Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- The HPCM does not receive voltage from the SDGM on the wake up signal circuit.
- The wake up circuit between the SDGM and the APM is shorted to voltage.
- Any of the 4 PTLAN circuits connected to the HPCM are open.