Control Assembly

Removal

1. Disconnect battery ground cable (14301) .

2. Snap control opening finish panel away from instrument panel (04320) . Refer to Section 01-12.

3. Remove four screws attaching heater control (18549) assembly to inst rument panel .

4. Pull manual heater control from instrument panel and disconnect wire connectors from the heater control .

5. Disconnect vacuum hose harness (19C827) .

6. Disconnect A/C temperature cable (19988) from air conditioner control (19980) .

7. The control knobs (18519) can be removed by pulling off the shafts.

8. Remove air conditioner control .

Installation

1. Push control knobs on appropriate shafts, if they were removed.

2. Connect A/C temperature cable to heater control assembly.

    CAUTION: Screw on vacuum hose harness retaining nuts. Be careful not to strip the posts.

3. Connect wire connector(s) and vacuum hose harness to heater control assembly.

4. Position heater control in instrument panel opening and install four retaining screws.

5. Install control opening finish panel by snapping it into place.

6. Connect battery ground cable .

7. Check system for proper operation.

Control Assembly Illumination Bulbs

Removal and Installation

1. Remove heater control .

2. Remove illumination bulbs from the backside of heater control .

3. To install, reverse Removal procedures.

Heater Blower Motor Switch

Removal

1. Remove heater control assembly from instrument panel as outlined.

2. Remove heater blower motor switch knob .

3. Disconnect wire connector from blower motor switch (19986) .

4. From underside, remove blower motor switch retaining screw and detach blower motor switch from heater control assembly.

Installation

1. Position blower motor switch on heater control assembly frame. Ensure retaining tabs on blower motor switch are engaged in slots in manual air conditioner control assembly frame. Install retaining screw.

2. Connect wire connector to blower motor switch .

3. Install switch knob .

4. Install heater control assembly in instrument panel .

5. Check system for proper operation.

A/C Damper Door Switch

Removal

1. Remove heater control assembly from vehicle.

2. Move function selector knob to OFF position.

3. Remove screw attaching A/C damper door switch (19B888) to control assembly and remove A/C damper door switch .

4. Pull vacuum hose harness retaining nuts off posts and disconnect vacuum hose harness .

Installation

1. Move select knob to OFF position.

2. Position A/C damper door switch on heater control assembly. Ensure retainer tabs on A/C damper door switch are engaged in slots in control assembly frame.

3. Install retaining screw.

    CAUTION: Screw on vacuum hose harness retaining nuts. Be careful not to strip the posts.

4. Connect vacuum hose harness .

5. Install heater control assembly in instrument panel .