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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1397 (Theft Deterrent System) >> Diagnostic Information and Procedures >> Pickup Box Bed Sensor Inoperative >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis 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 bed sensor.
  2. With the switch open, test for infinite resistance between the signal circuit terminal A and the ground circuit terminal B.
    • If not the specified value, replace the bed sensor.
  3. With the switch closed, test for less then 5 ohms between the signal circuit terminal A and the ground circuit terminal B.
    • If greater than the specified range, replace the bed sensor.
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