Radio Audio Malfunction at Rear Seat Audio (RSA) Control. GMC Truck Savana

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 Savana - AWD 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Radio Audio Malfunction at Rear Seat Audio (RSA) Control

Step	Action	Yes	No
Schematic Reference: Radio/Audio System Schematics Connector End View Reference: Entertainment Connector End Views
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Turn ON the ignition, with the engine OFF. Turn ON the radio. Turn ON the rear seat audio controller. Select the AM/FM push button on the rear seat audio controller. Connect the headphones. Does the rear seat audio operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn OFF the ignition. Disconnect the rear seat audio controller. Turn ON the ignition, with the engine OFF. Test the remote radio control supply voltage circuit of the rear seat audio controller for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 4
4	Test the ground circuit of the rear seat audio controller for high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 5
5	Test the remote radio control signal circuit of the rear seat audio controller for a short or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 6
6	Test the rear seat audio enable signal circuit of the rear seat audio controller for a short or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 7
7	Inspect for poor connections at the harness connector of the rear seat audio controller. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 8
8	Inspect for poor connections at the harness connector of the radio. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 10	Go to Step 9
9	Replace the rear seat audio controller. Did you complete the replacement?	Go to Step 10	--
10	Operate the system in order to verify the repair. Did you complete the repair?	System OK	Go to Step 2