1. Turn the ignition switch to the ON position.
2. Turn the radio ON.
3. Press switch #1 on the steering wheel control switch to decrease the radio volume.

The radio volume decreases when switch #1 is pressed.

The radio volume does not decrease. Go to Steering Wheel Controls Inoperative for diagnosis.

Press switch #2 on the steering wheel control switch to increase the radio volume.

The radio volume increases when switch #2 is pressed.

The radio volume does not increase. Go to Steering Wheel Controls Inoperative for diagnosis.

Press switch #3 on the steering wheel control switch to select the radio mode.

The radio alternates modes when switch #3 is pressed.

The radio does not alternate modes. Go to Steering Wheel Controls Inoperative for diagnosis.

Press switch #4 and Switch #5 on the steering wheel control switch to manually select a different radio station.

The radio changes stations when either switch #4 or switch #5 is pressed.

The radio does not change stations. Go to Steering Wheel Controls Inoperative for diagnosis.

Press switch #6 on the steering wheel control switch to scan stations on the radio.

The radio scans stations when switch #6 is pressed.

The radio does not scan stations. Go to Steering Wheel Controls Inoperative for diagnosis.

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