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Home › Cadillac › 2018 › XT5 Base, FWD › Repair and Diagnosis › Body & Frame › Ignition Switch/Steering Lock › Immobilizer System › Diagnostic Information and Procedures › DTC B305C › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Key Part Number parameter displays a Key Part Number when turning the ignition ON with each key/transmitter.
    • If a Key Part Number is not read 

      Replace the appropriate key/transmitter.

    • Go to next step: If a Key Part Number is read for each key 
  3. All OK.
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