-21 (Bank 2 Sensor 1) Circuit Slow Response
Possible Causes:
HO2S is contaminated (due to presence of silicone in fuel)
Leaks present in the exhaust manifold or exhaust pipes
HO2S is damaged or has failed
PCM has failed
Trouble Code: P0155
HO2S-21 (Bank 2 Sensor 1) Heater Circuit Malfunction
Possible Causes:
HO2S heater power circuit is open
HO2S heater ground circuit is open
HO2S signal tracking (due to oil or moisture in the connector)
HO2S is damaged or has failed
PCM has failed
Trouble Code: P0156
HO2S-22 (Bank 2 Sensor 2) Circuit No Activity
Possible Causes:
Leaks present in the exhaust manifold or exhaust pipes
HO2S signal wire and ground wire crossed in connector
HO2S element is fuel contaminated or has failed
PCM has failed
Trouble Code: P0161
HO2S-22 (Bank 2 Sensor 2) Heater Circuit Malfunction
Possible Causes:
HO2S heater power circuit or the heater ground circuit is open
HO2S signal tracking (due to oil or moisture in the connector)
HO2S has failed, or the PCM has failed
Trouble Code: P0171
Fuel System Too Lean (Cylinder Bank 1)
Possible Causes:
Air leaks after the MAF sensor, or leaks in the PCV system
Exhaust leaks before or near where the HO2S is mounted
Fuel injector(s) restricted or not supplying enough fuel
Fuel pump not supplying enough fuel during high fuel demand conditions
Leaking EGR gasket, or leaking EGR valve diaphragm
MAF sensor dirty (causes PCM to underestimate airflow)
Vehicle running out of fuel or engine oil dip stick not seated
Trouble Code: P0172
Fuel System Too Rich (Cylinder Bank 1)
Possible Causes:
Camshaft timing is incorrect, or the engine has an oil overfill condition
EVAP vapor recovery system failure (may be pulling vacuum)
Fuel pressure regulator is damaged or leaking
HO2S element is contaminated with alcohol or water
MAF or MAP sensor values are incorrect or out-of-range
One of more fuel injectors is leaking
Trouble Code: P0174
Fuel System Too Lean (Cylinder Bank 2)
Possible Causes:
Air leaks after the MAF sensor, or leaks in the PCV system
Exhaust leaks before or near where the HO2S is mounted
Fuel injector(s) restricted or not supplying enough fuel
Fuel system not supplying enough fuel during high fuel demand conditions (e.g., the fuel pump may not supply enough fuel)
Leaking EGR gasket, or leaking EGR valve diaphragm
MAF sensor dirty (causes PCM to underestimate airflow)
Vehicle running out of fuel or engine oil dip stick not seated
Trouble Code: P0175
Fuel System Too Rich (Cylinder Bank 2)
Possible Causes:
Camshaft timing is incorrect
Engine oil overfill condition
EVAP vapor recovery system failure (may be pulling vacuum)
Fuel pressure regulator is damaged or leaking
HO2S element is contaminated with alcohol or water
MAF or MAP sensor values are incorrect or out-of-range
One of more fuel injectors is leaking
Trouble Code: P0230
Fuel Pump Primary Circuit Malfunction
Possible Causes:
FP or FSV circuit is open or shorted
Fuel pump relay VPWR circuit open
Fuel pump relay is damaged or has failed
PCM has failed
Trouble Code: P0231
Fuel Pump Primary Circuit Low Input
Possible Causes:
FP or FSV circuit is open or shorted to ground
Fuel pump relay VPWR circuit open or fuel pump relay failed
PCM has failed
Trouble Code: P0232
Fuel Pump Secondary Circuit High Input
Possible Causes:
Fuel pump relay contacts always closed
Fuel pump ground circuit has high resistance
Fuel pump secondary circuit is shorted to power
Low speed fuel pump relay damaged or related circuit problem
Trouble Code: P0300
Random Misfire Detected
Possible Causes:
Base engine mechanical fault that affects two or more cylinders
Fuel metering fault that affects two or more cylinders
Fuel pressure too low or too high, fuel supply contaminated
EVAP system problem or the EVAP canister is fuel saturated
EGR valve is stuck open or the PCV system has a vacuum leak
Ignition system fault (coil, plug) affecting two or more cylinders
MAF sensor contamination (it can cause a very lean condition)
Vehicle driven while very low on fuel (less than 1/8 of a tank)
Trouble Code: P0301
Cylinder Number 1 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 1
Fuel delivery component problem that affects only Cylinder 1 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 1
Trouble Code: P0302
Cylinder Number 2 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 2
Fuel delivery component problem that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 2
Trouble Code: P0303
Cylinder Number 3 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 3
Fuel delivery component problem that affects only Cylinder 3 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 3
Trouble Code: P0304
Cylinder Number 4 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 4
Fuel delivery component problem that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 4
Trouble Code: P0305
Cylinder Number 5 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 5
Fuel delivery component problem that affects only Cylinder 5 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 5
Trouble Code: P0306
Cylinder Number 6 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 6
Fuel delivery component problem that affects only Cylinder 6 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 6
Trouble Code: P0307
Cylinder Number 7 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 7
Fuel delivery component problem that affects only Cylinder 7 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 7
Trouble Code: P0308
Cylinder Number 8 Misfire Detected
Possible Causes:
Air leak in the intake manifold, or in the EGR or PCM system
Base engine mechanical problem that affects only Cylinder 8
Fuel delivery component problem that affects only Cylinder 8 (i.e., a contaminated, dirty or sticking fuel injector)
Ignition system problem (coil, plug) that affects only Cylinder 8.
