Wiper Motor: Testing and Inspection

1. Disconnect positive battery cable.
2. Disconnect linkage from motor and the electrical connector.

Fig. 3 Wiper Motor Current Draw Test. Except Aerostar:

3. Connect green lead from multimeter to battery negative post.
4. Connect positive lead of tester first to low speed connection and then to high speed connection at electrical connector. Current draw should not exceed 3 amps and the motor should run smoothly.