The A/C-heater control (1) for the manual temperature control (MTC) single zone 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 cable operated 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 rotary control for mode control of the discharged air (2).a rotary control for blower motor speed selection and to turn the blower motor off (3).a rotary control for temperature control of the discharged air (4).a push-button control with indicator light for to turn the rear window defogger system on and off (5), when equipped.a push-button control with indicator light for recirculation control of the discharged air (6).a push-button control with indicator light to turn the A/C system on and off (7).The A/C-heater control cannot be adjusted or repaired and it must be replaced if found inoperative or damaged. The control knobs for the A/C-heater control are available for service replacement.