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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 912 (Theft Deterrent System) >> Diagnostic Information and Procedures >> Content Theft Deterrent (CTD) Does Not Disarm with Key Lock >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. 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 assembly.
  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 door latch assembly.
  3. Test for less than 2.0 ohms of resistance between the signal terminal 9 and the low reference terminal 8 with the switch in the closed position.
    • If greater than the specified range, replace the door latch assembly.
  4. Test for infinite resistance between each terminal and the door latch assembly housing/case.
    • If not the specified value, replace the door latch assembly.
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