Front Wiper Motor
Spectrum
Connect ammeter to high speed circuit of motor. Current draw should be less than 3 amps.
Sprint
1) Remove wiper arm linkage. Remove wiper motor cover (if
equipped). Unplug wiring connector. Test low speed circuit by
applying 12 volts of battery current to terminal No. 3 (positive)
and grounding Black lead to battery ground.
2) If motor rotates at a low speed of 45-55 rpm, low speed
circuit is operating properly. See Fig 1. Connect battery positive
lead to terminal No. 4. Ground battery negative to wiper motor Black
lead. If motor rotates at a high speed of 68-78 rpm, high speed
circuit is working properly.
3) To test motor automatic stop circuit, connect battery
positive lead to terminal No. 4 and connect battery negative lead to
Black lead of wiper motor. Install a jumper wire between terminals No.
2 and No. 3. See Fig 1.
4) After repeating this test several times, motor should stop
in the same location each time. This will verify that automatic stop
circuit is working properly. See Fig 1.