Troubleshooting Hints - HVAC System - Single Zone

1. Check I/P Fuse Block Fuses 11 and 17 by visual inspection.
2. If the Steering Wheel Controls do not operate the Radio or the Heater and A/C Controls, refer to STEERING WHEEL CONTROLS for diagnosis.
3. Check for vacuum at the VIOLET vacuum hose from the vacuum source entering the HVAC Programmer.