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Home >> Chevrolet >> 2021 >> Traverse L >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Cellular, Entertainment, And Navigation System) >> Diagnostic Information and Procedures >> DTC B1B19 >> 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. Ignition On/Vehicle in Service Mode. Control Module ON.
  2. Verify DTC B1B19 is not set in Control Module.
    • If DTC B1B19 is set in Control Module 

      Replace the Control Module.

    • Go to next step: If DTC B1B19 is not set in Control Module 
  3. All OK.
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