Sierra, Silverado 2006-2007

4.8L V8 VIN V Auto 8

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Trouble Code: P0979



Shift Solenoid 3 (SS3) Control Circuit Low

Possible Causes:



Inspect the wiring for poor electrical connections at the TCM. Inspect for the following conditions:

A bent terminal
 
A backed-out terminal
 
A damaged terminal
 
Poor terminal tension
 
A chafed wire
 
A broken wire inside the insulation
 

When diagnosing for an intermittent short or open, massage the wiring harness while watching the test equipment for a change.You may have to drive the vehicle in order to experience a condition.
 

Trouble Code: P0980



Shift Solenoid 3 (SS3) Control Circuit High

Possible Causes:



Inspect the wiring for poor electrical connections at the TCM. Inspect for the following conditions:

A bent terminal
 
A backed-out terminal
 
A damaged terminal
 
Poor terminal tension
 
A chafed wire
 
A broken wire inside the insulation
 

When diagnosing for an intermittent short or open, massage the wiring harness while watching the test equipment for a change.You may have to drive the vehicle in order to experience a condition.
 

Trouble Code: P0989



Transmission Fluid Pressure (TFP) Switch 5 Circuit Low Voltage

Trouble Code: P0990



Transmission Fluid Pressure (TFP) Switch 5 Circuit High Voltage

Trouble Code: P0A01



Starter/Generator Control Module Coolant Temperature Sensor 1 Performance

Trouble Code: P0A02



Starter/Generator Control Module Coolant Temperature Sensor 1 Circuit Low Voltage

Trouble Code: P0A03



Starter/Generator Control Module Coolant Temperature Sensor 1 Circuit High Voltage

Trouble Code: P0A06



Battery Energy Control Module Read Only Memory (ROM)

Possible Causes:



If condition is not present, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0A07



Battery Energy Control Module 5-Volt Reference Circuit

Possible Causes:



If condition is not present, refer to Testing for Intermittent Conditions and Poor Connections .
 

Trouble Code: P0A0A



High Voltage System Interlock Circuit

Possible Causes:



Ensure that all connectors are connected properly.
 

Trouble Code: P0A1D



HCM System Fault

Trouble Code: P0A27



Hybrid Battery Pack Relay Feedback Circuit

Trouble Code: P0A3E



Starter/Generator Control Module Overtemperature

Possible Causes:



If there is a restriction of the air flow through the radiator this DTC may set. Ensure that the vehicle front end has at least 1.5 meters (5 feet) of clearance from obstructions to airflow if vehicle is parked.
 

Trouble Code: P0A7E



Hybrid Battery Pack Overtemperature

Trouble Code: P0A7F



Hybrid Battery Pack Life

Trouble Code: P0A82



Hybrid Battery Pack Cooling Fan Stuck OFF

Trouble Code: P0A83



Hybrid Battery Pack Cooling Fan Stuck ON

Trouble Code: P0A88



14-Volt Power Module Current Sensor Circuit Low Current

Trouble Code: P0A89



14-Volt Power Module Current Sensor Circuit High Current

Trouble Code: P0A8B



14-Volt Power Module System Voltage

Trouble Code: P0A8E



14-Volt Power Module System Voltage High

Trouble Code: P0A9C



Hybrid Battery 1 Temperature Sensor Performance

Trouble Code: P0A9D



Hybrid Battery 1 Temperature Sensor Circuit Low Voltage

Trouble Code: P0A9E



Hybrid Battery 1 Temperature Sensor Circuit High Voltage

Trouble Code: P0ABF



N/A

Trouble Code: P0AC0



N/A

Trouble Code: P0AC6



Hybrid Battery 2 Temperature Sensor Performance

Trouble Code: P0AC7



Hybrid Battery 2 Temperature Sensor Circuit Low Voltage

Trouble Code: P0AC8



Hybrid Battery 2 Temperature Sensor Circuit High Voltage

Trouble Code: P0ACB



Hybrid Battery 3 Temperature Sensor Performance

Trouble Code: P0ACC



Hybrid Battery 3 Temperature Sensor Circuit Low Voltage

Trouble Code: P0ACD



Hybrid Battery 3 Temperature Sensor Circuit High Voltage

Trouble Code: P1125



Accelerator Pedal Position (APP) System

Trouble Code: P1133



HO2S Insufficient Switching Bank 1 Sensor 1

Trouble Code: P1134



HO2S Transition Time Ratio Bank 1 Sensor 1

Trouble Code: P1153



HO2S Insufficient Switching Bank 2 Sensor 1

Trouble Code: P1154



HO2S Transition Time Ratio Bank 2 Sensor 1

Trouble Code: P1380



Misfire Detected - Rough Road Data Not Available

Trouble Code: P1381



Misfire Detected - No Communication With Brake Control Module

Trouble Code: P1400



Cold Start Emission Reduction Control System

Possible Causes:



Any loading of the engine that lowers engine RPM, such as with partial application of the clutch, during the first 120 seconds of engine runtime may set this DTC.
 

 
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