Rear Wiper Motor Inspection

WARNING: This page is about a different car, the 2004 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable.
Remove the liftgate lower trim. See LIFTGATE LOWER TRIM REMOVAL/INSTALLATION .
Disconnect the rear wiper motor connector.
Connect battery positive voltage to the rear wiper motor terminal A and the ground to a bare metal part of the vehicle and the rear wiper motor terminal B.
Verify that the rear wiper motor operates.
Disconnect the ground to the terminal B while the rear wiper is operating.

Fig 1: Inspecting Rear Wiper Motor Operation
Courtesy of MAZDA MOTORS CORP.
Verify that the rear wiper stops in the park position.
- If not as specified, replace the rear wiper motor.
  
  Fig 2: Verifying Rear Wiper Stops In Park Position
  Courtesy of MAZDA MOTORS CORP.