GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to the RUN position.
  2. Turn the radio on.

The power antenna mast extends to the full height. The radio receives strong broadcast signals.

    •  Antenna Inoperative

2

Turn the radio off.

The power antenna mast retracts into the fender.

Power Antenna Motor Replacement

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