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TroubleCodes (90 of 130)

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2.5L V6 - Auto



Trouble Code: P0440

EVAP System Malfunction

Trouble Code Conditions: Engine started, ECT sensor signal less than158ºF at startup, IAT sensor signal more than 9.5ºF, system voltage over 10.0 volts engine runtime 15-20 minutes at cruise speed, then returned to idle speed, VSS indicating 0 mph, load value 2.2 ms, canister load factor less than 4.0, fuel tank pressure less than 0.5" Hg, then after the Idle Control system and Fuel Trim had stabilized, the PCM detected a fuel vapor leak (as small as 0.040") in the EVAP system during the EVAP Leak Test.

Possible Causes:



Fuel filler cap damaged, cross-threaded or loosely installed
 
Small hoses or cuts present in the EVAP vapor hoses/lines
 
EVAP purge valve is damaged or has failed
 

Trouble Code: P0441

EVAP System Malfunction

Trouble Code Conditions: ECT sensor signal less than158°F at startup, IAT sensor signal more than 9.05°F, system voltage more than 10.9 volts engine runtime 15-20 minutes at cruise speed, then returned to idle speed, VSS indicating 0 mph, load value 2.2 ms, canister load factor less than 4.0, fuel tank pressure less than 0.5" Hg, then after the Idle Control system and Fuel Trim stabilized, the PCM detected a continuous purge condition in the EVAP system during the Purge flow test.

Possible Causes:



Small hoses or cuts present in the EVAP vapor hoses/lines
 
EVAP canister purge solenoid is damaged or is stuck open
 
PCM has failed
 

Trouble Code: P0442

EVAP System Small Leak (0.040") Detected

Trouble Code Conditions: ECT sensor signal less than158°F at startup, IAT sensor signal more than 9.05°F, system voltage more than 10.9 volts engine runtime 15-20 minutes at cruise speed, then returned to idle speed, VSS indicating 0 mph, load value 2.2 ms, canister load factor less than 4.0, fuel tank pressure less than 0.5" Hg, then after the Idle Control system and Fuel Trim had stabilized, the PCM detected a fuel vapor leak (as small as 0.040") in the EVAP system during the EVAP Leak Test.

Possible Causes:



Fuel filler cap damaged, cross-threaded or loosely installed
 
Small leaks or cuts present in the EVAP vapor hoses/lines
 
EVAP purge valve is damaged or has failed
 
PCM has failed
 

Trouble Code: P0443

EVAP Purge Control Valve Circuit Malfunction

Trouble Code Conditions: Key on or engine running and the PCM detected an unexpected voltage condition on the EVAP Purge Control solenoid circuit.

Possible Causes:



Injector Fuse (B+) open to the Purge solenoid power circuit
 
Purge control solenoid control circuit is open or grounded
 
Purge control solenoid circuit is shorted to system power (B+)
 
Purge control solenoid is damaged or has failed
 
PCM has failed (Purge solenoid driver may be open or shorted)
 

Trouble Code: P0445

EVAP Vent Control Circuit Malfunction

Trouble Code Conditions: Key on or engine running and the PCM detected an unexpected voltage condition on the EVAP Vent Control solenoid circuit.

Possible Causes:



Vent control solenoid power circuit from Main Relay is open
 
Vent control solenoid control circuit is open or grounded
 
Vent control solenoid circuit is shorted to system power (B+)
 
Vent control solenoid is damaged or has failed
 
PCM has failed (Vent solenoid driver may be open or shorted)
 

Trouble Code: P0446

EVAP Vent Control Circuit Malfunction

Trouble Code Conditions: Key on or engine running and the PCM detected an unexpected voltage condition on the EVAP Vent Control solenoid circuit.

Possible Causes:



Injector Fuse (B+) open to the Vent solenoid power circuit
 
Vent control solenoid control circuit is open or grounded
 
Vent control solenoid circuit is shorted to system power (B+)
 
Vent control solenoid is damaged or has failed
 
PCM has failed (Vent solenoid driver may be open or shorted)
 

Trouble Code: P0451

EVAP Pressure Sensor Performance

Trouble Code Conditions: Engine at idle speed with the vehicle speed indicating 0 mph, then with the EVAP Vent Control solenoid commanded "on", the PCM detected the FTP sensor signal variation was less than 15 mv.

