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Home › Chevrolet › 2021 › Traverse L › Repair and Diagnosis › External Pages › Different car › Section 65 (Image Display Cameras) › Diagnostic Information and Procedures › DTC B1A62 › Circuit/System Testing

Circuit/System Testing

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
  2. Replace the component:B87 Rearview Driver Information Camera
  3. Verify the DTC does not set.
    • If the DTC is not set 

      All OK.

    • Go to next step: If the DTC sets 
    4. NOTE:

    Before testing the coax cable, check the cable's exterior for being pinched, cut, damaged, or having loose connections at the components, all of which can cause reception issues.

  4. Disconnect the electrical connector:B87 Rearview Driver Information Camera and X9A11 Radio.
  5. Locate the appropriate pinout adapter and load test loop adapter from EL-52552 COAX FAKRA Cable Adaptor Kit.
  6. Connect the 2 adapters together, measure and record the resistance between the terminals at the pinout adapter.
  7. Disconnect the 2 adapters and connect each one to the appropriate end of the coax cable.
  8. At the pinout adapter test terminals, measure the total resistance of the coax cable loop including the connected load test adapter.
    • If not within 5 Ω of the reading from step 10. 

      Replace the coax cable

    • Go to next step: If within 5 Ω of the reading from step 10. 
    9. NOTE:

    Intermittent camera issues including blue or black screens, history DTCs, etc. can be caused by defective coax cables or coax cable connections. Inspect coax cables and connections for issues before replacing related control modules.

  10. Replace the component:A11 Radio
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