Silverado 2008

5.3L V8 VIN M Auto 9

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Trouble Code: C0379 02



Front Axle System Short to Ground

Possible Causes:



The TCCM monitors the front axle switch signal circuit and the front axle actuator control circuit for unexpected voltages. The DTC sets if the TCCM detects a high voltage when a low voltage is expected, or a low voltage when a high voltage is expected.
 

Trouble Code: C0379 04



Front Axle System Open Circuit

Possible Causes:



The TCCM monitors the front axle switch signal circuit and the front axle actuator control circuit for unexpected voltages. The DTC sets if the TCCM detects a high voltage when a low voltage is expected, or a low voltage when a high voltage is expected.
 

Trouble Code: C0379 08



Front Axle System Signal Invalid

Possible Causes:



The TCCM monitors the front axle switch signal circuit and the front axle actuator control circuit for unexpected voltages. The DTC sets if the TCCM detects a high voltage when a low voltage is expected, or a low voltage when a high voltage is expected.
 

Trouble Code: C0387 59



Unable to Complete Shift Circuit

Possible Causes:



A shift request was received but could not be completed within 15 seconds.
 

Trouble Code: C0396 01



Incremental Sensor Circuit Short to Battery

Possible Causes:



C0396 01
 
Voltage on incremental encoder sensor 8 V supply circuit greater than 9.0 V.
 

Trouble Code: C0396 02



Incremental Sensor Circuit Short to Ground

Possible Causes:



C0396 02
 
Incremental encoder sensor 8 V supply circuit less than 1.5 V, or voltage on incremental encoder impulse signal circuit or incremental encoder direction signal circuit less than 0.5 V.
 

Trouble Code: C0396 02



Incremental Sensor Circuit Short to Ground

Possible Causes:



C0396 02
 
Incremental encoder sensor 8 V supply circuit less than 1.5 V; or, voltage on incremental encoder impulse signal circuit or incremental encoder direction signal circuit less than 0.5 V.
 

Trouble Code: C0396 04



Incremental Sensor Open Circuit

Possible Causes:



C0396 04
 
Voltage on encoder 8 V supply circuit is 1.5-9.0 V and voltage read by low reference circuit less than 0.3 V.
 

Trouble Code: C0396 05



Incremental Sensor Circuit Short to Battery or Open

Possible Causes:



C0396 05
 
Voltage on encoder signal circuits less than 0.3 V or greater than 4.6 V.
 

Trouble Code: C0397 64



Transfer Case Clutch Performance Actuator Slipping

Possible Causes:



The transfer case is unable to correct for slip.
 

Trouble Code: C0550 01



Electronic Control Unit (ECU) Performance

Possible Causes:



An internal EBCM malfunction exists.
 

Trouble Code: C0550 02



Electronic Control Unit (ECU) Performance

Possible Causes:



An internal EBCM malfunction exists.
 

Trouble Code: C0550 03



Electronic Control Unit (ECU) Performance

Possible Causes:



An internal EBCM malfunction exists.
 

Trouble Code: C0550 04



Electronic Control Unit (ECU) Performance

Possible Causes:



An internal EBCM malfunction exists.
 

Trouble Code: C0550 31



Electronic Control Unit (ECU) Performance

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0550 32



ECU Performance General Memory Failure

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0550 34



ECU Malfunction RAM Failure

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0550 35



ECU Malfunction ROM Failure

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0550 36



ECU Malfunction EEPROM Failure

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0550 37



ECU Malfunction Watch Dog failure

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0550 37



Electronic Control Unit (ECU) Performance Watchdog Failure

Possible Causes:



The random access memory (RAM) of the TCCM has failed an operational test indicating that some portions of RAM are not functional.
 
The read only memory (ROM), or the masked ROM, of the TCCM has failed the Checksum test indicating that the data is not currently valid.
 
The critical operational parameters stored in the EEPROM of the TCCM have failed the Checksum test indicating invalid data.
 

Trouble Code: C0550 37



Electronic Control Unit (ECU) Performance Watchdog Failure

Possible Causes:



The random access memory (RAM) of the TCCM has failed an operational test indicating that some portions of RAM are not functional.
 