Trouble Code: P0325
Knock Sensor 1 Circuit Malfunction
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0326
Knock Sensor 1 Signal Range/Performance
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0330
Knock Sensor 2 Circuit Malfunction
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0331
Knock Sensor 2 Signal Range/Performance
Possible Causes:
Knock sensor circuit is open
Knock sensor circuit is shorted to ground, or shorted to power
Knock sensor is damaged or it has failed
PCM has failed
Trouble Code: P0340
Camshaft Position Sensor Circuit Malfunction
Possible Causes:
CMP circuit open
CMP circuit short to GND
CMP circuit short to voltage
SIG RTN open (VR sensor)
CMP GND open (Hall-effect sensor)
CMP circuit short to CMP2 circuit (if equipped)
CMP incorrectly installed (Hall-effect sensor)
Damaged CMP sensor shielding
Damaged CMP sensor
Damaged PCM
Trouble Code: P0350
Ignition Coil (Undetermined) Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver circuit is open or shorted to ground
Ignition coil circuit is shorted to power
Ignition coil damaged or it has failed
PCM has failed
Trouble Code: P0351
Ignition Coil 1 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 1 circuit open, shorted to ground or to power
Ignition coil 1 is damaged or it has failed
PCM has failed
Trouble Code: P0352
Ignition Coil 2 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 2 circuit open, shorted to ground or to power
Ignition coil 2 is damaged or it has failed
PCM has failed
Trouble Code: P0353
Ignition Coil 3 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 3 circuit open, shorted to ground or to power
Ignition coil 3 is damaged or it has failed
PCM has failed
Trouble Code: P0354
Ignition Coil 4 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 4 circuit open, shorted to ground or to power
Ignition coil 4 is damaged or it has failed
PCM has failed
Trouble Code: P0400
Exhaust Gas Recirculation (EGR) Flow
Possible Causes:
EEGR valve stuck open or closed
Connector to EEGR not seated
EEGR motor winding circuits short or open
No voltage to the EEGR
Harness open or shorted to voltage or ground
Vacuum signal to manifold absolute pressure (MAP) restricted or leaking
Mass air flow (MAF) sensor signal erroneous
Carbon build up in the EEGR valve seat area
One or more sensors is not responding or is out of range
Trouble Code: P0401
Insufficient EGR Flow Detected
Possible Causes:
DPFE sensor signal circuit is shorted to ground
DPFE sensor VREF circuit is open between sensor and PCM
DPFE sensor downstream hose off or plugged
DPFE sensor hoses both off, loose or damaged
DPFE sensor hoses connected wrong (reversed)
EGR orifice tube is damaged or restricted
Trouble Code: P0402
Excessive EGR Flow Detected
Possible Causes:
DPFE EGR valve source hoses loose or connected wrong
DPFE sensor slow to respond or sluggish (it may have failed)
DPFE sensor signal circuit is open or shorted to ground
DPFE EGR sensor is damaged or the PCM has failed
Trouble Code: P0410
Secondary Air Injection (AIR) System
Possible Causes:
AIR inlet hose leak
AIR inlet hose disconnected
Trouble Code: P0411
Secondary AIR System Incorrect Upstream Flow Detected
Possible Causes:
Air pump output is blocked
AIR bypass solenoid leaking or blocked
AIR bypass solenoid is stuck open or stuck closed
Air injection pump hose(s) leaking
PCM has failed
Trouble Code: P0412
Secondary Air Injection Solenoid Circuit Malfunction
Possible Causes:
AIR solenoid power circuit (B+) is open (check dedicated fuse)
AIR bypass solenoid control circuit is open or shorted to ground
AIR diverter solenoid control circuit open or shorted to ground
AIR pump control circuit is open or shorted to ground
Check valve (one or more) is damaged or leaking
Solid State relay is damaged or it has failed
PCM has failed
Trouble Code: P0420
Catalyst System Efficiency Bank 1 Below Threshold
Possible Causes:
Air leaks at the exhaust manifold or in the exhaust pipes
Catalytic converter is damaged, contaminated or it has failed
ECT/CHT sensor has lost its calibration (the signal is incorrect)
Engine cylinders misfiring, or the ignition timing is over retarded
Engine oil is contaminated
Front HO2S or rear HO2S is contaminated with fuel or moisture
Front HO2S and/or the rear HO2S is loose in the mounting hole
Front HO2S much older than the rear HO2S (HO2S-11 is lazy)
Fuel system pressure is too high (check the pressure regulator)
Rear HO2S wires improperly connected or the HO2S has failed
Trouble Code: P0430
Catalyst System Efficiency Bank 2 Below Threshold
Possible Causes:
Air leaks at the exhaust manifold or in the exhaust pipes
Catalytic converter is damaged, contaminated or it has failed
ECT/CHT sensor has lost its calibration (the signal is incorrect)
Engine cylinders misfiring, or the ignition timing is over retarded
Engine oil is contaminated
Front HO2S or rear HO2S is contaminated with fuel or moisture
Front HO2S and/or the rear HO2S is loose in the mounting hole
Front HO2S much older than the rear HO2S (HO2S-11 is lazy)
Fuel system pressure is too high (check the pressure regulator)
Rear HO2S wires improperly connected or the HO2S has failed
Trouble Code: P0500
Vehicle Speed Sensor Malfunction
Possible Causes:
Modules connected to VSC/VSS harness circuits are damaged
Mechanical drive mechanism for the VSS or TCSS is damaged
VSS+ or VSS- harness circuit is open
TCSS signal or TCSS signal return harness circuit is open
VSS harness circuit, TCSS harness circuit is shorted to ground
VSS harness circuit, CSS harness circuit is shorted to power
VSS circuit open between the PCM and related control module
VSS or TCSS, or wheel speed sensors circuits are damaged
Trouble Code: P0505
Idle Air Control System Malfunction
Possible Causes:
Air inlet dirty, restricted or the air cleaner is severely restricted
IAC solenoid control circuit is open, shorted to ground or to B+
IAC solenoid power circuit (VPWR) is open from the relay
IAC valve is damaged or has failed
PCM has failed
TSB 03-3-5 contains repair information for this trouble code
Trouble Code: P0552
Power Steering Pressure (PSP) Sensor
Possible Causes:
PSP sensor damaged
SIG RTN circuit open or shorted
VREF circuit open or shorted
PSP sensor signal circuit open or shorted
PCM has failed
Trouble Code: P0553
Power Steering Pressure (PSP) Sensor
Possible Causes:
PSP sensor damaged
SIG RTN circuit open or shorted
VREF circuit open or shorted
PSP sensor signal circuit open or shorted
PCM has failed
Trouble Code: P0603
PCM Keep Alive Memory Test Error
Possible Causes:
Battery terminal corrosion, or loose battery connection
KAPWR to PCM interrupted, or the circuit has been opened
Reprogramming error has occurred
PCM has failed and needs replacement. Remember to check for Aftermarket Performance Products before replacing a PCM.
