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Home >> Buick >> 2013 >> Verano Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 209 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> DTC B3849 >> Component Testing
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Component Testing

WARNING: This page is about a different car, the 2012 Buick Verano. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the B27D door handle switch - driver exterior.
  2. Test for infinite resistance between the signal terminal 2 and the ground terminal 1 with the switch in the open position.
    • If less than infinite resistance 

      Replace the B27D door handle switch - driver exterior.

    • If infinite resistance 
  3. Test for less than 3 Ω between the signal terminal 2 and the ground terminal 1 with the switch in the closed position.
    • If 3 Ω or greater 

      Replace the B27D door handle switch - driver exterior.

    • If less than 3 Ω 
  4. All OK