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.
- A charging system malfunction may cause variances in system voltage and set voltage related DTCs. Refer to DC Power Conversion Test .
- A poor ground connection between the APM chassis and vehicle ground may result in excess current passing through the 42-volt ground circuit connector X2 terminal 2 from the electric power steering circuit resulting in DTC P0A8D.