Wiper Switch: Service and Repair

Fig. 8 Removing pivot arm:

Fig. 10 Ignition switch:

Fig. 11 Dimmer & ignition switch replacement:

1. Disconnect battery ground cable.
2. Remove steering column mounting bracket and unsnap switch connector from jacket.
3. Remove steering wheel.
4. Remove lock plate cover with a suitable screwdriver, Fig. 7.
5. Remove ring and lock plate. Use caution to prevent shaft from sliding out bottom of column. Slide upper bearing preload spring and turn signal cancelling cam off upper steering shaft, then the thrust washer off shaft.
6. Rotate turn signal lever-W/S switch assembly counterclockwise to stop (off position) and pull straight out to disengage.
7. Remove two screws, pivot arm and spacer, Fig. 8. Note that pivot arm retains spacer.
8. Lower steering column, then remove turn signal switch mounting screws and the switch.
9. Pull actuator rod to the stop to place ignition switch in ``Off-Unlock''. Remove upper attaching screw, releasing dimmer switch and actuator. The switches may now be removed, Figs. 10 and 11.
10. Remove remaining ignition switch retaining screw and the ignition switch.

Fig. 10 Ignition switch:

Fig. 12 Dimmer switch alignment:

INSTALLATION
1. Assemble windshield wiper switch and pivot assembly onto housing.
2. Assemble buzzer switch and lock cylinder, then turn lock cylinder clockwise to stop and then counterclockwise to other stop (OFF-UNLOCK) position. Position ignition switch, Fig. 10, then move slider to extreme left (ACC) and slide back two positions to the right to OFF-UNLOCK position. Install actuator rod into slider and install the bottom screw only, to retain the ignition switch. Do not move switch out of detent.
3. Install washer, spring and cancelling cam on steering shaft. Position cancelling cam lobes in relation to signal switch springs and assemble shaft lock and install new retaining ring, Fig. 7.
4. Install cover and snap ring, then install multi-function switch lever. Align lever pin with switch slot and push lever until it seats.
5. Install pinched end of dimmer switch actuator rod into dimmer switch, then install other end of rod into pivot switch. Install but do not tighten upper ignition switch screw. Depress dimmer switch and insert a 3/32 inch drill to lock switch body, Fig. 12.
6. Move dimmer switch up, removing lash between both switches and rod, then install and tighten upper ignition switch screw. Remove drill and check dimmer switch for proper operation.
7. Snap electrical connector into place and raise steering column, then install mounting nuts and torque to 22 ft. lbs. (30 Nm) and install steering wheel.