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Home >> Cadillac >> 2019 >> XT5 Base, FWD >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC B3976 >> Circuit/System Verification

Circuit/System Verification

  1. Verify the engine starts with each available key/transmitter.
    • If the engine does not start with a key/transmitter 

      Replace the key/transmitter.

    • Go to next step: If the engine starts with all keys/transmitters 
  2. All OK.
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