Dodge Durango

 Service Manual

Heating and Air Conditioning » Description and operation
Heater and air conditioner control

DESCRIPTION

The heater and A/C system use a combination of mechanical, 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. Refer to the owner's manual in the vehicle glove box for more information on the features, use, and suggested operation of these controls.

OPERATION

The heater-A/C control panel is located to the right of the instrument cluster on the instrument panel.

The control panel contains a rotary-type temperature control knob, a rotary-type mode control switch knob, and a rotary-type blower motor speed switch knob.

The heater-A/C control panel cannot be repaired. If faulty or damaged, the entire unit must be replaced.

The illumination lamps are available for service replacement.

Blower motor

Blower motor relay

Blower motor resistor

Blower motor switch

Compressor

Compressor clutch

Compressor clutch relay

Condenser

Electronic cycling clutch switch

Evaporator coil

Expansion valve

Filter-drier

Heater and air conditioner

Heater and air conditioner control

Heater core

High pressure cut-off switch

High pressure relief valve

Low pressure cut-off switch

Rear overhead air conditioner

Refrigerant

Refrigerant lines

Refrigerant line couplers

Refrigerant oil

Refrigerant system service ports

Vacuum check valve

Vacuum reservoir