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A/C HEATER CONTROL
This ATC system uses a combination of electrical and mechanical controls. These controls provide the vehicle operator with a number of setting options to help control the climate and comfort within the vehicle.

A/C Heater Control:

The A/C-heater control is located on the instrument panel inboard of the steering column and below the radio. The A/C-heater control contains a rotary-type temperature control, a rotary-type mode control, a thumbwheel-type blower motor speed control and an A/C mode push button switch and indicator lamp. The A/C-heater control also features a push button switch and indicator lamp for the residual engine heat utilization (REST) function, cabin heater or the heater booster (as equipped).

To control the interior temperature, the A/C-heater control uses the actual values from the temperature sensors and the CAN bus and compares them with the nominal value of the temperature control switch. The A/C-heater control is diagnosed using a DRBIII(R) scan tool. Refer to Body Diagnostic Procedures.

The A/C-heater control is diagnosed using a DRBIII(R) scan tool. Refer to Body Diagnostic Procedures.

The A/C-heater control cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.