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Home >> Cadillac >> 2019 >> XT5 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC B389A >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 Cadillac XT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify DTC B389A did not set immediately following the replacement and programming of the K9 Body Control Module.
    • Go to next step: If the DTC did not set immediately after the replacement and programming of the K9 Body Control Module 
  2. Perform the K9 Body Control Module immobilizer learn using body control module IMMO Function with Existing Transponder or Remote Key in SPS. Refer to Immobilizer System Component Programming (without BTM) Immobilizer System Component Programming (with BTM) .
  3. Verify DTC B389A does not set after programming.
    • If the DTC sets after programming 

      Replace the K9 Body Control Module.

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