Operation CHARM: Car repair manuals for everyone.

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 heating-A/C system uses a combination of, electrical and vacuum controls. These controls provide the vehicle operator with a number of setting options to help control the climate and comfort within the vehicle.

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

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

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