Sierra, Silverado 2006-2007

8.1L V8 VIN G Auto 2

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Trouble Code: P0152



HO2S High Voltage Bank 2 Sensor 1

Trouble Code: P0153



HO2S Slow Response Bank 2 Sensor 1

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

Possible Causes:



Excessive resistance in the fuel injector control and/or the ignition 1 voltage circuits may cause the following symptoms:

A lean condition
 
Misfire
 
Rough idle Refer to DTC P0200 .
 

The system may become lean if an injector is not suppling enough fuel.A lean condition could be present during high fuel demand.Review the Failure Records with a scan tool. If an intermittent condition is suspected, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0171



Fuel Trim System Lean Bank 1

Possible Causes:



Excessive resistance in the fuel injector control and/or the ignition 1 voltage circuits may cause the following symptoms:

A lean condition
 
Misfire
 
Rough idle
 
Refer to DTC P0200 .
 

The system may become lean if an injector is not suppling enough fuel.A lean condition could be present during high fuel demand.Review the Failure Records with a scan tool. If an intermittent condition is suspected, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0172



Fuel Trim System Rich Bank 1

Possible Causes:



Fuel contamination, such as water or alcohol, will effect fuel trim.
 
A malfunctioning MAF sensor can cause a rich condition and set this DTC. Refer to DTC P0101 .
 
Review Failure Records with a scan tool. If an intermittent condition is suspected , refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0174



Fuel Trim System Lean Bank 2

Possible Causes:



Excessive resistance in the fuel injector control and/or the ignition 1 voltage circuits may cause the following symptoms:

A lean condition
 
Misfire
 
Rough idle Refer to DTC P0200 .
 

The system may become lean if an injector is not suppling enough fuel.A lean condition could be present during high fuel demand.Review the Failure Records with a scan tool. If an intermittent condition is suspected, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0174



Fuel Trim System Lean Bank 2

Possible Causes:



Excessive resistance in the fuel injector control and/or the ignition 1 voltage circuits may cause the following symptoms:

A lean condition
 
Misfire
 
Rough idle
 
Refer to DTC P0200 .
 

The system may become lean if an injector is not suppling enough fuel.A lean condition could be present during high fuel demand.Review the Failure Records with a scan tool. If an intermittent condition is suspected, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0175



Fuel Trim System Rich Bank 2

Possible Causes:



Fuel contamination, such as water or alcohol, will effect fuel trim.
 
A malfunctioning MAF sensor can cause a rich condition and set this DTC. Refer to DTC P0101 .
 
Review Failure Records with a scan tool. If an intermittent condition is suspected , refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0200



Injector Control Circuit

Possible Causes:



Performing the Fuel Injector Coil test may help isolate an intermittent condition. Refer to Fuel Injector Solenoid Coil Test .
 
For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections .
 

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: 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

Possible Causes:



Inspect the throttle actuator control (TAC) module connectors for signs of water intrusion. If water intrusion occurs, multiple DTCs may set without any circuit or component conditions found during diagnostic testing.
 
When the TAC module detects a condition within the TAC System, more than one TAC System related DTC may set. This is due to the many redundant tests run continuously on this system. Locating and repairing one individual condition may correct more than one DTC. Disconnecting components during testing may set additional DTCs. Remember this if you review the stored information in Capture Info.
 
If this DTC is determined to be intermittent, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0230



Fuel Pump Relay Control Circuit

Trouble Code: P0300



Engine Misfire Detected

Possible Causes:



Excessive vibration from sources other than the engine could cause DTC P0300 to set. The following are possible sources of vibration:

Variable thickness brake rotors--Refer to Symptoms - Hydraulic Brakes in Hydraulic Brakes.
 
Drive shaft not balanced--Refer to Vibration Analysis - Driveline in Vibration Diagnosis and Correction.
 
Worn or damaged accessory drive belt--Refer to Symptoms - Engine Mechanical in Engine Mechanical.
 

There may be more or less cylinders actually misfiring than indicated by the scan tool.Spray water on the secondary ignition components using a spray bottle. Look and listen for arcing or misfiring.If there are multiple misfires on only one bank, inspect the fuel injector and ignition coil, power and ground circuits for that bank. Refer to Engine Controls Schematics .
 

