Wiper Module: Description
WARNING: This page is about a different car, the 2006 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The front wiper module is secured to the cowl plenum panel beneath the cowl plenum cover/grille panel. The ends of the wiper pivot shafts protrude through dedicated openings in the cowl plenum cover/grille panel to drive the wiper arms and blades and are the only visible components of the front wiper module.
The wiper module consists of the following major components:
- Bracket - The wiper module bracket (1) consists of a long tubular steel main member that has a stamped pivot bracket formation near each end where the two wiper pivots (2) are secured. The wiper module bracket is secured within the cowl plenum by two screws and a stud and nut through three rubber insulators (3). A stamped steel mounting plate (6) for the wiper motor (4) is secured with welds near the center of the main member.
- Crank Arm - The wiper motor crank arm (5) is a stamped steel unit with a slotted hole on the driven end that is secured to the wiper motor output shaft with a nut, and has a long ball stud secured to the drive end to accept the wiper linkage.
- Linkage - Two stamped steel drive links (7) connect the wiper motor crank arm to the wiper pivot lever arms (8). The right side drive link has a plastic socket-type bushing on each end. The left side drive link has a plastic socket-type bushing on one end, and a plastic sleeve-type bushing on the other end. The socket-type bushing on one end of each drive link is snap-fit over the ball stud on the lever arm of its respective pivot. The left side drive link sleeve-type bushing end is then fit over the motor crank arm ball stud, and the other socket-type bushing of the right side drive link is snap-fit over the exposed end of the wiper motor crank arm ball stud.
- Motor - The wiper motor is secured with three bolts to the motor mounting plate near the center of the wiper module bracket. The wiper motor output shaft passes through a hole in the module bracket, where a nut secures the wiper motor crank arm to the motor output shaft. The two-speed permanent magnet wiper motor features an integral transmission, an internal park switch, and an internal automatic resetting circuit breaker.
- Pivots - The two front wiper pivots are secured to the ends of the wiper module bracket. The lever arms that extend from the bottom of the pivot shafts each have a ball stud on their end. The upper end of each pivot shaft where the wiper arms will be fastened each is tapered and serrated with a threaded stud formation at the tip.
The front wiper module cannot be adjusted or repaired. If any component of the module is ineffective or damaged, the entire front wiper module unit must be replaced.