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Wipers Operate At High Speed; Switch In LO Position

  1. Unplug wiper motor connector. Turn ignition on. Set wiper/washer switch to LO position. Using test light, probe Blue wire at wiper motor connector. If test light comes on, go to step 3). If test light does not come on, go to next step.
  2. Using a DVOM, check Blue wire for resistance between combination switch and wiper motor. If resistance is greater than 3.0 ohms, repair Blue wire. If resistance is 3.0 ohms or less, replace wiper motor.
  3. Turn wiper switch off. Using a DVOM, check for short to battery voltage in Blue wire between combination switch and wiper motor. If wire is okay, replace combination switch. If test light does not come on, replace wiper motor.
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