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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1360 (Wiring Systems And Power Management - DTC B0005 To DTC B1475) >> DTC B1433 >> Circuit/System Testing

Circuit/System 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 X5 harness connector at the BCM.
  2. Test for greater than infinite resistance between the BCM ignition circuit terminal 13 and ground.
    • If less than specified, test for a short to ground.
  3. If the circuit tests normal, test or replace the BCM.
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