Diagnostic Aids
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. 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 Accessory DC Power Control Module and chassis 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.