Wiper Motor Current Test
- Disengage wiper arm linkage from wiper motor. Unplug connector from wiper motor. Connect ammeter between positive battery terminal and LO terminal No. 5 (Dark Blue/Orange wire). See Fig 1
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- Connect jumper wire from ground to ground terminal No. 3 (Black wire) on wiper motor connector. Measure low speed current. Disconnect jumper wire from LO terminal No. 5. Connect jumper wire to HI terminal No. 4 (White wire) on wiper motor connector. Measure high speed current. In either test, current should not exceed 5.5 amps. Replace motor if current draw exceeds specification.
Courtesy of FORD MOTOR CO.