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Home >> Cadillac >> 1996 >> Seville SLS >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System And Washer System >> Adjustments >> Wipers Do Not Operate In Any Mode >> With Rain Sense Module
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With Rain Sense Module

  1. Disconnect wiper motor 3-pin connector. Turn ignition switch to RUN position. Turn wiper switch to HI position. Connect test light between chassis ground and Purple wire terminal of wiper motor connector. If test light is off, go to step 6).
  2. If test light is on, connect test light between Purple wire and Black wire terminal of wiper motor 3-pin connector. If test light is off, repair open Black wire.
  3. If test light is on, reconnect wiper switch connector. Disconnect wiper motor 8-pin connector. Connect test light between chassis ground and Gray wire terminal of wiper motor 8-pin connector. If test light is on, go to next step. If test light is off, check for open Gray wire. If Gray wire is okay, replace wiper switch.
  4. Turn wiper switch to LO position. Connect test light between chassis ground and Dark Green wire terminal of wiper motor 8-pin connector. If test light is on, go to next step. If test light is off, check for open Dark Green wire. If Dark Green wire is okay, replace wiper switch.
  5. Using a DVOM, check continuity of Yellow wire between wiper motor 3-pin and 8-pin connectors. If there is no continuity, repair open Yellow wire. If there is continuity, check for poor wiring connection at wiper motor. If connection is okay, replace wiper motor cover (circuit board). See Figure and Figure . If symptom still exists, replace wiper motor.
  6. Reconnect wiper motor 3-pin connector. Disconnect wiper switch connector. Turn ignition switch to RUN position. Connect test light between chassis ground and Yellow wire terminal of wiper switch connector. If test light is off, go to next step. If test light is on, check for poor connection between accessory relay and wiper switch. Repair as necessary. If connections are okay, repair open Yellow wire. If wire is okay, replace wiper switch.
  7. Reconnect wiper switch connector. Connect test light between chassis ground and Orange wire terminal of accessory relay connector. If test light is on, go to next step. If test light is off, replace fuse or repair open Orange wire.
  8. Connect test light between chassis ground and Yellow wire terminal (10-amp fuse side) of accessory relay connector. If test light is on, go to next step. If test light is off, replace fuse or repair open Yellow wire.
  9. Connect test light between Yellow wire terminal (10-amp fuse side) of accessory relay connector and Black wire terminal (ground wire). If test light is on, check for open Yellow wire between accessory relay and wiper switch. If Yellow wire is okay, replace accessory relay. If test light is off, repair Black ground wire.
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