For 1990-2009 cars

Step | Action | Normal Result(s) | Abnormal Result(s)*
--- | --- | --- | ---
1 | Turn the ignition switch to the RUN position and turn the radio ON. | The power antenna mast extends to the full up position. | Antenna Inoperative
2 | Turn the radio OFF. | The power antenna mast retracts to the full down position. | Antenna Inoperative
* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.