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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems - P Series Van >> Testing >> Wiper Motor Testing >> Wipers Do Not Operate In Hi

Wipers Do Not Operate In Hi

  1. Place ignition switch in RUN and wiper/washer switch in HI. Connect a fuse jumper from Purple wire at wiper/washer switch connector to ground.
  2. If wiper motor does not run, locate and repair open in Purple wire between wiper motor and wiper/washer switch. If open does not exist, replace wiper motor. If wiper motor runs, replace wiper/washer switch.
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