Possible Causes:



FTP sensor signal or ground circuit has high resistance
 
FTP sensor is damaged or out of calibration
 
EVAP canister close valve (CCV) is stuck closed
 
PCM has failed
 

Trouble Code: P0452

EVAP Pressure Sensor Circuit Low Input

Trouble Code Conditions: Key on or engine running and the PCM detected the Fuel Tank Pressure (FTP) sensor signal was less than 0.14 volt during the test.

Possible Causes:



FTP sensor signal circuit is shorted to ground
 
FTP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0453

EVAP Pressure Sensor Circuit High Input

Trouble Code Conditions: Key on or engine running and the PCM detected the Fuel Tank Pressure (FTP) sensor signal was more than 4.90 volts during the test.

Possible Causes:



FTP sensor signal circuit is open
 
FTP sensor ground circuit is open
 
FTP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0455

EVAP System Large Leak Detected

Trouble Code Conditions: ECT input at 38-95°F at startup, engine running at a steady throttle at over 6.2 mph for over 2 minutes, and the PCM detected the FTP sensor signal indicated more than -15 kPa in the EVAP Leak test.

Possible Causes:



Fuel filler cap damaged, cross-threaded or loosely installed
 
Small leaks or cuts present in the EVAP vapor hoses/lines
 
EVAP purge valve is damaged or has failed
 
PCM has failed
 

Trouble Code: P0456

EVAP System Very Small Leak (0.020") Detected

Trouble Code Conditions: ECT input at 38-95°F at startup, vehicle driven at a steady speed of over 6.2 mph for 2 minutes, and then the PCM detected a very small leak (less than 0.020") in the EVAP system during the Leak test.

Possible Causes:



Fuel filler is damaged, cross-threaded, loose or missing
 
Fuel filler pipe is damaged, or a fuel vapor hose is leaking
 
Rollover valve or ORVR (valve) had failed allowing fuel in lines
 
Canister close valve clogged or stuck in open or closed position
 
Purge solenoid valve is damaged or installed improperly
 
FTP sensor is damaged or has failed
 
Leaks in the charcoal canister, or at the fuel tank seals
 

Trouble Code: P0460

Fuel Level Sensor Circuit Malfunction

Trouble Code Conditions: Engine running and the PCM detected the Fuel Level sensor input did not match the fuel level during the CCM test.

Possible Causes:



Empty fuel tank, or the fuel level indicator mechanism is stuck
 
Fuel gauge incorrectly installed
 
Fuel level indicator signal circuit is open or shorted to ground
 
Fuel tank has been overfilled, or fuel level indicator is damaged
 
PCM has failed
 

Trouble Code: P0462

Fuel Level Sensor Input Low (Sticking)

Trouble Code Conditions: Key on or engine running system voltage more than 10 volts, and the PCM detected the fuel level sensing unit signal was less than 0.2 volt.

Possible Causes:



Fuel level sending unit signal circuit shorted to VREF
 
Fuel level sending unit signal circuit shorted to system power
 
Fuel level sensing unit is damaged or the fuel tank is damaged
 
BCM or PCM has failed
 

Trouble Code: P0463

Fuel Level Sensor Input High (Sticking)

Trouble Code Conditions: Key on or engine running system voltage more than 10 volts, and the PCM detected the fuel level sensing unit signal was more than 4.5 volts.

Possible Causes:



Fuel level sending unit signal circuit shorted to VREF
 
Fuel level sending unit signal circuit shorted to system power
 
Fuel level sensing unit is damaged or the fuel tank is damaged
 
BCM or PCM has failed
 

Trouble Code: P0500

Vehicle Speed Sensor Circuit Malfunction

Trouble Code Conditions: Engine speed over 3000 rpm with Closed Throttle switch indicating "off", engine load over 70%, and the PCM detected the VSS signal did not change voltage or was missing for 30 seconds.

