Dodge Journey: Description

Heating & Air Conditioning
Fig. 161: Rear Heater AC Housing Description

Models with the rear heating-A/C system use a rear heater-A/C housing (1) that combines A/C and heating capabilities into a single unit mounted within the rear passenger compartment. The rear heating-A/C system is a blend-air type system. A blend-air door controls the amount of conditioned air that is allowed to flow through, or around, the heater core (9). The rear A/C system is designed for the use of a non-CFC, R-134a refrigerant and uses an A/C expansion valve (7) and A/C evaporator (6) to cool and dehumidify the incoming air prior to blending it with the heated air. A temperature control determines the discharge air temperature by operating the blend door actuator (3), which moves the blend-air door. This allows an almost immediate control of the output air temperature of the rear system. The mode control operates the mode door actuator (2) that positions the mode-air door to direct the flow of the conditioned air out the upper or lower air outlets, depending on the position selected. Both electric door actuators are connected to the vehicle electrical system by the rear heater- A/C wire harness (8). The rear blower motor (4) controls the velocity of air flowing through the rear heater-A/C housing by spinning the blower wheel within the rear housing at the selected speed by use of the rear blower motor resistor or power module (5) (depending on manual or automatic control).

The rear heater-A/C housing must be removed from the vehicle for service of the mode door actuator and blend door actuator and it must be disassembled for service of the A/C evaporator and the heater core.

    Removal
    WARNING: Refer to the applicable warnings and cautions for this system before performing the following operation. Failure to follow these instructions may result in serious or fat ...

    See also:

    CARGO AREA FEATURES
    Rechargeable Flashlight — If Equipped The rechargeable LED flashlight stores in its charging station in the left rear quarter trim panel. To remove it, press on the indent on the side of the flas ...

    Diagnosis and Testing
    BATTERY SYSTEM The battery, starting, and charging systems in the vehicle operate with one another and must be tested as a complete system. In order for the engine to start and the battery to main ...

    Assembly
    HOUSING-AIR DISTRIBUTION NOTE: LHD model with A/C shown in illustrations. RHD and heater-only models similar. Fig. 115: Mode Door Levers-Removal/Installation 1. If removed, install the fo ...

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