Section 01-16: Wiper and Washer Systems
1993 Mustang Workshop Manual
DIAGNOSIS AND TESTING

Wiper Motor Current Draw

Tools Required:

Disconnect battery. Disconnect linkage from the motor and disconnect the electrical plug to test the motor on the vehicle. Connect the green lead from the Rotunda Starting and Charging Tester 078-00005 or equivalent to the battery positive post and connect terminal G2 to body ground. Connect the positive (red) lead from the tester first to the low-speed connection and then to the high-speed connections at the connector plug as shown. In either case, current draw should not exceed 3 amperes.