Trouble Code: P0604
Internal Control Module Random Access Memory (RAM) Error
Possible Causes:
Module reprogramming
Aftermarket performance products
Damaged PCM
Trouble Code: P0605
PCM Read Only Memory Test Error
Possible Causes:
An attempt was made to change the module calibration, or a Module programming error may have occurred
Clear the trouble codes and then check for this trouble code. If it resets, the PCM has failed and needs replacement.
Remember to check for signs of Aftermarket Performance Products installation before replacing the PCM.
Trouble Code: P0607
Control Module Performance
Possible Causes:
Module programming error
Aftermarket performance products
Damaged PCM
Trouble Code: P0657
Actuator Supply Voltage A Circuit/Open
Possible Causes:
n/aagnostic Troubleshooting:
Refer to the mechanical section covering automatic transmissions.
Trouble Code: P0703
Brake Switch Circuit Malfunction
Possible Causes:
BPP switch circuit is open
BPP switch is damaged or it is out of adjustment
BPP switch power circuit is open (check the switch inline fuse)
Trouble Code: P0705
DTR Sensor / TR Sensor Circuit Malfunction
Possible Causes:
DTR or TR sensor connector is damaged or shorted
DTR or TR sensor signal circuit is open or shorted to ground
DTR or TR sensor signal circuit is shorted to VREF (5v)
DTR or TR sensor damaged
PCM has failed
Trouble Code: P0707
DTR Sensor / TR Sensor Circuit Low Input
Possible Causes:
DTR or TR sensor connector is damaged or it is shorted
DTR or TR sensor signal circuit is shorted to sensor ground
DTR or TR sensor damaged
PCM has failed
Trouble Code: P0708
DTR Sensor or TR Sensor Circuit High Input
Possible Causes:
DTR or TR sensor connector is damaged or open
DTR or TR sensor signal circuit is open
DTR or TR sensor is shorted to VREF (5v)
DTR or TR sensor is damaged or the PCM has failed
Trouble Code: P0711
TFT Sensor Signal Range/Performance
Possible Causes:
ATF is low, contaminated, dirty or burnt
TFT sensor signal circuit has a high resistance condition
TFT sensor is out-of-calibration ("skewed") or it has failed
PCM has failed
Trouble Code: P0731
Incorrect First Gear Ratio
Possible Causes:
1st Gear solenoid harness connector not properly seated
1st Gear solenoid signal shorted to ground, or open
1st Gear solenoid wiring harness connector is damaged
1st Gear solenoid is damaged or not properly installed
TSB 02-2-4 contains a repair procedure for this trouble code
Trouble Code: P0732
Incorrect Second Gear Ratio
Possible Cause:
2nd Gear solenoid harness connector not properly seated
2nd Gear solenoid signal shorted to ground, or open
2nd Gear solenoid wring harness connector is damaged
2nd Gear solenoid is damaged or not properly installed
Trouble Code: P0733
Incorrect Third Gear Ratio
Possible Causes:
3rd Gear solenoid harness connector not properly seated
3rd Gear solenoid signal shorted to ground, or open
3rd Gear solenoid wiring harness connector is damaged
3rd Gear solenoid is damaged or not properly installed
Trouble Code: P0734
Incorrect Fourth Gear Ratio
Possible Causes:
4th Gear solenoid harness connector not properly seated
4th Gear solenoid signal shorted to ground, or open
4th Gear solenoid wiring harness connector is damaged
4th Gear solenoid is damaged or not properly installed
Trouble Code: P0736
Incorrect Reverse Gear Ratio
Possible Causes:
Reverse Gear solenoid harness connector not properly seated
Reverse Gear solenoid signal shorted to ground, or open
Reverse Gear solenoid wiring harness connector is damaged
Reverse Gear solenoid is damaged or not properly installed
Trouble Code: P0743
TCC Solenoid Circuit Malfunction
Possible Causes:
TCC solenoid control circuit is open
TCC solenoid control circuit is shorted to ground
TCC solenoid wiring harness connector is damaged
TCC solenoid is damaged or it has failed
PCM has failed
Trouble Code: P0746
A/T EPC Solenoid Circuit Malfunction
Possible Causes:
EPC solenoid control circuit is open
EPC solenoid control circuit is shorted to ground
EPC solenoid wiring harness connector is damaged
EPC solenoid is damaged or it has failed
PCM has failed
Trouble Code: P0750
A/T Shift Solenoid 1/A Circuit Malfunction
Possible Causes:
SS1/A solenoid control circuit is open
SS1/A solenoid control circuit is shorted to ground
SS1/A solenoid wiring harness connector is damaged
SS1/A solenoid is damaged or has failed
PCM has failed.
