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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Object Detection System And Pedestrian Protection System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B391F: Night Vision Camera >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify DTC B391F 59 or B391F 7F is not set.
    • If DTC is set 
    1. Replace the B276 Night Vision Camera
    2. Verify DTC B391F 59 or B391F 7F is set after replacing the B276 Night Vision Camera.
      • If the DTC does not set

        All OK.

      • If the DTC is set
    3. Replace the K172 Night Vision Control Module.
    • If the DTC is not set 
  3. Verify DTC B391F 55 or B391F 56 is not set.
    • If DTC is set 

      Replace the B276 Night Vision Camera

    • If the DTC is not set 
  4. Verify DTC B391F 74 is not set.
    • If DTC is set 
    1. Physically cycle each connection of the B276 Night Vision Camera cable.
    2. Verify DTC B391F 74 is set after cycling the cable connections.
      • If the DTC does not set

        All OK.

      • If the DTC sets after cycling the cable connections
    3. Replace the K172 Night Vision Control Module to B276 Night Vision Camera cables.
    4. Verify DTC B391F 74 is set after replacing the cables.
      • If the DTC does not set

        All OK.

      • If the DTC sets after replacing the cables
    5. Replace the B276 Night Vision Camera
    6. Verify DTC B391F 74 is set after replacing the B276 Night Vision Camera.
      • If the DTC does not set

        All OK.

      • If the DTC is set
    7. Replace the K172 Night Vision Control Module.
    • If the DTC is not set 
  5. All OK.
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