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System Test

  1. Check for power to the switch by inserting test probe into the back of switch connector at the white-purple wire. If no power present, check fuse or circuit breaker. If power is present, make switch continuity check as follows.
  2. Remove washer switch knob and bezel screws. Pull switch and retainer away from back of dash, then remove retainer nut. Disconnect wiring and remove switch.
  3. Use an ohmmeter to check switch terminal continuity. With switch "OFF", continuity should exist between terminals 296 and 63. With switch "ON", continuity should exist between terminals 296, 63 and 58. With switch on "WASH", continuity should exist between 296, 63 and 941. See Figure.
  4. If switch is good, reconnect wiring. Remove wiring connector at wiper motor and check for power in red and white wires with switch and ignition "ON". Also check continuity to ground at black wire. If power and ground exist, replace wiper motor.
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