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS signal circuit is shorted to VREF or to system power (B+)
 
VSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P0501

Vehicle Speed Sensor Performance

Trouble Code Conditions: Engine running in gear at high speed and lover for over 1 second, and the PCM did not detect any VSS signals.

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS signal circuit is shorted to VREF or to system power (B+)
 
VSS is damaged or has failed
 
PCM has failed
 

Trouble Code: P0506

Idle Speed Lower Than Expected

Trouble Code Conditions: Engine running at idle speed while in closed loop, and the PCM detected the Actual idle speed was more than 100 rpm below the Target idle speed during the CCM test.

Possible Causes:



High resistance between the main relay and IAC valve
 
High resistance between PCM and IAC valve control circuits
 
IAC valve is damaged or has failed
 
The throttle plate is carbon fouled (it may need to be cleaned)
 

Trouble Code: P0507

Idle Speed Higher Than Expected

Trouble Code Conditions: Engine running at idle speed while in closed loop, and the PCM detected the Actual idle speed was more than 200 rpm above the Target idle speed during the CCM test.

Possible Causes:



High resistance between the main relay and IAC valve
 
High resistance between PCM and IAC valve control circuits
 
IAC valve is damaged or has failed
 
Intake air leak located below the throttle plate assembly
 

Trouble Code: P0510

Closed Throttle Position Switch Circuit Malfunction

Trouble Code Conditions: Engine running and the PCM detected the Closed Throttle Position switch status did not change from "off" to "on" during normal driving.

Possible Causes:



Closed throttle switch signal circuit open or shorted to ground
 
Closed throttle switch signal circuit shorted to VREF or power
 
Closed throttle switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0560

Battery Backup Line Circuit Malfunction

Trouble Code Conditions: Engine runtime over 4 minutes and the PCM did not detect any system voltage on the Battery Backup circuit for 5 seconds.

Possible Causes:



Battery backup circuit to the PCM is open
 
Battery backup fuse to the PCM is open or missing
 
Battery backup circuit to the PCM has high resistance
 
PCM has failed
 

Trouble Code: P0562

System Voltage Low Input

Trouble Code Conditions: Engine runtime over 4 minutes, and the PCM detected the system voltage was less than 8.0 volts, condition met for 5 seconds. Note: If the Battery Backup circuit is open, the vehicle will not run.

Possible Causes:



Charging system problem (charging voltage too low)
 
Battery backup circuit to the PCM has high resistance
 
Backup voltage circuit to the PCM open (intermittent fault)
 
PCM has failed
 

Trouble Code: P0563

System Voltage High Input

Trouble Code Conditions: Engine runtime over 4 minutes, and the PCM detected the system voltage was more than 17.0 volts, condition met for 5 seconds. Note: If the Battery Backup circuit is open, the vehicle will not run.

Possible Causes:



Charging system problem (charging voltage too high)
 
Backup voltage circuit to the PCM open (intermittent fault)
 
PCM has failed
 

Trouble Code: P0601

PCM or TCM Internal Random Check Sum Error

Trouble Code Conditions: Key on or engine running and the PCM or the TCM detected that a Random Check Sum Error was present.

Possible Causes:



Poor terminal contact at the ECM ISC Backup Voltage circuit
 
PCM or TCM has an internal problem or has failed
 

Trouble Code: P0604

PCM or TCM Internal Random Access Memory Error

Trouble Code Conditions: Key on or engine running and the PCM or TCM detected an Internal Random Access Memory (RAM) error was present.

Possible Causes:



Poor terminal contact at the ECM Backup Voltage circuit
 
PCM or TCM has an internal problem or has failed
 

Trouble Code: P0650

Malfunction Indicator Lamp Circuit Malfunction

Trouble Code Conditions: Key on or engine running and the PCM detected an unexpected voltage condition on the Malfunction Indicator Lamp (MIL) circuit.

Possible Causes:



MIL control circuit open
 
MIL control circuit shorted to ground
 
MIL "bulb" is damaged or missing
 
PCM has failed (MIL control "driver" may be open or shorted)
 

Trouble Code: P0705

Transmission Range Switch Circuit Malfunction

Trouble Code Conditions: Engine running with VSS inputs received, and the PCM detected invalid signals or multiple TR switch inputs with the gearshift in drive. Note: If DTC P1500 is also set, check the Meter Fuse and circuit.