Trouble Code: P0751
A/T Shift Solenoid 1/A Function Range/Performance
Possible Causes:
SS1/A solenoid is stuck in the "off" position
SS1/A solenoid has a mechanical failure
SS1/A solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0752
A/T Shift Solenoid 1/A Function Range/Performance
Possible Causes:
SS1/A solenoid is stuck in the "on" position
SS1/A solenoid has a mechanical failure
SS1/A solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0753
A/T Shift Solenoid 1/A Circuit Malfunction
Possible Causes:
SS1/A solenoid control circuit is open
SS1/A solenoid control circuit is shorted to ground
SS1/A solenoid wiring harness connector is damaged
SS1/A solenoid is damaged or has failed
PCM has failed
Trouble Code: P0755
A/T Shift Solenoid 2/B Circuit Malfunction
Possible Causes:
SS2/B solenoid control circuit is open
SS2/B solenoid control circuit is shorted to ground
SS2/B solenoid wiring harness connector is damaged
SS2/B solenoid is damaged or has failed
PCM has failed
Trouble Code: P0756
A/T Shift Solenoid 2/B Function Range/Performance
Possible Causes:
SS2/B solenoid is stuck in the "on" position
SS2/B solenoid has a mechanical failure
SS2/B solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0757
A/T Shift Solenoid 2/B Function Range/Performance
Possible Causes:
SS2/B solenoid is stuck in the "on" position
SS2/B solenoid has a mechanical failure
SS2/B solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0758
A/T Shift Solenoid 2/B Circuit Malfunction
Possible Causes:
Shift Solenoid 2/B connector is damaged, open or shorted
Shift Solenoid 2/B control circuit is open
Shift Solenoid 2/B control circuit is shorted to ground
Shift Solenoid 2/B is damaged or it has failed
PCM has failed
Trouble Code: P0760
A/T Shift Solenoid 3/C Circuit Malfunction
Possible Causes:
Shift Solenoid 3/C connector is damaged, open or shorted
Shift Solenoid 3/C control circuit is open
Shift Solenoid 3/C control circuit is shorted to ground
Shift Solenoid 3/C is damaged or it has failed
PCM has failed
Trouble Code: P0761
A/T Shift Solenoid 3/C Function Range/Performance
Possible Causes:
SS3/C solenoid may be stuck -off-
SS3/C solenoid has a mechanical failure
SS3/C solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0762
A/T Shift Solenoid 3/C Function Range/Performance
Possible Causes:
SS3/C solenoid may be stuck -on-
SS3/C solenoid has a mechanical failure
SS3/C solenoid has a hydraulic failure
PCM has failed
Trouble Code: P0781
A/T 1 to 2 Shift Error
Possible Causes:
SS1/A solenoid may be stuck
SS1/A solenoid has a hydraulic problem
SS2/B solenoid may be stuck
SS2/B has a hydraulic problem
Transmission may have damaged friction material
Transmission has internal damage and needs replacement
Trouble Code: P0782
A/T 2 to 3 Shift Error
Possible Causes:
SS1/A solenoid may be stuck
SS1/A solenoid has a hydraulic problem
SS2/B solenoid may be stuck
SS2/B has a hydraulic problem
Transmission may have damaged friction material
Transmission has internal damage and needs replacement
Trouble Code: P0783
A/T 3 to 4 Shift Error
Possible Causes:
SS1/A solenoid may be stuck, or a hydraulic failure exists
SS2/B solenoid may be stuck, or a hydraulic failure exists
Transmission may have damaged friction material
Trouble Code: P0784
A/T 4 to 5 Shift Error
Possible Causes:
SS2/B solenoid may be stuck, or a hydraulic failure exists
SS3/C solenoid may be stuck, or a hydraulic failure exists
Transmission may have damaged friction material
Trouble Code: P0815
Transmission Control System Malfunction
Possible Causes:
Refer to the information in the Transmission Section of the appropriate Workshop Repair manual (i.e., the information for the particular vehicle that set this trouble code).
