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Home >> Chevrolet >> 2015 >> Impala Limited LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Cellular System, Entertainment System And Navigation System) >> Diagnostic Information and Procedures >> DTC B12A4: Infotainment Faceplate Control Module A >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2015 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  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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