Diagnostic Aids

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.

The RAP/Spare relay is permanently soldered to the left I/P junction block and is non-serviceable.
The RAP mode for the radio and door modules is a separate function and will still operate properly.