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Home › Chevrolet › 2014 › Impala LS › Repair and Diagnosis › Accessories & Equipment › Infotainment › Cellular System, Entertainment System, And Navigation System › Diagnostic Information and Procedures › DTC B12A4: Infotainment Faceplate Control Module › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify DTC B12A4 39 is not set.
    • If DTC B12A4 39 is set 

      Replace the P17 Info Display Module.

    • If DTC B12A4 39 is not set 
  3. Verify DTC B12A4 45 is not set.
    • If DTC B12A4 45 is set 
    1. Program the P17 Info Display Module.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the P17 Info Display Module.
      • If the DTC does not set
    3. All OK
    • If DTC B12A4 45 is not set 
  4. All OK.
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