Trouble Code: P0830
Clutch Pedal Switch A Circuit
Possible Causes:
Damaged CPP-BT switch
Damaged CPP-BT harness
Open PWRGND circuit to the CPP-BT switch
Vehicle push-started with the clutch engaged (clutch pedal released)
Aftermarket remote starting device
Trouble Code: P0833
Clutch Pedal Switch B Circuit
Possible Causes:
Damaged CPP-TT switch
Damaged CPP-TT harness
Open PWRGND circuit to the CPP-TT switch
Vehicle push-started with the clutch engaged (clutch pedal released)
Aftermarket remote starting device
Trouble Code: P1000
OBD II Monitor Testing Not Complete
Possible Causes:
Battery keep alive power (KAPWR) was removed to the PCM
One or more OBD II Monitors did not complete during an official OBD II Drive Cycle
PCM Reset step was performed with an OBD II Scan Tool
Trouble Code: P1001
KOER Self-Test Not Completed, KOER Test Aborted
Possible Causes:
Engine speed (RPM) out of specification during the KOER test
Incorrect Self-Test Procedure
Scan Tool has a communication problem
Unexpected response from Self-Test monitors
Trouble Code: P1101
Mass Air Flow (MAF) Sensor Out of Self-Test Range
Possible Causes:
Low battery charge
MAF sensor partially connected
MAF sensor contamination
PWR GND open to the MAF sensor
MAF RTN circuit open to PCM
Damaged MAF sensor
Trouble Code: P1112
IAT Sensor Circuit Intermittent
Possible Causes:
IAT sensor wiring harness is damaged (wire may be open)
IAT sensor harness connector is damaged
IAT sensor is damaged or the PCM has failed
Trouble Code: P1116
CHT or ECT Sensor Out Of Self-Test Range
Possible Causes:
ECT sensor harness connector is damaged, loose or shorted
ECT sensor is damaged
KOER or KOER Self-Test performed with the engine "too cold"
Trouble Code: P1117
CHT or ECT Sensor Signal Intermittent
Possible Causes:
ECT sensor harness connector is damaged, loose or shorted
ECT sensor is damaged or it has failed
Engine overheating condition present
Thermostat is faulty, or engine coolant level is low
Trouble Code: P1120
TP Sensor Signal Out-of-Range Low
Possible Causes:
ECT sensor harness connector is damaged
ECT sensor is damaged
Engine coolant level is low
PCM has failed
Trouble Code: P1121
TP Sensor Inconsistent With MAF Sensor
Possible Causes:
Air leak exists between MAF sensor and the throttle body
MAF sensor is damaged or it has failed
TP sensor is not seated properly
TP sensor is damaged
Trouble Code: P1124
TP Sensor Out of Self-Test Range
Possible Causes:
Throttle linkage is binding, or TP sensor is not seated properly
Throttle plate below closed throttle position
Throttle plate screw is misadjusted
TP sensor is damaged or it has failed
PCM has failed
Trouble Code: P1125
TP Sensor Circuit Malfunction (Intermittent)
Possible Causes:
TP sensor wiring harness or connector has an intermittent open
TP sensor has an intermittent open or shorted condition
Trouble Code: P1130
Lack of HO2S-11 Switching, Fuel Trim at Rich/Lean Limit
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
EGR valve sticking, EGR diaphragm leaking, or gasket leaking
EVAP vapor recovery system has failed
Excessive fuel pressure, leaking or contaminated fuel injectors
Exhaust leaks before or near the HO2S(s) mounting location
Fuel pressure regulator is leaking or damaged
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S is damaged or it has failed
HO2S signal circuit open, shorted to ground, shorted to power
Low fuel pressure or vehicle driven until it was out of fuel
Oil dipstick not seated or engine oil level too high (overfilled)
Trouble Code: P1131
Lack of HO2S-11 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S signal circuit open, shorted to ground, shorted to power, or the sensor has failed
Low fuel pressure or vehicle driven until it was out of fuel
Possible air leaks at the PCV valve or at the related hoses
Trouble Code: P1132
Lack of HO2S-11 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1137
Lack of HO2S-12 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S is damaged or it has failed
HO2S signal circuit open, shorted to ground, shorted to power
Low fuel pressure or vehicle driven until it was out of fuel
Possible air leaks at the PCV valve or at the related hoses
Trouble Code: P1138
Lack of HO2S-12 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1150
Lack of HO2S-21 Switching, Fuel Trim At Rich/Lean Limit
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
EGR valve sticking, EGR diaphragm leaking, or gasket leaking
EVAP vapor recovery system has failed
Excessive fuel pressure, leaking or contaminated fuel injectors
Exhaust leaks before or near the HO2S(s) mounting location
Fuel pressure regulator is leaking or damaged
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S signal circuit open, shorted to ground, shorted to power, or the sensor has failed
Low fuel pressure or vehicle driven until it was out of fuel
Oil dipstick not seated or engine oil level too high (overfilled)
Trouble Code: P115E
Throttle Actuator Control (TAC) Throttle Body Air Flow Trim at Max Limit
Possible Causes:
Sludge around the throttle plate
Trouble Code: P1151
Lack of HO2S-21 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location or in the PCV system
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S signal circuit open, shorted to ground, shorted to power, or the sensor has failed
Low fuel pressure or vehicle driven until it was out of fuel
Trouble Code: P1152
Lack of HO2S-21 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1157
Lack of HO2S-22 Switching, HO2S Signal Low Input
Possible Causes:
Air intake system leaking, vacuum hoses leaking or damaged
Air leaks located after the MAF sensor mounting location
Base engine mechanical fault (i.e., compression, valve timing)
HO2S circuits wet or oily, corroded, or poor terminal contact
HO2S is damaged or it has failed
HO2S signal circuit open, shorted to ground, shorted to power
Low fuel pressure or vehicle driven until it was out of fuel
Possible air leaks at the PCV valve or at the related hoses
Trouble Code: P1158
Lack of HO2S-22 Switching, HO2S Signal High Input
Possible Causes:
Check air cleaner element and air cleaner housing for blockage
EVAP vapor recovery system has failed (canister full of fuel)
Fuel pressure too high, contaminated or leaking fuel injectors
HO2S is fuel contaminated, or coated with silicone or moisture
Trouble Code: P1233
Fuel System Disabled Or Offline
Possible Causes:
Inertia fuel shutoff (IFS) switch needs to be reset
FPDM ground circuit is open, or FPM circuit is open or shorted
Mark VIII: FPDM PWR circuit is open, the FPDM power supply relay VPWR circuit is opened or grounded, or power relay failed
Escort/Tracer: FPDM PWR circuit is open, or the CCRM pin 11 is open to power (B+), or the CCRM (relay) is damaged
Continental: FPDM circuit to VPWR is open, or the FPDM or the IFS is damaged
Refer to the GEM or REM controllers for related trouble codes
Trouble Code: P1234
Fuel System Disabled Or Offline
Possible Causes:
Inertia fuel shutoff (IFS) switch needs to be reset or has failed
FPDM ground circuit is open, or FPM circuit is open or shorted
Mark VIII: FPDM PWR circuit is open, the FPDM power supply relay VPWR circuit is opened or grounded, or power relay failed
Escort/Tracer: FPDM PWR circuit is open, or the CCRM pin 11 is open to power (B+), or the CCRM (relay) is damaged
Continental: FPDM circuit to VPWR is open, or the FPDM or the IFS is damaged
LS6, LS8 Models: This code indicates the PCM is not receiving data about the fuel level on the SCP data line from the Rear Electronics Module (REM). Test the REM first!
