Radio Audio Inoperative at Rear Seat Audio (RSA) Control

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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 (Base/Uplevel Radio - UQ3/UQ5) Radio/Audio System Schematics (Premium Radio - UQ7 w/o Y91) Radio/Audio System Schematics (Luxury Radio - UQ7 w/Y91)
1	Did you perform the Diagnostic System Check - Entertainment System?	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 (RSA) controller. Select the AM/FM push button on the rear seat audio controller. 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	Are both left and right audio channels inoperative at the RSA?	Go to Step 5	Go to Step 4
4	Test the appropriate speaker input circuits of the rear seat audio controller for a short, high resistance, or an open. Refer toCircuit Testing andWiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 5
5	Inspect for poor connections at the harness connector of the rear seat audio controller and the radio. Refer toTesting for Intermittent Conditions and Poor Connections andConnector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 6
6	Replace the rear seat audio controller. Refer to Audio Control Replacement - Rear Seat Did you complete the replacement?	Go to Step 7	-
7	Operate the system in order to verify the repair. Did you complete the repair?	System OK	Go to Step 2