GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Video System Schematics

1

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

Go to Step 2

Go to Diagnostic System Check - Entertainment System

2

Turn on the radio, CD player or video entertainment system.

Is there distortion in any of the speakers?

Go to Step  3

Go to Audio System Troubleshooting Hints

3

Test for a short to B+ on the VCP status serial data circuit between the VCP and the auxiliary module. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step  6

Go to Step  4

4

Inspect for poor connections at the video entertainment system connectors. 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  6

Go to Step  5

5

Replace the auxiliary video module. Refer to Audio/Video Interface Module Replacement .

Did you complete the repair?

Go to Step  6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2