Envoy, Rainer, Trailblazer 2006-2007

6.0L V8 VIN H Auto 2

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Trouble Code: P0154



HO2S Circuit Insufficient Activity Bank 2 Sensor 1

Trouble Code: P0155



HO2S Heater Performance Bank 2 Sensor 1

Trouble Code: P0157



HO2S Circuit Low Voltage Bank 2 Sensor 2

Trouble Code: P0158



HO2S Circuit High Voltage Bank 2 Sensor 2

Trouble Code: P0160



HO2S Circuit Insufficient Activity Bank 2 Sensor 2

Trouble Code: P0161



HO2S Heater Performance Bank 2 Sensor 2

Trouble Code: P0171



Fuel Trim System Lean Bank 1

Trouble Code: P0172



Fuel Trim System Rich Bank 1

Trouble Code: P0174



Fuel Trim System Lean Bank 2

Trouble Code: P0175



Fuel Trim System Rich Bank 2

Trouble Code: P0201



Injector 1 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0202



Injector 2 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0203



Injector 3 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0204



Injector 4 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0205



Injector 5 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0206



Injector 6 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0207



Injector 7 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0208



Injector 8 Control Circuit

Possible Causes:



Performing the Fuel Injector Diagnosis may help isolate an intermittent condition. Refer to Fuel Injector Diagnosis .
 

Trouble Code: P0218



Transmission Condition Overtemperature

Possible Causes:



The scan tool Trans. Fluid Temp. should rise steadily to a normal operating temperature, then stabilize.
 
Ask about the customer's driving habits, trailer towing, etc. Trailer towing should occur in D3.
 
Refer to Symptoms - Automatic Transmission .
 

Trouble Code: P0220



Throttle Position (TP) Sensor 2 Circuit

Trouble Code: P0222



Throttle Position (TP) Sensor 2 Circuit Low Voltage

Trouble Code: P0223



Throttle Position (TP) Sensor 2 Circuit High Voltage

Trouble Code: P0230



Fuel Pump Relay Control Circuit

Trouble Code: P0300



Engine Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0305



Cylinder 5 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0306



Cylinder 6 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0307



Cylinder 7 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0308



Cylinder 8 Misfire Detected

Possible Causes:



A misfire may only occur when the engine is operating under a load or when the engine is cold.
 
A high resistance condition on any ignition control (IC) circuit can cause an engine misfire P0300-P0308 DTC to set, without setting an IC circuit P0351-P0358 DTC.
 
This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 
A misfire DTC could be caused by an excessive vibration from sources other than the engine. Inspect the following for possible sources of vibration:

A tire or wheel that is out of round or balance
 
Variable thickness brake rotors
 
An unbalanced drive shaft
 
Certain rough road conditions
 
A damaged accessory drive component or belt
 
A damaged reluctor wheel
 
The Crankshaft Position System Variation Learn procedure may need to be performed.
 

 

Trouble Code: P0315



Crankshaft Position (CKP) System Variation Not Learned

Possible Causes:



This test procedure requires that the vehicle battery has passed a load test and is completely charged. Refer to Battery Inspection/Test .
 

Trouble Code: P0324



Knock Sensor (KS) Module 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 mounting surface should be free of burs, casting flash, and foreign material.
 

Trouble Code: P0325



Knock Sensor (KS) Circuit Bank 1

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 mounting surface should be free of burs, casting flash, and foreign material.
 

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 mounting surface should be free of burs, casting flash, and foreign material.
 

Trouble Code: P0327



Knock Sensor (KS) Circuit Low Voltage Bank 1

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 mounting surface should be free of burs, casting flash, and foreign material.
 

Trouble Code: P0328



Knock Sensor (KS) Circuit High Voltage Bank 1

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 mounting surface should be free of burs, casting flash, and foreign material.
 

Trouble Code: P0330



Knock Sensor (KS) Circuit Bank 2

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 mounting surface should be free of burs, casting flash, and foreign material.
 

Trouble Code: P0332



Knock Sensor (KS) Circuit Low Voltage Bank 2

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 mounting surface should be free of burs, casting flash, and foreign material.
 

 
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