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Wiper Motor: 626

  1. To check wiper motor, connect ammeter between battery and blue terminal. SeeFigure . For low speed, connect battery voltage to Blue wire terminal and ground the Blue/White terminal. For high speed, ground the Blue/Red terminal. On high speed, no load RPM should be 69-95. On low, it should be 50-60 RPM.
  2. Difference between high and low RPM should be at least 15 RPM. Current draw should be 3 amps. To check auto stop, ground the Black terminal and connect the lead wire between Blue/White and Blue/Black terminals. Stop the wiper blades in mid stroke.
  3. To check rear wiper motor, connect battery voltage to Blue/Red wire and ground the Blue/White wire. Motor should run steadily.
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