HVAC System (Auto A/c) (Diagnostics): Other Subaru Outback BH

CAUTION

1. Never connect the battery in reverse polarity. The Auto A/C control module will be destroyed instantly.
2. Do not disconnect the battery terminals while the engine is running. A large counter electro motive force will be generated in the alternator, and this voltage may damage electronic parts such as A/C control module.
3. Before disconnecting the connectors of each sensor and the A/C control module, be sure to turn off the ignition switch. Otherwise, the Auto A/C control module may be damaged.
4. Every Auto A/C-related part is a precision part. Do not drop them.
5. Airbag system wiring harness is routed near the A/C control panel (A/C control module) and junction box. CAUTION: All Airbag system wiring harness and connectors are colored yellow. Do not use electrical test equipment on these circuits. Be careful not to damage Airbag system wiring harness when servicing the A/C control panel (A/C control module) and junction box.

REFRIGERANT LINE

Check contact for refrigerant line (A).

Checking Contact For Refrigerant Line. Scheme 57

Scheme 58

1. Check state of mode door control rod and linkage.
2. Check state of air mix door control rod and linkage.
3. Check state of intake door control rod and linkage. (Scheme 58): Checking Control Rod & Linkage

CONTROL SWITCHES

Start and warm up engine completely.

Scheme 59

Scheme 60

Scheme 61

1. Inspection using switches. (Scheme 59): Inspection Chart For Switches
2. Compressor operation inspection (Scheme 60): Inspection Chart For Compressor
3. Illumination control inspection (Scheme 61): Inspection Chart For Illumination

Locating Electrical Components. Scheme 62

Scheme 63

Scheme 64

1. Disconnect ground cable from battery.
2. Remove front cover (A).
3. Loosen 2 screws (B) to remove center panel (C).
4. Loosen screws to pull control unit slightly out of center console.
5. Disconnect connector to remove control unit.