HHR 2006-2008

2.2L L4 VIN D Auto 4

Print

Trouble Code: P0325



Knock Sensor Circuit Malfunction

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (not mounted properly)
 
Knock sensor is damaged or has failed
 
On modules with an integrated sensor, clear the codes and retest for codes. If the same code resets, the ECM has failed.
 

Trouble Code: P0325



Knock Sensor Circuit Malfunction

Possible Causes:



Knock sensor signal circuit is open, shorted to ground or power
 
Knock sensor ground circuit is open (i.e., not mounted properly)
 
Knock sensor is damaged or has failed
 
On modules with an integrated sensor, clear the codes and retest for codes. If the same code resets, the ECM has failed.
 

Trouble Code: P0326



Knock Sensor (KS) Performance

Trouble Code: P0326



Knock Sensor (KS) Performance

Possible Causes:



Inspect the KS for physical damage. A KS that is dropped or damaged may cause a DTC to set.
 
Inspect the KS for proper installation. A KS that is loose or over torqued may cause a DTC to set. The KS should be free of thread sealant.
 
The KS mounting surface should be free of burrs, casting flash, and foreign material.
 

Trouble Code: P0326



Knock Sensor (KS) Circuit Low Voltage (Bank 1)

Possible Causes:



KS circuits A and B for a short to ground or an open/high resistance
 
KS circuits A and B for a short to voltage
 
KS sensor has failed
 
ECM has failed
 

Trouble Code: P0327



Knock Sensor (KS) Circuit Low Voltage

Possible Causes:



Inspect the KS for physical damage. A KS that is dropped or damaged may cause a DTC to set.
 
Inspect the KS for proper installation. A KS that is loose or over torqued may cause a DTC to set. The KS should be free of thread sealant. The KS mounting surface should be free of burrs, casting flash, and foreign material.
 
The KS must be clear of hoses, brackets, and engine electrical wiring.
 
For an intermittent condition, refer to Intermittent Conditions .
 

Trouble Code: P0327



Knock Sensor (KS) Circuit Low Voltage

Possible Causes:



Inspect the KS for physical damage. A KS that is dropped or damaged may cause a DTC to set.
 
Inspect the KS for proper installation. A KS that is loose or over torqued may cause a DTC to set. The KS should be free of thread sealant.
 
The KS mounting surface should be free of burrs, casting flash, and foreign material.
 

Trouble Code: P0328



Knock Sensor (KS) Circuit High Voltage

Possible Causes:



Inspect the KS for physical damage. A KS that is dropped or damaged may cause a DTC to set.
 
Inspect the KS for proper installation. A KS that is loose or over torqued may cause a DTC to set. The KS should be free of thread sealant.
 
The KS mounting surface should be free of burrs, casting flash, and foreign material.
 

Trouble Code: P0335



Crankshaft Position (CKP) Sensor Circuit

Trouble Code: P0335



Crankshaft Position (CKP) Sensor Circuit

Possible Causes:



With a DTC set, the engine may crank for an extended period of time during start-up.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged.
 

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor signal (+) circuit or (-) circuit is open or shorted to ground
 
CKP sensor is damaged or has failed
 
ECM has failed
 

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Performance

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Performance

Possible Causes:



With a DTC set, the engine may crank for an extended period of time during start-up.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged.
 

Trouble Code: P0336



Crankshaft Reference 18X Circuit Malfunction

Possible Causes:



CKP sensor signal circuit is open or shorted to ground
 
CKP sensor VREF circuit is open, or the ground (Low Reference) circuit is open
 
CKP sensor is damaged or it failed (check the crankshaft reluctor)
 
CKP sensor wiring routed close to spark plug wires (EMI/RFI)
 
ECM has failed
 

Trouble Code: P0340



CMP Sensor Circuit Malfunction

Possible Causes:



An intermittent crank signal will result in an interrupted cam signal and may set this DTC.
 
The following conditions may cause this DTC to set:

High resistance in the #1 secondary ignition system
 
Low resistance in the #4 secondary ignition system
 
Corroded or loose #1 or #4 secondary ignition components
 

If this DTC is determined to be intermittent, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0340



Intake CMP Sensor Circuit

Trouble Code: P0340



CMP Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal circuit is open, shorted to ground or shorted to VREF between the sensor and the ECM
 
CMP sensor VREF circuit is open between sensor and ECM
 
CMP sensor ground circuit or "shielded" ground circuit is open
 
CMP sensor is cracked or damaged (check the reluctor wheel)
 
ECM has failed
 

Trouble Code: P0341



CMP Sensor Signal Range/Performance

Possible Causes:



If DTC P0336 is set, diagnose that DTC first. An intermittent fault in the CKP circuit will cause the ECM to resync the cam and may set DTC P0341.
 
An intermittent short to voltage on the CMP signal circuit can set this DTC. A direct short to voltage on the CMP signal circuit will set DTC P0340, as there will be no change in the cam signal input.
 
