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Caprice, Custom Cruiser & Roadmaster

  1. Disconnect wiper/washer switch connector. Turn ignition switch to RUN position. Connect a test light between C216 terminal "B" and ground. If test light is on, go to step 2). If test light is off, check for open in fuse 10 or circuit No. 93 (White wire). If circuit is okay, check for open power feed circuit No. 4 (Brown wire).
  2. Disconnect wiper motor module connector C2. Connect a test light between C2 terminal "C" and battery voltage. If test light is on, go to test 3). If test light is off, check for open ground circuit No. 150 (Black wire).
  3. Reconnect connector C216. Disconnect wiper motor module connector C1. Connect a test light between C1 terminal "C" and ground. If test light is on, go to step 4). If test light is off, check for poor connection at connector C216, and check connector C204 for an open circuit No. 95 (Dark Green wire). If connections and circuit are okay, replace wiper/washer switch.
  4. Turn wiper/washer switch to LO position. Connect a test light between C1 terminal "B" and ground. If test light is on, go to step 5). If test light is off, check for poor connections at connectors C216 and C204. Also check for open circuit No. 91 (Gray wire). If connections and circuit are okay, replace wiper/washer switch.
  5. Use an ohmmeter to check for continuity from wiper motor module C1 terminal "A" to C2 terminal "B". If continuity is found, check for poor connections at wiper motor module connectors. If connections are okay, replace wiper motor module. If no continuity is found, check for open circuit No. 196 (Yellow wire).
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