Circuit/System Testing
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
- Observe the scan tool for any other DTCs.
- If DTC P0560 is also set, refer to DTC P0560 to repair the charging system.
- Observe the Output Driver Status with a scan tool.
- If any parameter does NOT indicate OK, test for a short to voltage on the control circuit of the component that indicated a fault.
- If all circuits test OK, replace the PCM.