HHR 2006-2008

2.4L L4 VIN P Std 5

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Trouble Code: P0454



Fuel Tank Pressure (FTP) Sensor Intermittent

Possible Causes:

P0451 and P0454



A restriction in the EVAP canister or vent lines could prevent fuel vapor pressure from bleeding off fast enough. If the vent system cannot bleed off pressure fast enough, the re-zero procedure may not complete successfully, which could cause this code to set.
 
Ensure that the reference port on the FTP sensor is unobstructed.
 
An FTP sensor that is skewed or does not have a linear transition from low to high may cause this code to set. Scan tool output controls, snapshot, and plot functions can help detect erratic sensor response. To test the sensor signal under vacuum conditions, use the Quick Snapshot and the Purge/Seal functions to capture data while commanding purge to 20 percent, then plot the data to look for erratic sensor operation. A similar test can be done for the pressure side of the sensor operation by applying pressure with the J 41413-200 while taking a snapshot.
 

Trouble Code: P0454



Evaporative Emission (EVAP) System Large Leak Detected

Possible Causes:



Inspect for a damaged fuel filler neck seal surface.
 
Blockage or restriction in the EVAP purge solenoid valve, purge pipe, EVAP canister, or vapor pipe,
 
Inspect for a loose, missing, damaged, or incorrect fuel fill cap
 
FTP sensor has failed
 

Trouble Code: P0455



Evaporative Emission (EVAP) System Large Leak

Possible Causes:



A loose, missing, incorrect, or damaged fuel fill cap may cause this DTC to set.
 
To help locate intermittent leaks, use the J 41413-200 Evaporative Emission System Tester (EEST) to introduce smoke into the EVAP system. Move all EVAP components while observing smoke with theJ 41413-SPT High Intensity White Light . Introducing smoke in 15-second intervals will allow less pressure into the EVAP system. When the system is less pressurized, the smoke will sometimes escape in a more condensed manner.
 
To improve the visibility of the smoke exiting the EVAP system, observe the suspected leak area from different angles with the J 41413-SPT .
 
Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.
 
For intermittent conditions, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0455



Evaporative Emission (EVAP) System Large Leak

Possible Causes:



A loose, missing, incorrect, or damaged fuel fill cap may cause this DTC to set.
 
To help locate intermittent leaks, use the J 41413-200 Evaporative Emission System Tester (EEST) to introduce smoke into the EVAP system. Move all EVAP components while observing smoke with theJ 41413-SPT High Intensity White Light . Introducing smoke in 15-second intervals will allow less pressure into the EVAP system. When the system is less pressurized, the smoke will sometimes escape in a more condensed manner.
 
To improve the visibility of the smoke exiting the EVAP system, observe the suspected leak area from different angles with the J 41413-SPT .
 
Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.
 
A condition may exist where a leak in the EVAP system only exists under a vacuum condition. By using the scan tool Purge/Seal function to create a vacuum, seal the system and observe the FTP parameter for the vacuum decay, this type of leak may be detected.
 
If a small leak is difficult to find, it may be necessary to remove the EVAP components and leak test them one at a time.
 

Trouble Code: P0455



Evaporative Emissions (EVAP) System Very Small Leak Detected

Possible Causes:



Damaged EVAP purge solenoid
 
Damaged EVAP vent valve or EVAP canister
 
Incorrectly routed, kinked, or damaged EVAP pipes and hoses
 

Trouble Code: P0456



Evaporative Emission (EVAP) Purge Solenoid Control Circuit Low Voltage

Possible Causes:



EVAP purge solenoid control circuit for a shorted to ground.
 
EVAP purge solenoid shorted to voltage or an open/high resistance
 
Faulty EVAP purge solenoid.
 
ECM has failed
 

Trouble Code: P0458



Evaporative Emission (EVAP) Purge Solenoid Control Circuit High Voltage

Possible Causes:



EVAP purge solenoid control circuit for a shorted to ground.
 
EVAP purge solenoid shorted to voltage or an open/high resistance
 
Faulty EVAP purge solenoid.
 
ECM has failed
 

Trouble Code: P0459



Fuel Level Sensor High Input

Possible Causes:



Fuel level sensor signal circuit is shorted to system power
 
Fuel level sensor ground circuit is open
 
Fuel level sender is damaged, binding or not aligned properly
 
ECM has failed
 

Trouble Code: P0461



Fuel Level Sensor Circuit Performance

Trouble Code: P0462



Fuel Level Sensor Circuit Low Voltage

Trouble Code: P0463



Fuel Level Sensor Circuit High Voltage

Trouble Code: P0464



Fuel Level Sensor 1 Circuit Intermittent

Possible Causes:



Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate the DTC, the information in the Failure Records can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can help determine how many ignition cycles that the diagnostic test reported a pass and/or a fail.
 

Trouble Code: P0480



Cooling Fan Relay Control Circuit

Trouble Code: P0496



Evaporative Emission System Flow During Non-Purge

Trouble Code: P0502



Vehicle Speed Sensor (VSS) Circuit Low Voltage

Possible Causes:



Ensure the VSS is correctly torqued to the transmission housing.
 

