GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Radio/Audio System Schematics

Connector End Views Reference: Entertainment Connector End Views

1

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

Go to Step 2

Go to Radio/Audio System Description and Operation

2

Use the J 39916-A CD and Cassette Diagnostic Audio Kit in order to perform the motor speed test.

Is the cassette motor speed correct?

Go to Step 3

Go to Step 4

3

Use the J 39916-A in order to clean the cassette player.

Did you complete the repair?

Go to Step 5

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4

Replace the radio. Refer to Control Module References in Computer/Integrating Systems.

Did you complete the replacement?

Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2