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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1104 (Door Lock Systems & Door Handles) >> Diagnostic Information and Procedures >> DTC B3849 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, observe the scan tool driver door handle switch parameter while operating the exterior driver door handle. The reading should toggle between ACTIVE and INACTIVE.
  2. Ignition ON, observe the scan tool passenger door handle switch parameter while operating the exterior passenger door handle. The reading should toggle between ACTIVE and INACTIVE.
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