GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Savana 🢒 Body and Accessories 🢒 Entertainment 🢒 Radio Audio Malfunction at Rear Seat Audio (RSA) Control

Step

Action

Yes

No

Schematic Reference: Radio/Audio System Schematics

1

Did you perform the Diagnostic System Check - Radio/Audio System?

Go to Step 2

Go to Diagnostic System Check - Radio/Audio System

2
  1. Turn ON the ignition, with the engine OFF.
  2. Turn ON the radio.
  3. Turn ON the rear seat audio controller.
  4. Select the AM/FM push button on the rear seat audio controller.
  5. 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
  1. Turn OFF the ignition.
  2. Disconnect the rear seat audio controller.
  3. Turn ON the ignition, with the engine OFF.
  4. 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