Operation CHARM: Car repair manuals for everyone.

General Information

Control Assembly Description: C67:




The electronic heater and A/C control assembly is the vehicle operator's control point for the electronic air conditioning system. The heater and A/C control includes the following components:
^ Soft-touch buttons for the following system operating modes:
- OFF
- MAX A/C
- NORM A/C
- BI-LEVEL
- VENT
- HEATER
- DEFOG
- DEFROST
- RECIRC
- UPPER
- LOWER
^ A blower speed control
^ A temperature control lever
^ The ON/OFF switch located in the heater and A/C control for vehicles equipped with a rear window defogger

Operating mode buttons contain an LED indicator that illuminates when selected. The rear window defogger button also contains an LED indicator.

The heater and A/C control is the electronic air conditioning systems control center. The heater and A/C control sends commands to the system components that control the following functions:
^ A/C compressor operation
^ Air discharge location
^ Air discharge temperature
^ Air discharge blower operation