Possible Causes:



TR switch signal circuit is open or shorted to ground
 
TR switch signal circuit is shorted to VREF or system power
 
TR switch is damaged or has failed
 
PCM has failed
 
TSB 2TD007 (12/01) contains information related to this code
 

Trouble Code: P0712

Transmission Fluid Temperature Low Input

Trouble Code Conditions: Key on or engine running and the PCM detected the TFT sensor signal indicated less than 0.49 volt 300°F) for more than 1 second. Note: The TFT sensor signal at 68°F is 4.0 volts, and at 266°F it is 1.5 volts.

Possible Causes:



TFT sensor signal circuit shorted to ground (sensor to TCM)
 
TFT sensor signal circuit shorted to ground (TCM to PCM)
 
TFT sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0713

Transmission Fluid Temperature High Input

Trouble Code Conditions: Key on or engine running and the PCM detected the TFT sensor signal indicated more than 4.57 volts (-40°F) during the CCM test period. Note: The TFT sensor signal at 68°F is 4.0 volts, and at 266°F it is 1.5 volts.

Possible Causes:



TFT sensor signal circuit is open (sensor circuit to the TCM)
 
TFT sensor signal circuit is open (TCM circuit to the PCM)
 
TFT sensor is damaged or has failed
 
PCM is damaged
 

Trouble Code: P0715

Input/Turbine Speed Sensor Circuit Malfunction

Trouble Code Conditions: Vehicle driven to a speed of over 15.5 mph with the engine speed over 1500 rpm in 3rd or 4th gear, and the PCM did not detect any Input/Turbine speed sensor signals for 5 seconds.

Possible Causes:



Input/Turbine speed sensor signal circuit open or shorted
 
Input/Turbine speed sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0716

Input/Turbine Speed Sensor Performance

Trouble Code Conditions: Vehicle drive to a speed of over 25 mph, gear ratio indicating the vehicle is in Drive, 2nd or 1st gear, and the PCM did not detect any Input/Turbine Speed sensor signals, or that the Input/Turbine sensor signals indicated less than 98 rpm during the CCM test.

Possible Causes:



Input/Turbine speed sensor signal circuit open or shorted
 
Input/Turbine speed sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0717

Input/Turbine Speed Sensor No Signal

Trouble Code Conditions: Vehicle drive to a speed of over 25 mph, gear ratio indicating the vehicle is in Drive, 2nd or 1st gear, and the PCM detected that the Input/Turbine Speed sensor signal indicated less than 98 rpm.

Possible Causes:



Input/Turbine speed sensor signal circuit open or shorted
 
Input/Turbine speed sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0731

TCM Incorrect First Gear Ratio

Trouble Code Conditions: Vehicle driven at 12-32 mph in 3rd gear, shift solenoids 'A', 'B' and 'C', input/turbine speed sensor and TFT sensor inputs all indicating okay, and the PCM detected the 1st gear ratio was too high.

Possible Causes:



ATF fluid level too low or line pressure low
 
Control valve stuck or solenoid valve is damaged or has failed
 
Forward clutch, 3-4 brake band or 1-way clutch No. 1 slippage
 
PCM has failed
 
TSB 2TD007 (12/01) contains information related to this code
 

Trouble Code: P0732

TCM Incorrect Second Gear Ratio

Trouble Code Conditions: Vehicle driven at 17-60 mph in 2nd gear, shift solenoids 'A', 'B' and 'C', input/turbine speed sensor and TFT sensor inputs all indicating okay, and the PCM detected the 2nd gear ratio was too high.

Possible Causes:



ATF fluid level too low or line pressure low
 
Control valve stuck or solenoid valve is damaged or has failed
 
Forward clutch, 2-4 brake band or 1-way clutch No. 1 slippage
 
PCM has failed
 
TSB 2TD004 (8/00) contains information related to this code
 
TSB 2TD007 (12/01) contains information related to this code
 
TSB 3TD008 (3/02) contains information related to this code
 

Trouble Code: P0733

TCM Third Gear Incorrect Ratio

Trouble Code Conditions: Vehicle driven at 19-32 mph in 3rd gear, shift solenoids 'A', 'B' and 'C', input/turbine speed sensor and TFT sensor inputs all indicating okay, and the PCM detected the 3rd gear ratio was too high.