Trouble Code: P0300



Engine Misfire Detected

Possible Causes:



Excessive vibration from sources other than the engine could cause DTC P0300 to set. The following are possible sources of vibration:

Variable thickness brake rotors--Refer to Symptoms - Hydraulic Brakes .
 
Drive shaft not balanced--Refer to Vibration Analysis - Driveline .
 
Worn or damaged accessory drive belt--Refer to Drive Belt Rumbling and Vibration Diagnosis
 

There may be more or less cylinders actually misfiring than indicated by the scan tool.Spray water on the secondary ignition components using a spray bottle. Look and listen for arcing or misfiring.If there are multiple misfires on only one bank, inspect the fuel injector and ignition coil, power and ground circuits for that bank. Refer to Engine Controls Schematics .
 

Trouble Code: P0315



Crankshaft Position (CKP) System Variation Not Learned

Trouble Code: P0325



Knock Sensor (KS) Circuit

Trouble Code: P0327



Knock Sensor (KS) 1 Circuit Low Frequency

Possible Causes:



Inspect the KS for proper installation. A KS that is loose or over torqued may cause either DTC to set. For an intermittent, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0332



Knock Sensor (KS) 2 Circuit Low Frequency

Possible Causes:



Inspect the KS for proper installation. A KS that is loose or over torqued may cause either DTC to set. For an intermittent, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0335



Crankshaft Position (CKP) Sensor Circuit

Trouble Code: P0336



Crankshaft Position (CKP) Sensor Circuit

Trouble Code: P0341



Camshaft Position (CMP) Sensor Performance

Possible Causes:

The following conditions may cause this DTC to set:



Camshaft reluctor ring damage
 
The sensor coming in contact with the reluctor ring
 
Foreign material passing between the sensor and the reluctor ring
 
Excessive camshaft end-play
 
Wiring routed too close to secondary ignition components
 

Trouble Code: P0342



Camshaft Position (CMP) Sensor Circuit Low Voltage

Possible Causes:

The following conditions may cause this DTC to set:



Camshaft reluctor ring damage
 
The sensor coming in contact with the reluctor ring
 
Foreign material passing between the sensor and the reluctor ring
 
Excessive camshaft end-play
 
Wiring routed too close to secondary ignition components
 

Trouble Code: P0343



Camshaft Position (CMP) Sensor Circuit High Voltage

Possible Causes:

The following conditions may cause this DTC to set:



Camshaft reluctor ring damage
 
The sensor coming in contact with the reluctor ring
 
Foreign material passing between the sensor and the reluctor ring
 
Excessive camshaft end-play
 
Wiring routed too close to secondary ignition components
 

Trouble Code: P0351



Ignition Coil 1 Control Circuit

Trouble Code: P0352



Ignition Coil 2 Control Circuit

Trouble Code: P0353



Ignition Coil 3 Control Circuit

Trouble Code: P0354



Ignition Coil 4 Control Circuit

Trouble Code: P0355



Ignition Coil 5 Control Circuit

Trouble Code: P0356



Ignition Coil 6 Control Circuit

Trouble Code: P0357



Ignition Coil 7 Control Circuit

Trouble Code: P0358



Ignition Coil 8 Control Circuit

Trouble Code: P0381



Wait To Start Lamp Control 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. The wait to start indicator illuminates only with the ignition ON and the engine OFF. The wait to start indicator will not illuminate during post-start glow plug operation. The wait to start indicator will not stay ON for long at higher engine temperatures.
 

Trouble Code: P0420



Catalyst System Low Efficiency Bank 1

Possible Causes:



The catalyst test may abort due to a change in the engine load. Do not change the engine load, ensure the AC is OFF, the coolant fan is not cycling, while a catalyst test is in progress.
 
Driving the vehicle under the conditions outlined in the Inspection/Maintenance (I/M) section can verify whether the fault is present.
 
These conditions may cause a catalytic converter to degrade. Inspect for the following conditions:

An engine misfire
 
High engine oil or high coolant consumption
 
Retarded spark timing
 
A weak or poor spark
 
A lean fuel mixture
 
A rich fuel mixture
 
A damaged oxygen sensor or wiring harness
 
If an intermittent condition cannot be duplicated, the information included in Freeze Frame data can be useful in determining the vehicle operating conditions when the DTC was set.
 

The catalyst may have been temporarily contaminated with a chemical from a fuel additive, fuel contamination or any of the above conditions.
 

 
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