The read only memory (ROM) or the masked ROM of the TCCM has failed the Checksum test indicating that the data is not currently valid.
 
The critical operational parameters stored in the EEPROM of the TCCM have failed the Checksum test indicating invalid data.
 

Trouble Code: C0550 38



ECU Performance Supervision Software Failure

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0550 39



Electronic Control Unit (ECU) Internal Electronic Failure

Possible Causes:



The random access memory (RAM) of the TCCM has failed an operational test indicating that some portions of RAM are not functional.
 
The read only memory (ROM), or the masked ROM, of the TCCM has failed the Checksum test indicating that the data is not currently valid.
 
The critical operational parameters stored in the EEPROM of the TCCM have failed the Checksum test indicating invalid data.
 

Trouble Code: C0550 39



Electronic Control Unit (ECU) Internal Electronic Failure

Possible Causes:



The random access memory (RAM) of the TCCM has failed an operational test indicating that some portions of RAM are not functional.
 
The read only memory (ROM) or the masked ROM of the TCCM has failed the Checksum test indicating that the data is not currently valid.
 
The critical operational parameters stored in the EEPROM of the TCCM have failed the Checksum test indicating invalid data.
 

Trouble Code: C0550 4B



ECU Internal Fault

Possible Causes:



The control module detects an internal write malfunction.
 
The control module detects an internal checksum malfunction.
 

Trouble Code: C0558 46



Calibration Data Not Programmed/Learned, vehicle configuration not programmed

Possible Causes:



The EBCM has not been programmed.
 

Trouble Code: C0561 72



System Disabled Information Stored Alive Counter Incorrect or not Updated

Possible Causes:



The EBCM receives an invalid message from another module over GMLAN which causes EBCM to deactivate ABS, VSES, TCS, etc.
 

Trouble Code: C0561 74



System Disabled Information Stored Value of Signal Protection Calculation Incorrect

Possible Causes:



The EBCM receives an invalid message from another module over GMLAN which causes EBCM to deactivate ABS, VSES, TCS, etc.
 

Trouble Code: C0569 00



System Configuration Error

Possible Causes:



The RCDLR has not undergone the programming procedure.
 

Trouble Code: C0569 4B



System Configuration Error Calibration Not Learned

Possible Causes:



The ATC motor learn procedure for a new or reprogrammed TCCM has not been performed.
 

Trouble Code: C0710 00



Steering Position Signal

Possible Causes:



Opens, short to ground, or short to voltage.
 
The calculated steering angle from the steering angle sensor does not correlate with the steering angle calculated from the yaw rate.
 

Trouble Code: C0710 5A



Steering Position Signal Plausibility Failure

Possible Causes:



Opens, short to ground, or short to voltage.
 
The calculated steering angle from the steering angle sensor does not correlate with the steering angle calculated from the yaw rate.
 

Trouble Code: C0750 00



Left Front Low Tire Pressure Sensor

Possible Causes:



A sensor does not transmit for 18 minutes.
 
A sensor low battery condition.
 

Trouble Code: C0750 08



Left Front Low Tire Pressure Sensor Signal Invalid

Possible Causes:



A sensor does not transmit for 18 minutes.
 
A sensor low battery condition.
 

Trouble Code: C0755 00



Right Front Low Tire Pressure Sensor

Possible Causes:



A sensor does not transmit for 18 minutes.
 
A sensor low battery condition.
 

Trouble Code: C0755 08



Right Front Low Tire Pressure Sensor Signal Invalid

Possible Causes:



A sensor does not transmit for 18 minutes.
 
A sensor low battery condition.
 

Trouble Code: C0760 00



Left Rear Low Tire Pressure Sensor

Possible Causes:



A sensor does not transmit for 18 minutes.
 
A sensor low battery condition.
 

Trouble Code: C0760 08



Left Rear Low Tire Pressure Sensor Signal Invalid

Possible Causes:



A sensor does not transmit for 18 minutes.
 
A sensor low battery condition.
 

Trouble Code: C0765 00



Right Rear Low Tire Pressure Sensor

Possible Causes:



A sensor does not transmit for 18 minutes.
 
A sensor low battery condition.
 

 
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