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Test 78B - Intermittent Wiper System

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For appropriate wiring diagram, see WIRING DIAGRAMS  at end of article.
  1. Disconnect multifunction switch 24-pin connector. See Figure . Check connector condition, and clean or repair connector as necessary. Perform VERIFICATION PROCEDURE VER-1. If connector condition is okay, reconnect multifunction switch 24-pin connector.
  2. Ensure DRB-II wiper motor actuator test is still running. Backprobe terminal No. 8 (Black wire) of multifunction switch 24-pin connector. If voltage does not pulsate between zero and 12 volts, repair open Black wire. Perform VERIFICATION PROCEDURE VER-1.
  3. If voltage pulsates between zero and 12 volts, ensure wiper switch is still in intermittent mode. Backprobe terminal No. 9 (Brown/White wire) of multifunction switch connector. If voltage does not pulsate between zero and 12 volts, replace multifunction switch. Perform VERIFICATION PROCEDURE VER-1. If voltage pulsates between zero and 12 volts, repair open Brown/White wire. Perform VERIFICATION PROCEDURE VER-1.
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