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Test 3: Wipers High Mode Inoperative

  1. Turn ignition switch to RUN position. Move wiper/washer switch to HIGH position. Using DVOM connected to battery voltage, backprobe wiper/washer switch pigtail connector terminal "C" (Purple wire) at base of steering column. If reading is 10 volts or more, go to next step. If reading is less than 10 volts, replace wiper/washer switch assembly. See WIPER SWITCH  under REMOVAL & INSTALLATION.
  2. Using DVOM connected to battery voltage, backprobe pulse wiper control module terminal "C" (Purple wire). See Figure . Pulse wiper control module is tie strapped to engine wiring harness, under steering column support. If reading is less than 10 volts, replace pulse wiper control module. See PULSE WIPER CONTROL MODULE  under REMOVAL & INSTALLATION. If reading is 10 volts or more, repair open in Purple wire between pulse wiper control module terminal "C" and wiper/washer provision connector. See WIPER SWITCH  under REMOVAL & INSTALLATION.
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