Section 01-16: Wiper and Washer Systems
1996 F-150, F-250, F-350, F-Super Duty and Bronco Workshop Manual
DIAGNOSIS AND TESTING

Symptom Chart — Wiper And Washer Systems

NOTE: Use Rotunda Digital Volt-Ohmmeter 014-00407 or equivalent to perform electrical pinpoint tests.

WIPER AND WASHER SYSTEMS
ConditionPossible SourceAction
  • Windshield Washer Inoperative
  • Low fluid level.
  • Split, loose, pinched or kinked windshield washer hose.
  • Open in multi-function switch.
  • Windshield washer pump.
  • Windshield Wipers Inoperative — All Control Switch Positions
  • Blown fuse.
  • Windshield wiper motor.
  • Multi-function switch.
  • Bent or damaged windshield wiper motor linkage.
  • Wiper control module.
  • Open wire or connector.
  • Windshield Wipers Inoperative at High Speed
  • Open circuitry/connector.
  • Multi-function switch.
  • Wiper control module.
  • Windshield wiper motor.
  • Windshield Wipers Inoperative at Low Speed
  • Multi-function switch.
  • Windshield wiper motor.
  • Open wiring.
  • Wiper control module.
  • Windshield Wipers Inoperative at Interval Setting
  • Turn signal and windshield wiper switch.
  • Wiper control module.
  • Open wiring.
  • Wipers Will Not Park at Proper Position
  • Windshield wiper motor.
  • Wiper control module.
  • Multi-function switch.
  • Windshield Wipers Continue to Run When Switch Is Turned Off
  • Windshield wiper motor.
  • Wiper control module.
  • Multi-function switch.