For 1990-2009 cars

### Removal Procedure

1. Remove the center console trim bezel. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gauges, and Console.
2. Remove the radio. Refer to Radio Replacement in Entertainment.
3. Grasp firmly on the heater control unit lever knobs and pull the knobs out.
4. Remove the screw and the right-side instrument panel cluster lower cover.
5. Gently pry out the heater face plate.
6. Remove the face plate illumination lamp socket.
7. Remove the air conditioning (A/C) switch.
8. Remove the following cables at the heater case and the blower case:

• | The temperature control cable (6). Refer to Temperature Control Cable Replacement .

• | The mode control cable (2). Refer to Mode Control Cable Replacement .

• | The refresh/recirc control cable (3). Refer to Vent Control Cables Replacement .

9. Remove the 2 screws from the heater control unit.
10. Remove the blower switch electrical connector.
11. Remove the heater control unit from the instrument panel through the radio opening.
12. Remove the blower switch from the heater control unit (5) (if needed).

### Installation Procedure

1. Install the blower switch to the heater control unit (5) (if needed).
2. Install the heater control unit (5) to the IP.
3. Install the blower motor electrical connector.
4. Install the heater control unit (5). Secure the unit with the 2 screws.
5. Install the following cables:

• | The temperature control cable (6). Refer to Temperature Control Cable Replacement .

• | The mode control cable (2). Refer to Mode Control Cable Replacement .

• | The refresh/recirc control cable (3). Refer to Vent Control Cables Replacement .

6. Install the A/C switch.
7. Install the illumination lamp socket to the heater face plate.
8. Install the IP cluster lower cover. Secure the cover with the screw.
9. Install the heater control unit lever knobs.
10. Install the radio. Refer to Radio Replacement in Entertainment.
11. Install the center console trim bezel. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gauges, and Console.
12. Adjust the temperature mode and fresh/recirc control cables. Refer to Temperature Control Cable Adjustment , Vent Control Cable Adjustment and Mode Control Cable Adjustment .