Troubleshooting Hints - Air Delivery & Temperature Controls

Try the following checks before doing the System Check.

1. If the Steering Wheel Controls do not operate the Radio or the Heater And A/C Controls, refer to Radio, Stereo, and Compact Disc for diagnosis. Radio, Stereo, and Compact Disc

2. Check for vacuum at the PPL vacuum hose from the vacuum source entering ECC Programmer.

^ Go to the Overall A/C System Check for a guide to normal operation. Refer to the System Diagnosis if other results occur. System Check - Overall - Electronic Climate Control (ECC) Air Delivery & Temperature Controls