GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you review the Radio/Audio System Operation and perform the necessary inspections?

Go To Step 2

Go to Symptoms - Entertainment

2

Verify that the radio memory is inoperative.

Does the radio memory operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Disconnect the radio connector. Refer to Radio Replacement for access.
  2. Connect a test light between cavity B1 of the radio connector and a good ground.

Does the test light illuminate?

Go to Step 4

Go to Step 5

4

Replace the radio. Refer to Radio Replacement .

Did you complete the replacement?

Go to Step 6

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5

Repair the open in the WHT wire of the memory supply voltage circuit. Refer to Wiring Repairs in Wiring Systems.

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 3