PCM has failed
Trouble Code: P1235
Fuel Pump Control Out Of Range
Possible Causes:
FP circuit is open or shorted
FPDM is damaged
PCM has failed
Trouble Code: P1236
Fuel Pump Control Out Of Range
Possible Causes:
FP circuit is open or it is shorted
FPDM is damaged or the PCM has failed
Trouble Code: P1237
Fuel Pump Secondary Circuit Malfunction
Possible Causes:
FP PWR circuit is open or shorted
FPDM fuel pump return circuit is open
Fuel pump windings are open or shorted, or the rotor is locked
FPDM is damaged
Trouble Code: P1238
Fuel Pump Secondary Circuit Malfunction
Possible Causes:
FP PWR circuit is open or shorted
FPDM fuel pump return circuit is open
Fuel pump windings are open or shorted
Fuel pump rotor is locked
FPDM is damaged
Trouble Code: P1270
Engine Speed/Vehicle Speed Limiter Fault
Possible Causes:
Excessive wheel slippage due to water, ice, mud and snow
Excessive engine speed (rpm) with the gearshift in Neutral
Vehicle driven at a high rate of speed
Trouble Code: P1288
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Engine overheating
Low coolant level* Damaged harness connector
Damaged CHT sensor
Trouble Code: P1289
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Grounded circuit in harness
Open in harness* Improper harness connections
Damaged CHT sensor
Damaged PCM
Trouble Code: P1290
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Grounded circuit in harness
Open in harness* Improper harness connections
Damaged CHT sensor
Damaged PCM
Trouble Code: P1299
Cylinder Head Temperature (CHT) Sensor
Possible Causes:
Cooling system problems
Base engine problems* Low coolant or loss of coolant
Trouble Code: P1352
Ignition Coil 2 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 2 circuit open, shorted to ground or to power
Ignition coil 2 is damaged or it has failed
PCM has failed
Trouble Code: P1353
Ignition Coil 3 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 3 circuit open, shorted to ground or to power
Ignition coil 3 is damaged or it has failed
PCM has failed
Trouble Code: P1354
Ignition Coil 4 Primary/Secondary Circuit Malfunction
Possible Causes:
Ignition START/RUN circuit is open or shorted to ground
Ignition coil driver 4 circuit open, shorted to ground or to power
Ignition coil 4 is damaged or it has failed
PCM has failed
Trouble Code: P1383
Variable Cam Timing Over-Retarded (Cylinder Bank 1)
Possible Causes:
Cam timing improperly set
Low oil pressure, VCT piston chamber not receiving any oil flow
VCT solenoid valve stuck in closed position
Camshaft advance mechanism binding (inside the VCT unit)
Trouble Code: P1400
DPFE Sensor Circuit Low Input
Possible Causes:
DPF EGR signal circuit shorted to ground
DPF EGR signal VREF circuit open
DPF EGR sensor is damaged or has failed
PCM has failed
TSB 4-3-1 contains repair information for this trouble code
Trouble Code: P1401
DPFE Sensor Circuit High Input
Possible Causes:
DPF EGR signal circuit open, or sensor ground circuit open
DPF EGR signal shorted to VREF or to power
DPF EGR sensor is damaged or has failed
PCM has failed
TSB 4-3-1 contains repair information for this trouble code
Trouble Code: P1406
DPFE Sensor Downstream Hose Off Or Plugged
Possible Causes:
Check for signs of icing in the hose, or for a restricted tube
DPF EGR sensor downstream hose is disconnected
DPF EGR sensor downstream hose is plugged (ice)
EGR tube is plugged or damaged
Trouble Code: P1408
EGR Flow Out Of Self-Test Range
Possible Causes:
EGR vacuum regulator solenoid vacuum supply problem
EVR valve stuck closed or iced up, or the flow path is restricted
EGR valve diaphragm leaking, hose is off, plugged or leaking
EGR VR solenoid open or the VPWR circuit is open
DPF EGR sensor pressure hoses connected wrong (reversed)
DPF EGR downstream hose connection leaking or plugged
EGR Orifice tube assembly is damaged
DPF EGR sensor or the EGR VR solenoid is damaged, or the PCM has failed
Trouble Code: P1409
EGR Vacuum Regulator Solenoid Circuit Malfunction
Possible Causes:
EGR VR solenoid circuit is open, or shorted to ground
EGR VR circuit is shorted to power or the VPWR circuit is open
EGR vacuum regulator solenoid is damaged or the PCM has failed
Trouble Code: P1413
Secondary AIR System Monitor Circuit Low Input
Possible Causes:
AIR solenoid control circuit is open or it is shorted to ground
AIR pump is damaged or it has failed
Solid State relay is damaged or it has failed
Solid State relay battery power circuit (B+) is open
PCM has failed
Trouble Code: P1414
Secondary AIR System Monitor Circuit High Input
Possible Causes:
AIR Monitor circuit from the pump to the PCM is open
AIR solenoid control circuit is shorted to power
Solid State relay is damaged or has failed
AIR pump ground circuit is open
AIR pump is damaged or has failed
PCM has failed
Trouble Code: P1451
EVAP System Canister Vent Solenoid Circuit Malfunction
Possible Causes:
CV solenoid circuit is open, shorted to ground or system power
CV solenoid is damaged or has failed
PCM has failed
Trouble Code: P1460
Wide Open Throttle A/C Cutout Relay Circuit Malfunction
Possible Causes:
WOT A/C Relay control circuit is open or shorted to ground
WOT A/C Relay VREF circuit is open
WOT A/C Relay is damaged or has failed
PCM has failed
Trouble Code: P1461
