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TEST 41A - Identifying Intermittent Wiper Problem

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .
  1. Turn ignition switch to ON position. Operate front wipers in all modes. If a problem exists with low or high speed wiper functions, see WIPER/WASHER SYSTEMS article in the ACCESSORIES/SAFETY EQUIPMENT Section. If wipers operate in intermittent (delay) mode, perform TEST 42A .
  2. If wipers operate in all intermittent ranges, perform TEST 42A . If washer pump does not operate, perform TEST 43A . If washer pump operates, turn wiper switch to intermittent (delay) position. Actuate wiper motor test using DRB-II. If wiper motor operates, perform TEST 41B .
  3. If wiper motor does not operate, using DRB-II, stop wiper motor test. Turn ignition switch to ON position. Remove and inspect fuse No. 5 from fuse block. If fuse is blown, perform TEST 41C . If fuse is okay, place DRB-II in voltmeter mode. Probe Black/White wire (in fuse block) to fuse No. 5.
  4. If voltage is less than 10 volts, repair open Black/White wire between fuse No. 5 and ignition switch. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If voltage is more than 10 volts, replace fuse No. 5. Disconnect body controller Blue connector. Body controller is located under left side of instrument panel. Check connector, and clean or repair connector as necessary.
  5. Probe terminal No. 11 (Dark Blue wire) of body controller Blue connector. If voltage is less than 10 volts, repair open Dark Blue wire between fuse No. 5 and Blue connector. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If voltage is more than 10 volts, turn ignition switch to OFF position.
  6. Access multifunction switch Black connector. Check connector, and clean or repair connector as necessary. Probe terminal No. 4 (Dark Blue wire) of multifunction switch Black connector. If voltage is less than 10 volts, repair open Dark Blue wire between fuse No. 5 and multifunction switch connector. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .
  7. If voltage is more than 10 volts, disconnect wiper motor connector. Check connector condition and clean or repair connector as necessary. Probe Dark Blue wire of wiper motor connector. If voltage is less than 10 volts, repair open Dark Blue wire between fuse No. 5 and wiper motor connector. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .
  8. If voltage is more than 10 volts, place DRB-II in ohmmeter mode. Probe Black wire of multifunction switch connector. If resistance is more than 5 ohms, repair open Black wire. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If resistance is less than 5 ohms, probe Dark Green wire at wiper motor connector.
  9. If resistance is more than 5 ohms, repair open Dark Green wire. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS . If resistance is less than 5 ohms, replace wiper motor. Perform VERIFICATION TEST - VERIFICATION OF REPAIRS .
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