Turn Signals: Service and Repair
Turn Signal Cancelling Cam ReplacementWARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIR BAGS AND SEAT BELTS/AIR BAGS BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
REMOVAL
NOTE: Before starting this procedure, be certain to turn the steering wheel until the front wheels are in the straight-ahead position.
1. Place the front wheels in the straight-ahead position.
2. Remove the driver side airbag module from the steering wheel.
3. Disconnect the steering wheel wire harness connector from the upper clockspring connector receptacle, which is located between the two upper spokes of the armature within the hub cavity of the steering wheel.
4. Remove the nut that secures the steering wheel armature to the steering column upper shaft, which is located within the hub cavity of the steering wheel.
Steering Wheel Remove/Install:
Steering Wheel Armature Pockets:
5. Pull the steering wheel off of the steering column upper shaft spline using a two-jawed puller (Special Tool C-3894-A). When installing the puller onto the steering wheel, be certain that each jaw of the puller is seated in the pocket that is cast into the underside of the steering wheel armature on each side of the hub. Also, if the clockspring is to be reused, be certain not to damage or deform the clockspring case when positioning the jaws of the puller below the steering wheel armature hub.
Steering Column Shrouds Remove/Install:
6. Remove the screw that secures the lower tilting steering column shroud to the steering column multi- function switch mounting housing.
7. Unsnap the two halves of the tilting steering column shroud from each other and remove both halves from the steering column.
8. Disconnect the instrument panel wire harness connectors from the lower clockspring connector receptacles, the right multi-function switch connector receptacle and the left multi-function switch connector receptacle.
Multi-Function Switch Mounting Housing Screw Remove/Install:
9. From the underside of the steering column, remove the one screw that secures the multi-function switch mounting housing to the top of the column housing.
Multi-Function Switch Mounting Housing Remove/Install:
10. Pull the multi-function switch mounting housing, the clockspring and both multi-function switches from the top of the steering column as a unit.
Clockspring Remove/Install:
11. Remove the two screws that secure the clockspring case to the multi-function switch mounting housing.
12. Remove the clockspring from the multi-function switch mounting housing.
13. Remove the turn signal and hazard warning switch from the multi-function switch mounting housing.
14. Remove the wiper and washer switch from the multi-function switch mounting housing.
INSTALLATION
If the clockspring is not properly centered in relation to the steering wheel, steering shaft and steering gear, it may be damaged.
NOTE: Before starting this procedure, be certain that the front wheels are still in the straight-ahead position.
1. Install the wiper and washer switch onto the multi-function switch mounting housing.
2. Install the turn signal and hazard warning switch onto the multi-function switch mounting housing.
Turn Signal Cancelling Cam Alignment:
3. Rotate the turn signal cancelling cam in the multi-function switch mounting housing until the alignment hole in the one cam lobe is aligned with the alignment hole in the back of the housing. The oblong hole in the hub of the cam should now be at the top, and the locating tab in the hub of the cam should be at the bottom.
4. While holding the centered clockspring hub and case stationary in relationship to each other, align and seat the three pins in the clockspring hub with the three holes in the hub of the turn signal cancelling cam. It should be noted that when the clock- spring is properly centered the uppermost pin in the clockspring hub is an oblong pin, and it will only fit in the oblong hole in the hub of the turn signal cancelling cam.
5. Align and seat the one pin and the two mounting holes on the clockspring case to their respective holes in the multi-function switch mounting housing.
6. Install and tighten the two clockspring mounting screws. Tighten the screws to 2.5 Nm (22 in. lbs.).
7. Position the multi-function switch mounting housing, the clockspring and both multi-function switches onto the top of the steering column as a unit. The locating tab in the hub of the turn signal cancelling cam must be engaged with the alignment groove in the bottom of the upper steering column shaft.
8. From the underside of the steering column, install and tighten the one screw that secures the multi-function switch mounting housing to the top of the column housing. Tighten the screw to 1.9 Nm (17 in. lbs.).
9. Reconnect the instrument panel wire harness connectors to the lower clockspring connector receptacles, the right multi-function switch connector receptacle and the left multi-function switch connector receptacle.
10. Position the lower tilting steering column shroud to the steering column.
11. Install and tighten the screw that secures the shroud to the multi-function switch mounting housing. Tighten the screw to 1.9 Nm (17 in. lbs.).
12. Position the upper tilting column shroud to the steering column with the hazard warning switch button inserted through the hole in the upper surface of the shroud. Align the upper tilting steering column shroud to the lower shroud and snap the two shroud halves together.
13. Install the steering wheel to the steering column upper shaft. Be certain to index the alignment splines in the hub of the steering wheel armature with the splines on the shaft. Pull the clockspring wire harness through the hole between the two upper steering wheel armature spokes.
14. Install and tighten the steering wheel mounting nut. Tighten the nut to 47 Nm (420 in. lbs.). Be certain not to pinch the wire harnesses between the steering wheel and the nut.
15. Reconnect the steering wheel wire harness connector to the upper clockspring connector receptacle, which is located between the two upper spokes of the armature within the hub cavity of the steering wheel.
16. Install the driver side airbag module onto the steering wheel.