Rear

DESCRIPTION

The A/C-heater controls for the rear heating-A/C system allows both the front and intermediate seat passengers the ability to regulate air temperature as well as fan speed and provides a floor outlet near the right rear door and upper air outlets at the ceiling. All controls are identified by ISO graphic symbols.

The primary controls for the rear heating-A/C system are located in the instrument panel Description and Operation.

The rear A/C-heater control is located in the rear overhead console or in the headliner, depending on trim level. The rear A/C-heater control is a slave potentiometer to the front A/C-heater control. The rear A/C-heater control allows intermediate seat passengers to adjust rear air distribution, temperature and blower motor speed when the rear heating-A/C system primary on/off control in the instrument panel is set to the on position, and the rear controls are NOT locked out by the driver and front seat passenger.

The A/C-heater controls are diagnosed using a scan tool Testing and Inspection.

Prior to replacing a rear A/C-heater control, check for any Diagnostic Trouble Codes (DTCs) related to the heating-A/C systems and run the calibration procedure to verify that the concern is not a calibration issue HVAC System Test.

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





The rear Automatic Temperature Control (ATC) A/C-heater control (1) contains:

- a rotary control knob for fan speed selection and turning the rear heating-A/C system off or to Auto mode (2).
- a rotary control knob for temperature control of the rear discharged air (3).
- a rotary control knob for mode control of the rear discharged air (4).
- an red indicator lamp that illuminates when the rear A/C-heater controls are "locked out" by the front A/C-heater control (5).





The rear Manual Temperature Control (MTC) A/C-heater control (1) contains:

- a rotary control knob for fan speed selection and turning the rear heating-A/C system on and off (2).
- a rotary control knob for temperature control of the rear discharged air (3).
- a rotary control knob for mode control of the rear discharged air (4).