Wiper Motor

Disconnect wiper motor harness connector. Connect battery positive to wiper motor terminal No. 3. See Fig 1. Connect battery negative to wiper motor terminal No. 1. If wiper motor operates at low speed, go to next step. If wiper motor does not operate at low speed, replace wiper motor.
Connect battery positive to wiper motor terminal No. 2. See Fig 1. Connect battery negative to wiper motor terminal No. 1. If wiper motor operates at high speed, go to next step. If wiper motor does not operate at high speed, replace wiper motor.
Disconnect positive lead from to wiper motor connector. With battery negative still connected to wiper motor connector terminal No. 1, connect a jumper wire between wiper motor terminals No. 3 and 5. Connect battery positive to terminal No. 6. Wiper motor should momentarily operate and then stop in park position. If operation is not as specified, replace wiper motor.

Fig 1: Identifying Wiper Motor Terminals