Control Assembly: Description and Operation

DESCRIPTION





The A/C-heater control for the manual temperature control (MTC) single zone heating-A/C system allows one temperature setting for the entire vehicle. All controls are identified by ISO graphic symbols.

The A/C-heater control and integral computer is located in the instrument panel and contains:

- a rotary control for fan speed selection (1).
- a rotary control for temperature control of the discharged air (2).
- a rotary control for recirculation and mode control of the discharged air (3).
- a push button A/C on/off control (4). The Snowflake button contains an LED that illuminates when the A/C system is in operation.
- a push button rear window defogger on/off control (5). The defogger button contains an LED that illuminates when the rear window defogger (EBL) system is in operation.

The A/C-heater control is diagnosed using a scan tool HVAC System Test.

The A/C-heater control cannot be repaired and must be replaced if inoperative or damaged. The illumination lamps are available for service replacement.