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Front Wiper Motor Test

  1. Turn ignition switch to ACCESSORY or ON position. Using a voltmeter, backprobe wiper motor connector terminal No. 1 (Light Green/Black wire). See Figure . Check for battery voltage at connector terminal. If battery voltage does not exist, repair open Light Green/Black wire between connector and intermittent wiper control module. Intermittent wiper control module is mounted to lower instrument panel, behind knee bolster, near steering column. If battery voltage exists, go to next step.
  2. Place wiper switch in LOW position. Backprobe wiper motor connector terminal No. 5 (Brown/White wire). Check for battery voltage at connector terminal. If battery voltage does not exist, repair open Brown/White wire between connector and intermittent wiper control module. If battery voltage exists and wipers do not function, replace faulty wiper motor and go to next step.
  3. Place wiper switch in HIGH position. Backprobe wiper motor connector terminal No. 6 (Red/Yellow wire). Check for battery voltage at connector terminal. If battery voltage does not exist, repair open Red/Yellow wire between connector and intermittent wiper control module. If battery voltage exists and wipers do not function, replace faulty wiper motor and go to next step.
  4. Place wiper switch in LOW or HIGH position. Backprobe wiper motor connector terminal No. 2 (Tan/Red wire). Check for battery voltage at wiper motor connector terminal. Place wiper switch in OFF position. If battery voltage exists and wipers fail to PARK, replace faulty wiper motor. If battery voltage does not exist, replace faulty wiper motor.
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