Diagnostic Aids

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

C0800 03

Test the charging system Refer to DIAGNOSTIC SYSTEM CHECK - VEHICLE .
Possible causes of this DTC are the following conditions:
- A charging system malfunction
- An excessive battery draw
- A weak battery
- A faulty system ground

C0800 07

Test the charging system Refer to DIAGNOSTIC SYSTEM CHECK - VEHICLE .
A possible cause of this DTC is overcharging.