Normal Operation
WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Variable voltage is supplied to the climate control function selector switch assembly from the instrument panel dimmer switch on circuit VLN18 (BU/WH). The climate control function selector switch assembly is grounded through circuit GD161 (BK/YE).
Possible Causes
- Circuit VLN18 (BU/WH) open
- Circuit GD161 (BK/YE) open
- Climate control function selector switch assembly