Rear Wiper Motor: Description

Fig 1: Rear Wiper Motor

Courtesy of DAIMLERCHRYSLER CORP.

The rear wiper motor is concealed within the tailgate, below the rear flip-up glass opening and behind the tailgate inner trim panel. The end of the motor output shaft that protrudes through the tailgate outer panel to drive the rear wiper arm and blade is the only visible component of the rear wiper motor. See Fig 1. A rubber gasket, a bezel, and a nut secure and seal the motor output shaft to the tailgate outer panel. A molded plastic nut cover snaps onto the bezel to conceal the nut and improve appearance. An integral connector receptacle connects the rear wiper motor to the vehicle electrical system through a dedicated take out and connector of the tailgate wire harness. The rear wiper motor consists of the following major components:

• Bracket  - The rear wiper motor bracket consists of a stamped steel mounting plate for the wiper motor that is secured with screws through two rubber insulators to the tailgate inner panel.
• Rear Wiper Module  - The rear wiper motor electronic controls are concealed beneath a molded plastic cover and includes the rear wiper system electronic logic and rear wiper motor electronic controls.
• Motor  - The permanent magnet rear wiper motor is secured with screws to the rear wiper motor bracket. The wiper motor includes an integral transmission, and the motor output shaft.

The rear wiper motor cannot be adjusted or repaired. If any component of the motor is faulty or damaged, the entire rear wiper motor unit must be replaced. The motor output shaft gasket, bezel, nut, and nut cover are available for individual service replacement.