GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

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

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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.

  6. Adjust the balance control to the full left setting and then the full right setting.

Can sound be heard from both channels of the remote CD changer?

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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 7

Go to Step 4

4

  1. Remove the Radio.
  2. 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?

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Go to Step 7

Go to Step 5

5

Test the appropriate (left or right) audio output for an open, short 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 7

Go to Step 6

6

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 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2