Monday, March 12, 2012

Detailed List Of Ford OBD Error codes?

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


FOR MORE HELP GO TO: ---

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