Wiper Motor: Service and Repair

REMOVAL AND INSTALLATION

Front
1. Disconnect and isolate the battery negative cable.
2. Remove the wiper arms from the wiper pivots.
3. Remove the one screw that secures the center of the cowl plenum cover/grille panel to the cowl plenum panel.
4. Remove the four screws that secure the cowl plenum cover/grille panel to the cowl panel near the base of the windshield.
5. Open and support the hood

Cowl Plenum Cover/Grille Panel Remove/Install:

6. Pull each end of the cowl to hood seal away from the metal flange where the dash panel and cowl plenum panel meet far enough to access the one screw that secures each outboard end of the cowl plenum cover/grille panel to the cowl plenum panel.
7. Remove the one screw that secures each outboard end of the cowl plenum cover/grille panel to the cowl plenum panel.
8. Carefully remove the cowl plenum cover/grille panel from the vehicle, so as not to damage the paint around the pivot openings of the panel.
9. Reach into the cowl plenum and unplug the wiper motor wire harness connector.

Wiper Module Assembly Remove/Install:

10. Remove the three screws that secure the wiper module mounting bracket to the cowl plenum panel.
11. Remove the wiper module from the cowl plenum as a unit.
12. Release the retainer that secures the wiper motor wire harness connector to the wiper module bracket.
13. Turn the wiper module over and remove the nut that secures the wiper linkage crank arm to the wiper motor output shaft.
14. Remove the three screws that secure the wiper motor to the wiper module mounting bracket.
15. Remove the wiper motor from the wiper module bracket.
16. Reverse the removal procedures to install. Tighten the mounting hardware as follows:
- Wiper motor screws - 6 Nm (53 in. lbs.)
- Crank arm nut - 11.5 Nm (101 in. lbs.)
- Wiper module bracket screws - 7.9 Nm (70 in. lbs.)
- Cowl plenum cover/grille panel screws - 1.7 Nm (15 in. lbs.).

Rear
1. Disconnect and isolate the battery negative cable.
2. From the outside of the lift glass, remove the rear wiper arm from the rear wiper motor output shaft.

Rear Wiper and Washer System:

3. From the outside of the lift glass, remove the rear wiper motor output shaft nut and bezel unit.
4. From the outside of the lift glass, remove the rear wiper motor output shaft rubber gasket.
5. From the inside of the lift glass, remove the three screws that secure the rear wiper motor cover to the motor.
6. Unplug the rear wiper motor wire harness connector.
7. Loosen, but do not remove, the right lift glass hinge nut.
8. From the inside of the lift glass, gently pull the rear wiper motor away from the lift glass until the output shaft clears the hole in the lift glass.
9. Move the motor towards the right side of the vehicle until the slotted hole in the motor mounting bracket clears the grommet under the right lift glass hinge nut.
10. Remove the rear wiper motor from the vehicle.
11. Reverse the removal procedures to install. Tighten the mounting hardware as follows:
- Wiper motor output shaft nut - 3.3 Nm (30 in. lbs.)
- Liftglass hinge nut - 6 Nm (53 in. lbs.)
- Wiper motor cover screws - 1.1 Nm (10 in. lbs.).