Trouble Code: P0503



Vehicle Speed Sensor (VSS) Circuit Intermittent

Possible Causes:



Ensure the VSS is correctly torqued to the transmission housing.
 

Trouble Code: P0506



Idle Speed Low

Trouble Code: P0507



Idle Speed High

Trouble Code: P050A



Cold Start Idle Air Control (IAC) System Performance

Possible Causes:



Air inlet duct is collapsed, loose or air filter element is clogged
 
A parasitic load on the engine
 
Base engine problem (i.e., compression or misfire condition)
 
MAF sensor is dirty, out-of-calibration or it is "skewed"
 
Throttle plate, throttle shaft or linkage is damaged or sticking
 
ECM has failed
 

Trouble Code: P0520



Engine Oil Pressure (EOP) Sensor Circuit

Possible Causes:



Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate the DTC, the information in the Failure Records can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can help determine how many ignition cycles that the diagnostic test reported a pass and/or a fail.
 

Trouble Code: P0532



Air Conditioning (A/C) Pressure Sensor Circuit Low Voltage

Possible Causes:

Test the following conditions:



Visually inspect the sensor for contamination or damage.
 
Inspect for the following that may affect the sensors accuracy:

A malfunction within the refrigerant system causing high pressure
 
Visually inspect the A/C components and lines for damage.
 

 

Trouble Code: P0533



Air Conditioning (A/C) Pressure Sensor Circuit High Voltage

Possible Causes:

Test the following conditions:



Visually inspect the sensor for contamination or damage.
 
Inspect for the following that may affect the sensors accuracy:

A malfunction within the refrigerant system causing high pressure
 
Visually inspect the A/C components and lines for damage.
 

 

Trouble Code: P0562



System Voltage Low

Possible Causes:



Observe the driver information center (DIC) messaging that would indicate the electrical system requires service.
 
Inspect for loose or damaged terminals at the generator.
 
Inspect for loose or worn generator drive belt.
 
Use the scan tool in order to inspect all other modules for voltage related DTCs.
 
Running the engine with a battery charger attached may cause DTC P0563 to set.
 
Inspect the charging circuit for high resistance.
 
Inspect the vehicle battery for open or sulfated cells.
 

Trouble Code: P0563



System Voltage High

Possible Causes:



Observe the driver information center (DIC) messaging that would indicate the electrical system requires service.
 
Inspect for loose or damaged terminals at the generator.
 
Inspect for loose or worn generator drive belt.
 
Use the scan tool in order to inspect all other modules for voltage related DTCs.
 
Running the engine with a battery charger attached may cause DTC P0563 to set.
 
Inspect the charging circuit for high resistance.
 
Inspect the vehicle battery for open or sulfated cells.
 

Trouble Code: P0575



Cruise Control Switch Signal Circuit

Possible Causes:



This DTC may be stored as a history DTC without affecting the operation of the BCM. If stored only as a history DTC and not retrieved as a current DTC, do not replace the BCM or ECM.
 
Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate the DTC, the information in the Failure Records can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can help determine how many ignition cycles that the diagnostic test reported a pass and/or a fail.
 

Trouble Code: P0601



Control Module Read Only Memory (ROM)

Trouble Code: P0601



Control Module Torque Performance

Possible Causes:



Voltage and ground inputs to the ECM
 
High resistance, short or open condition to the ECM
 
ECM is not properly programmed
 
ECM has failed
 

Trouble Code: P0601A



Control Module Torque Calculation Performance

Possible Causes:



Voltage and ground inputs to the ECM
 
High resistance, short or open condition to the ECM
 
ECM is not properly programmed
 
ECM has failed
 

Trouble Code: P0601B



Control Module Engine Speed Performance

Possible Causes:



Voltage and ground inputs to the ECM
 
High resistance, short or open condition to the ECM
 
ECM is not properly programmed
 
ECM has failed
 

Trouble Code: P0601C



Control Module Not Programmed

Possible Causes:



Check the voltage and ground inputs to the ECM for a, short, open or high resistance
 
ECM has failed
 

Trouble Code: P0602



Control Module Not Programmed

Trouble Code: P0602



Control Module Long Term Memory Reset

Possible Causes:



Check the voltage and ground inputs to the ECM for a, short, open or high resistance
 
ECM has failed
 

Trouble Code: P0603



Control Module Long Term Memory Reset

Trouble Code: P0603



Control Module Random Access Memory (RAM)

Possible Causes:



Check the voltage and ground inputs to the ECM for a, short, open or high resistance
 
ECM has failed
 

Trouble Code: P0604



Control Module Random Access Memory (RAM)

Trouble Code: P0604



Control Module Programming Read Only Memory (ROM)

Possible Causes:



The ECM must be replaced to correct this problem. A new ECM must be programmed with the correct software/calibration.
 

Trouble Code: P0605



Control Module Programming Read Only Memory

Trouble Code: P0606



Control Module Internal Performance

Trouble Code: P0606



Control Module Performance

Possible Causes:



Check the voltage and ground inputs to the ECM for a, short, open or high resistance
 
ECM has failed
 

Trouble Code: P0607



Control Module Performance

 
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