For 1990-2009 cars

### Removal Procedure

Warning: Refer to Battery Disconnect Warning in the Preface section.

Note: Only upon replacement of servo motor.

1. Disconnect the battery.
2. Remove the instrument panel insulator panel.

Remove the 2 retainers (1).

3. Remove the defrost valve actuator from the cam.

3.1. | Remove the 3 bolts (2).

3.2. | Release and disconnect the wiring harness plug.

### Installation Procedure

Note: Turn the cam (2). Affix adjuster tool to the adjuster aid (3).

1. Install the enclosed adjuster tool (1).

Caution: Refer to Fastener Caution in the Preface section.

2. Install the defrost valve actuator to the cam.

Connect the wiring harness plug of defrost actuator.

Tighten
Tighten the 3 bolts to 5 N·m (44 lb in).

3. Install the instrument panel insulator panel.

Tighten
Tighten the 3 retainers.

Note: Only upon replacement of servo motor.

4. Connect the battery.
5. For programming procedures, refer to Control Module References.
6. Perform the function inspection.