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Home › Chevrolet › 2021 › Traverse L › Repair and Diagnosis › External Pages › Different car › Section 111 (Immobilizer System) › Diagnostic Information and Procedures › DTC B198A › Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the Programming and Setup procedure for the control module that set DTC B198A.
    NOTE:

    When performing the following step, Immobilizer System Component Programming, the module may also need to be reset by using the SPS function Prepare For Removal.

  2. Perform the Immobilizer System Component Programming Immobilizer System Component Programming .
  3. Verify DTC B198A does not set after programming.
    • If the DTC sets after programming 

      Replace the control module that set the DTC.

    • Go to next step: If the DTC does not set after programming 
  4. All OK.
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