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 Steering, for diagnosis. Steering

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

^ Go to A/C System Check for guide to normal operation. Refer to the System Diagnosis if other results occur. Electronic Controls Air Delivery & Temperature Controls