A/C Pressure Sensor Circuit High Input
Possible Causes:
ACP sensor circuit shorted to VREF or to power (VPWR)
ACP sensor circuit is open, or the ground circuit is open
ACP sensor is damaged or has failed
PCM has failed
Trouble Code: P1462
A/C Pressure Sensor Circuit Low Input
Possible Causes:
ACP sensor circuit shorted to VREF or to power (VPWR)
ACP sensor circuit is open, or the ground circuit is open
ACP sensor is damaged or has failed
PCM has failed
Trouble Code: P1463
A/C Pressure Sensor Insufficient Pressure Change
Possible Causes:
A/C system mechanical failure, or A/C clutch always engaged
ACP sensor signal open, or sensor ground circuit open
A/C sensor is damaged or the PCM has failed
Trouble Code: P1469
Low A/C Cycling Period
Possible Causes:
Cycling pressure switch circuit open between pin 41 (ACCS) and the PCM, or the IGN RUN circuit is open to the cycling pressure switch circuit (if applicable)
Mechanical A/C system concern (i.e., low refrigerant charge, damaged A/C switch)
Trouble Code: P1474
Hydraulic Cooling Fan Primary Circuit Malfunction
Possible Causes:
FC circuit is open or shorted to power
LFC circuit is open or shorted to power (CCRM models)
FC or LFC relay VPWR circuit is open (Start/Run on Probe)
Trouble Code: P1479
High Fan Control Primary Circuit Malfunction
Possible Causes:
HFC circuit is open
HFC circuit is shorted to ground
HFC relay power circuit (VPWR) is open
High speed FC relay is damaged or it has failed
PCM has failed
Trouble Code: P1500
VSS Signal Or POSM Signal Intermittent
Possible Causes:
VSS pins damaged, loose or pushed in at the connector
VSS circuit open or shorted in the wiring harness (insulation)
VSS wiring harness routing incorrect or VSS mounting incorrect
TSB 01-21-13 contains a repair procedure for this trouble code
Trouble Code: P1501
VSS Signal Out Of Self-Test Range
Possible Causes:
VSS signal is noisy due to Radio Frequency Interference/ Electro-Magnetic Interference (RFI/EMI) from outside devices (ignition wires, charging circuit or aftermarket devices)
Trouble Code: P1502
VSS Signal Intermittent
Possible Causes:
VSS+ or VSS- harness circuit is open
TCSS signal or TCSS signal return harness circuit is open
VSS harness circuit, TCSS harness circuit is shorted to ground
VSS harness circuit, CSS harness circuit is shorted to power
VSS circuit open between the PCM and related control module
VSS or TCSS, or wheel speed sensors circuits are damaged
Modules connected to VSC/VSS harness circuits are damaged
Mechanical drive mechanism for the VSS or TCSS is damaged
Trouble Code: P1504
Idle Air Control System Malfunction
Possible Causes:
Base engine vacuum leaks present
Damaged or loose IAC tubes
Loose air cleaner housing
Throttle body leak
EGR valve or gasket leak
Vacuum hose leaks
Trouble Code: P1506
Idle Air Control Overspeed Error
Possible Causes:
Base engine vacuum leaks present
EVAP system has a problem
IAC circuit shorted to ground
IAC valve is stuck open, or it is damaged
Throttle body or throttle plate is contaminated or very dirty
Trouble Code: P1507
Idle Air Control Underspeed Error
Possible Causes:
Air inlet is plugged or the air filter element is severely clogged
IAC circuit is open, or shorted to the VPWR circuit
IAC circuit VPWR circuit is open
IAC solenoid is damaged or has failed
Throttle body or throttle plate is contaminated or very dirty
Trouble Code: P1518
Intake Manifold Runner Control Malfunction (Stuck Open)
Possible Causes:
IMRC monitor signal circuit shorted to power ground
IMRC Monitor signal circuit shorted to signal ground (return)
IMRC actuator is damaged or has failed
PCM has failed
Trouble Code: P1519
Intake Manifold Runner Control Stuck Closed
Possible Causes:
IMRC monitor signal circuit shorted to power ground
IMRC Monitor signal circuit shorted to signal ground (return)
IMRC actuator is damaged or has failed (e.g., there may be a small leak in the vacuum diaphragm of the actuator)
PCM has failed
Trouble Code: P1520
Intake Manifold Runner Control Input Error
Possible Causes:
IMRC control circuit is open or shorted to ground
IMRC Monitor VREF circuit is open
IMRC is damaged or the PCM has failed
Trouble Code: P1582
Electronic Throttle Monitor Data Available
Possible Causes:
n/a
Trouble Code: P1605
PCM Keep Alive Memory Test Error
Possible Causes:
Battery terminals loose or corroded (high resistance in circuit)
Keep Alive Memory circuit to PCM interrupted or open
Reprogramming function not performed
PCM has failed
Trouble Code: P1635
Tire Axle/Ratio Out Of Acceptable Range
Possible Causes:
Incorrect tire size or Incorrect axle ratio
Incorrect VID configuration parameters
PCM need to be reprogrammed
TSB 02-23-4 contains repair information for this trouble code
Trouble Code: P1636
Inductive Signature Chip Communication Error
Possible Causes:
PCM has failed and needs to be replaced
Trouble Code: P1639
Vehicle ID Block Not Programmed Or Is Corrupt
Possible Causes:
PCM may not be the correct application
PCM may need to be reprogrammed
VID configuration may not be correct
TSB 02-23-4 contains repair information for this trouble code
Trouble Code: P1640
Powertrain DTCs Available in Another Module
Possible Causes:
DTCs stored in a secondary module, which requested the MIL to be turned on.
