GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

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

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Go to Step 2

Go to Diagnostic System Check - Radio/Audio System

2

  1. Turn OFF the ignition.
  2. Insert a CD magazine with at least 1 audio CD into the remote CD changer.
  3. Turn ON the ignition, with the engine OFF.
  4. Turn ON the radio.
  5. Play the CD in the remote CD changer.

Does the remote CD changer play without noise?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Disconnect the remote CD changer.
  2. Inspect for poor connections at the harness connector of the remote CD changer. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 9

Go to Step 4

4

  1. Remove the Radio. Refer to Radio Replacement and Radio Setup for service procedure.
  2. Inspect for poor connections at the harness connector of the Radio. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 9

Go to Step 5

5

Test the shield ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 9

Go to Step 6

6

Test the common audio input circuit for a short, high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 9

Go to Step 7

7

Inspect the audio harness shield for damage.

Did you find and correct the condition?

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Go to Step 9

Go to Step 8

8

Replace the remote CD changer. Refer to Remote CD Changer Replacement for service procedure.

Did you complete the replacement?

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Go to Step 9

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9

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2