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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 457 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Power Door Lock Key Cylinder Switches Inoperative >> Component Testing

Component Testing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the driver door latch.
  2. Test for infinite resistance between the signal terminal 9 and the low reference terminal 8 with the switch in the open position.
    • If not the specified value, replace the driver door latch.
  3. Test for less than 2 ohms between the signal terminal 9 and the low reference terminal 8 with the switch in the Unlock position.
    • If greater than the specified range, replace the driver door latch.
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