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Wiper Will Not Shut Off, Wipe Pattern Normal

  1. Determine if problem is a grounded wire leading from terminal 7. Disconnect terminals "1", "2" & "3". Remove lead from terminal "1" and reinstall connector. With wiper "OFF", ignition "ON", if wiper stops, check for a ground in wire from terminal "1" and check switch. If wiper continues to operate, continue to step 2. 
  2. Determine if problem is internal in motor gearbox relay or override switch circuit. Remove washer pump cover, reconnect terminals and disconnect YELLOW lead from terminal "1". With ignition "ON" and wiper "OFF", if wiper continues to run, gearbox relay is defective. If wiper shuts off, continue to step three.
  3. Check problem in washer pump programming mechanism. Observe if washer pump ratchet gear has rotated far enough to position projection on rim of ratchet gear lifting override switch contacts. If ratchet gear is in correct position, but switch contacts are closed, adjust contact gap to 0.025". If ratchet gear is in correct position and contacts are open, check YELLOW lead connection for grounding, if no ground can be found, replace switch and timing device. If ratchet gear is not rotated far enough to open override switch, check ratchet relay armature position. Relay armature leg should be in slot area of gear rim.
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