Circuit/System Verification

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Allow the entertainment system to cool if the ambient temperature inside the vehicle is in excess before proceeding with this diagnostic procedure.

Ignition ON, with a scan tool clear all DTCs.
Radio ON, operate the system within the Condition for Running the DTC.
- If the DTC resets, replace the audio amplifier.