Possible Causes:



ATF fluid level too low or line pressure low
 
Control valve stuck or solenoid valve is damaged or has failed
 
Forward clutch, 3-4 brake band or 1-way clutch No. 1 slippage
 
PCM has failed
 
TSB 2TD004 (8/00) contains information related to this code
 
TSB 2TD007 (12/01) contains information related to this code
 
TSB 3TD008 (3/02) contains information related to this code
 

Trouble Code: P0734

TCM Fourth Gear Incorrect Ratio

Trouble Code Conditions: Vehicle driven at 44-65 mph in 4th gear, shift solenoids 'A', 'B' and 'C', input/turbine speed sensor and TFT sensor inputs all indicating okay, and the PCM detected the 4th gear ratio was too high.

Possible Causes:



ATF fluid level too low or line pressure low
 
Control valve stuck or solenoid valve is damaged or has failed
 
2-4 brake band or 3-4 clutch slippage
 
PCM has failed
 
TSB 2TD004 (8/00) contains information related to this code
 
TSB 2TD007 (12/01) contains information related to this code
 
TSB 3TD008 (3/02) contains information related to this code
 

Trouble Code: P0740

TCC System Malfunction

Trouble Code Conditions: Vehicle driven at 44-65 mph in 4th gear in TCC, shift solenoids 'A', 'B' and 'C', input/turbine speed sensor and TFT sensor inputs all okay, and the PCM detected the difference in the number of engine revolutions and reverse/forward drum revolutions was over 100 rpm.

Possible Causes:



ATF fluid level too low or line pressure low
 
Torque converter clutch slippage excessive
 
Control valve stuck or TCC solenoid is damaged or has failed
 
PCM has failed
 
TSB 2TD004 (8/00) contains information related to this code
 
TSB 2TD005 (11/00) contains information related to this code
 
TSB 2TD007 (12/01) contains information related to this code
 
TSB 3TD008 (3/02) contains information related to this code
 

Trouble Code: P0743

TCC Solenoid Circuit Malfunction

Trouble Code Conditions: Engine running in gear with VSS inputs received, and the PCM detected an unexpected voltage condition on the TCC circuit.

Possible Causes:



TCC solenoid control circuit is open or shorted to ground
 
TCC solenoid control circuit is shorted to system power (B+)
 
TCC solenoid is damaged or has failed
 
PCM or TCM has failed
 

Trouble Code: P0748

TCM Linear Solenoid Circuit Malfunction

Trouble Code Conditions: Engine running in gear with VSS inputs received, and the PCM detected an unexpected voltage on the Linear solenoid circuit.

Possible Causes:



Linear solenoid control circuit open or shorted to ground
 
Linear solenoid control circuit shorted to system power (B+)
 
Linear solenoid is damaged or has failed
 
PCM or TCM has failed
 

Trouble Code: P0753

TCM Shift Solenoid 'A' Circuit Malfunction

Trouble Code Conditions: Engine running in gear, VSS inputs received, and PCM detected an unexpected voltage condition on the SSA circuit during the test.

Possible Causes:



SSA control circuit open or shorted to ground
 
SSA control circuit shorted to system power (B+)
 
SSA is damaged or has failed
 
PCM or TCM has failed
 
TSB 3TD008 (3/02) contains information related to this code
 

Trouble Code: P0758

TCM Shift Solenoid 'B' Circuit Malfunction

Trouble Code Conditions: Engine running in gear, VSS inputs received, and PCM detected an open or shorted condition in the SSB circuit during the CCM test.

Possible Causes:



SSB control circuit open or shorted to ground
 
SSB control circuit shorted to system power (B+)
 
SSB is damaged or has failed
 
PCM or TCM has failed
 
TSB 3TD008 (3/02) contains information related to this code
 

 
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