Trouble Code: P1650
Power Steering Pressure Switch Circuit Malfunction
Possible Causes:
Steering wheel must be turned during the KOER Self-Test
PSP switch/shorting bar is damaged
PSP signal circuit is open or shorted to ground
PSP switch ground (return) circuit is open
PCM has failed
Trouble Code: P1651
Power Steering Pressure Switch Circuit Malfunction
Possible Causes:
Steering wheel must be turned during the KOER Self-Test
PSP switch/shorting bar is damaged
PSP signal circuit is open or shorted to ground
PSP switch ground (return) circuit is open
PCM has failed
Trouble Code: P1703
Brake Switch Circuit Out of Self-Test Range
Possible Causes:
BPP switch circuit open or shorted
Brake Switch is misadjusted, damaged or has failed
Stop lamp circuits open or shorted
Malfunction in the module(s) connected to BPP circuit (i.e., the Rear Electronic Module on Windstar and LS, or the Lighting Control Module on the Continental and Town Car)
PCM has failed
Trouble Code: P1709
PNP Switch Out Of Self-Test Range
Possible Causes:
PNP switch ground circuit is open
PNP switch circuit short to power (VPWR)
PNP switch is damaged or has failed
PCM has failed
Trouble Code: P1712
TFT Sensor Circuit Low Input
Possible Causes:
n/a
Trouble Code: P1729
4 x 4 Low Switch Circuit Malfunction
Possible Causes:
Speedometer out of calibration
4x4L wiring harness is open or shorted, 4x4L switch is damaged or has failed
Electronic Shift Control Module is damaged or has failed, or the PCM has failed
Trouble Code: P1741
TCC Engagement Error
Possible Causes:
n/a
Trouble Code: P1742
TCC Solenoid Failed On (Electrical Or Mechanical Fault)
Possible Causes:
n/a
Trouble Code: P1744
TCC System Mechanically Stuck In Off Position
Possible Causes:
n/a
Trouble Code: P1746
EPC Solenoid Circuit Malfunction
Possible Causes:
n/a
Trouble Code: P1747
A/T EPC Solenoid Circuit Malfunction
Possible Causes:
n/a
Trouble Code: P1749
A/T EPC Solenoid Failed Low
Possible Causes:
n/a
Trouble Code: P1751
A/T Shift Solenoid 1 Performance
Possible Causes:
n/a
Trouble Code: P1754
A/T Shift Solenoid 1 Performance Conditions
Possible Causes:
n/a
Trouble Code: P1756
A/T Shift Solenoid 2 Performance
Possible Causes:
n/a
Trouble Code: P1761
A/T Shift Solenoid 3 Performance
Possible Causes:
n/a
Trouble Code: P1780
Transmission Control Switch Out of Self-Test Range
Possible Causes:
TCS circuit open or shorted in the wiring harness
TCS not cycled during the self-test
TCS is damaged, or the PCM has failed
Trouble Code: P1781
4 x 4 Low Switch Out Of Self-Test Range
Possible Causes:
4x4L switch circuit is open or shorted in the wiring harness
Electronic Shift Module is damaged or has failed
PCM has failed
Trouble Code: P1784
Transmission System First Or Reverse Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1785
Transmission System First Or Second Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1786
Transmission System Second Or Third Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1787
Transmission System Third Or Fourth Gear Malfunction
Possible Causes:
n/a
Trouble Code: P1900
Transmission System Malfunction
Possible Causes:
Harness connector not properly seated
Harness intermittently shorted or open
Harness connector damaged
OSS sensor damaged, or not installed properly
Trouble Code: P1901
Transmission System Malfunction
Possible Causes:
Harness connector not properly seated
Harness intermittently shorted or open
Harness connector damaged
TSS sensor damaged or not installed properly
Trouble Code: P1910
Reverse Lamp Control Circuit Condition
Possible Causes:
Open in the circuit
Short to ground / voltage
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