Radio Audio Inoperative at Rear Seat Audio (RSA) Control

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Radio/Audio System Schematics
1	Did you perform the Entertainment System Diagnostic System Check?	Go to Step 2	Go toDiagnostic System Check - Entertainment System
2	Turn ON the ignition, with the engine OFF. Turn ON the radio. Turn ON the rear seat audio system. Connect headphones. Does the rear seat audio operate normally?	Go toTesting for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Inspect for poor connections at the harness connector of the auxiliary HVAC control module. Refer toTesting for Intermittent Conditions and Poor Connections andConnector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 5	Go to Step 4
4	Replace the auxiliary HVAC control module. Refer to HVAC Control Module Replacement - Auxiliary Did you complete the replacement?	Go to Step 5	-
5	Operate the system in order to verify the repair. Did you correct the conditon?	System OK	Go to Step 2