Motor-Rear Window Wiper: Description
The rear wiper motor (4) is concealed within the liftgate, below the liftgate glass and behind the liftgate inner trim panel. The end of the motor output shaft (2) that extends through the liftgate outer panel to drive the rear wiper arm and blade is the only visible component of the rear wiper motor. A rubber bezel and grommet is engaged within the output shaft hole of the liftgate outer panel and seals the output shaft where it passes through the panel. An integral connector receptacle (3) connects the rear wiper motor to the vehicle electrical system through a dedicated take out and connector of the liftgate wire harness. The rear wiper motor consists of the following major components:
- Bracket (5) - The rear wiper motor bracket consists of a molded plastic mounting plate for the wiper motor that is secured with screws to the wiper motor housing, and through two screws with rubber isolators (1) to the liftgate inner panel.
- Electronic Controls - The rear wiper motor electronic controls include the rear wiper system electronic logic. The electronic controls for the motor include an electronic speed control that speeds the wiper blade near the center of the glass, but slows the wiper blade during directional reversals at each end of the wipe pattern and during wiper arm and blade off-the-glass parking for quieter operation.
- Motor - The single-speed permanent magnet rear wiper motor is secured to the rear wiper motor bracket. The wiper motor includes an integral transmission, motor output shaft, automatic resetting circuit breaker and the rear wiper motor park switch.
The rear wiper motor cannot be adjusted or repaired. If any component of the motor is ineffective or damaged, the entire rear wiper motor unit must be replaced. The motor output shaft bezel and grommet, and the mounting nut are available for individual service replacement.