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WIPER DIAGNOSIS

WIPER DIAGNOSIS. CHAPTER 11 LAB MANUAL. WIPER PROBLEMS. NO OPERATION INTERMITTENT OPERATION CONTINOUS OPERATION WIPER WILL NOT PARK MECHANICAL DEFECT. DIAGNOSTIC STRATEGY. USE WIRING DIAGRAMS DETERMINE IF ELECTRICAL OR MECHANICAL PROBLEMS

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WIPER DIAGNOSIS

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  1. WIPER DIAGNOSIS CHAPTER 11 LAB MANUAL

  2. WIPER PROBLEMS • NO OPERATION • INTERMITTENT OPERATION • CONTINOUS OPERATION • WIPER WILL NOT PARK • MECHANICAL DEFECT

  3. DIAGNOSTIC STRATEGY • USE WIRING DIAGRAMS • DETERMINE IF ELECTRICAL OR MECHANICAL PROBLEMS • USE PROCESS OF ELIMINATION BY OPERATING OTHER SYSTEM CIRCUITS • FAMILIARIZE WITH OPERATION

  4. NO OPERATION IN ONE SPEED ONLY • USE KNOWLEDGE OF SYSTEM TO ELIMINATE POSSIBLE PROBLEMS

  5. WIPERS WILL NOT PARK • MOST COMMON COMPLAINT • PARK SWITCH COULD BE FAULTY L391

  6. REPLACING WIPER MOTOR • CAUTION!!!! WIPER MOTORS = CONTINOUS BATTERY POWER! • DISCONNECT WIPER ARMS • REMOVE COWL PANELS 11-5L

  7. WIPER SWITCH TESTING 11-13L

  8. WIPER SWITCH REPLACEMENT 11-17L

  9. INTERMITTENT WIPER SYSTEM DIAGNOSIS

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