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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 192 (Door Lock Systems & Door Handles) >> Diagnostic Information and Procedures >> Power Door Locks Inoperative - Rear >> Component Testing

Component Testing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Door Latch Assembly

  1. Ignition OFF, disconnect the harness connector at the appropriate door latch assembly.
  2. Install a 25-amp fused jumper wire between the lock control terminal and 12 volts. Momentarily install a jumper wire between the unlock control terminal and ground. The door lock should perform the LOCK/ UNLOCK function.
    • If the function does not perform as specified, replace the door lock.
  3. Reverse the jumper wires; the appropriate door lock should perform the UNLOCK/LOCK function.
    • If the function does not perform as specified, replace the door lock.
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