GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

    â€¢ Turn the ignition switch to the RUN position.
    â€¢ Turn the radio ON.
    â€¢ Operate the radio from the radio control switches on the steering wheel.

The radio controls function normally.

Radio Inoperative with Steering Wheel Controls

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.