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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Mirror System >> Diagnostic Information and Procedures >> Rearview Camera Full Display Mirror Malfunction >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF/vehicle OFF, disconnect the coax cable connector at the B87 Rearview Camera, and wait for 5 sec before checking the voltage.
  2. Ignition On/Vehicle in Service Mode, test for 7 - 10 V between the center conductor of the coax cable and the coax cable ground shield wires.
    • If the value within the range of 7 - 10 V 

      Replace the B87 Rearview Camera.

    • Go to next step: If the value outside range of 7 - 10V 
  3. Ignition OFF/vehicle OFF, disconnect the coax cable connector at the A10 Inside Rearview Mirror, and check for the supply voltage at the mirror.
  4. Ignition On/Vehicle in Service Mode, test for 9 - 16 V at the A10 Inside Rearview Mirror.
    • If the value within the range of 9 - 16 V 

      Test or replace the Replace the coax cable.

    • Go to next step: If the value outside range of 9 - 16V 
  5. Replace the A10 Inside Rearview Mirror.