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Intermittent Wiper Operation (Blades Stop At Random Positions)

  1. Remove wiper fuse and connect ammeter (0-30 amps) across fuse block terminals. Operate wipers in low speed. Observe lowest current draw (current draw will fluctuate).
  2. If lowest current draw exceeds 6.5 amps, go to step 3). If lowest current draw is 5-6.5 amps, repair wiper motor. Replace brush plate and circuit breaker assembly.
  3. Replace wiper blade elements and repeat test. If current draw is okay, problem is corrected. If lowest current draw still exceeds 6.5 amps, repair wiper motor. If current draw is okay, wiper transmission linkage is binding. Repair or replace as necessary.
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