The following conditions may set this DTC:

High resistance in the #1 secondary ignition system
 
Low resistance in the #4 secondary ignition system
 
Corroded or loose #1 or #4 secondary ignition components
 
Harness being routed too close to the secondary ignition components, relays, motors
 

If this DTC is determined to be intermittent, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0341



Intake Camshaft Position (CMP) Sensor Performance

Trouble Code: P0341



CMP Sensor Signal Range/Performance

Possible Causes:



CMP sensor signal circuit is open, shorted to ground or VREF
 
CMP sensor signal wire is routed to close to the Generator, spark plug wires or any other possible cause of EMI/RFI under the hood (check for high power receivers causing interference)
 
CMP sensor "shield" ground circuit is open (intermittent fault)
 
CMP sensor is cracked or damaged (check the reluctor wheel)
 
ECM has failed
 

Trouble Code: P0342



CMP Sensor Signal Range/Performance

Possible Causes:



CMP sensor signal circuit is open, shorted to ground or VREF
 
CMP sensor signal wire is routed to close to the Generator, spark plug wires or any other possible cause of EMI/RFI under the hood (check for high power receivers causing interference)
 
CMP sensor "shield" ground circuit is open (intermittent fault)
 
CMP sensor is cracked or damaged (check the reluctor wheel)
 
ECM has failed
 

Trouble Code: P0351



Ignition Coil 1 Control Circuit

Trouble Code: P0351



Ignition Coil 1 Control Circuit Malfunction

Possible Causes:



IC circuit is open, shorted to ground or shorted to power (B+)
 
IC ground (Low REF) circuit or Module ground circuit is open
 
IC power circuit is open (check the INJ fuse in U/H fuse block)
 
Ignition Coil 1 is damaged or it has failed
 
ECM has failed
 

Trouble Code: P0352



Ignition Coil 2 Control Circuit

Trouble Code: P0352



Ignition Coil 2 Control Circuit Malfunction

Possible Causes:



IC circuit is open, shorted to ground or shorted to power
 
Ignition coil (COP) is damaged or has failed
 
ECM has failed
 

Trouble Code: P0353



Ignition Coil 3 Control Circuit

Trouble Code: P0353



Ignition Coil 3 Control Circuit Malfunction

Possible Causes:



IC circuit is open, shorted to ground or shorted to power between the coil and the ECM
 
Ignition coil (COP) is damaged or has failed
 
ECM has failed
 

Trouble Code: P0354



Ignition Coil 4 Control Circuit

Trouble Code: P0354



Ignition Coil 4 Control Circuit Malfunction

Possible Causes:



IC circuit is open, shorted to ground or shorted to power between the coil and the ECM
 
Ignition coil (COP) is damaged or has failed, or the ECM has failed
 

Trouble Code: P0365



Exhaust Camshaft Position (CMP) Sensor Performance

Possible Causes:



Camshaft reluctor wheel for damage
 
Engine oil for debris
 
Timing chain, tensioner, and sprockets for wear or damage.
 
CMP has failed
 
ECM has failed
 

Trouble Code: P0366



Exhaust Camshaft Position (CMP) Sensor Performance (Bank 1)

Possible Causes:



Low reference circuit for an open/high resistance or for a short to voltage
 
5 volt reference circuit for an open/high resistance
 
Short to voltage in the signal circuit
 
Short to ground or an open/high resistance in the signal circuit.
 
CMP has failed
 
ECM has failed
 

Trouble Code: P0411



Secondary Air Injection (AIR) System Incorrect Air Flow Detected

Possible Causes:



AIR pump relay has failed
 
AIR pump has failed
 
AIR solenoid relay has failed
 
AIR solenoid valve has failed
 
Test or inspect the AIR solenoid valve outlet pipe and exhaust manifold for a restriction
 
Air injection check valve
 

Trouble Code: P0412



Secondary Air Injection (AIR) Solenoid Control Circuit

Possible Causes:



AIR pump relay has failed
 
AIR pump has failed
 
AIR solenoid relay has failed
 
AIR solenoid valve has failed
 
Test or inspect the AIR solenoid valve outlet pipe and exhaust manifold for a restriction
 
Air injection check valve
 

Trouble Code: P0418



Secondary Air Injection (AIR) Pump Control Circuit

Possible Causes:



AIR pump relay has failed
 
AIR pump has failed
 
AIR solenoid relay has failed
 
AIR solenoid valve has failed
 
Test or inspect the AIR solenoid valve outlet pipe and exhaust manifold for a restriction
 
Air injection check valve
 

Trouble Code: P0420



Catalyst System Low Efficiency Bank 1

Trouble Code: P0420



Catalyst System Low Efficiency (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Base engine problems (i.e., high engine oil or coolant usage)
 
Catalytic converter is damaged, contaminated or has failed
 
Continuous engine misfire conditions, or weak or low coil output
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Rear HO2S is loose in the mounting hole (check it for a leak)
 
Front HO2S older (aged) than the rear HO2S (HO2S-12 is lazy)
 

Trouble Code: P0430



Catalyst System Low Efficiency (Bank 2)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Base engine problems (i.e., high engine oil or coolant usage)
 
Catalytic converter is damaged, contaminated or has failed
 
Continuous engine misfire conditions, or weak or low coil output
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Rear HO2S is loose in the mounting hole (check it for a leak)
 
Front HO2S older (aged) than the rear HO2S (HO2S-12 is lazy)
 

Trouble Code: P0442



Evaporative Emissions (EVAP) System Small Leak Detected

Possible Causes:



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 a High Intensity White Light.
 
A leak in the EVAP system can be verified by use of the flow meter on the J 41413-200 . Refer to the J 41413-200 operation manual for flow meter use instructions.
 
To improve the visibility of the smoke exiting the EVAP system, observe the suspected leak area from different angles with a High Intensity White Light.
 
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 vacuum decay, this type of leak may be detected.
 
For intermittent conditions, refer to Intermittent Conditions .
 

Trouble Code: P0442



Evaporative Emissions (EVAP) System Small Leak Detected

Possible Causes:



To help locate intermittent leaks, use the J 41413-200 to introduce smoke into the EVAP system. Move all EVAP components while observing smoke with the J 41413-SPT .
 
To improve the visibility of the smoke exiting the EVAP system, observe the suspected leak area from different angles with the J 41413-SPT .
 
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 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: P0442



Evaporative Emission (EVAP) System 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
 

 
label.common.footer.alt.autozoneLogo