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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Wipers And Washers >> Diagnostic Information and Procedures >> Rear Wiper System Malfunction >> Component Testing

Component Testing

Rear Window Wiper Switch

  1. Ignition OFF, disconnect the harness connector at the rear wiper switch.
  2. Rear wiper switch OFF, test for infinite resistance between the ignition terminal 5 and the signal terminal 3.
    • If not the specified value, replace the rear wiper switch.
  3. Rear wiper switch in the ON position, test for 2.5-3.5K ohms between the ignition terminal 5 and the signal terminal 3.
    • If not within the specified range, replace the turn signal/multifunction switch.
  4. With the rear wiper switch in the DELAY position, test for 900-1.5K ohms between the ignition terminal 5 and the signal terminal 3.
    • If not within the specified range, replace the turn signal/multifunction switch.
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