Diagnostic Aids
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
C0800 03
- A low voltage DTC in multiple modules indicates a concern in the charging system. Refer to DC Power Conversion Test .
- Possible causes of this DTC are the following conditions:
- A charging system malfunction
- An excessive battery draw
- A weak battery
- A poor system ground
- An open or high resistance in a circuit
- An internal module malfunction
C0800 07
- Test the charging system. Refer to DC Power Conversion Test .
- Possible causes of this DTC are overcharging or jump starting.