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Home >> Chevrolet >> 2025 >> Traverse Z71 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Image Display Cameras >> Diagnostic Information and Procedures >> Rear Vision Camera System Malfunction (K124 Image Processing Module) (UKL) >> Circuit/System Testing

Circuit/System Testing

  1. Ignition/Vehicle & All vehicle systems - Off
  2. Disconnect the electrical connector: X2 at the K124 Image Processing Module
  3. Wait for greater than 5 s.
  4. Connect appropriate EL-52552/EL-52552-50 pinout tool to the K124 Image Processing Module
  5. Ignition - On/Vehicle - In Service Mode
  6. Test for 7 to 11 V between the test points: Harness connector X2 signal circuit terminal 4 at the K124 Image Processing Module (component side) and ground
    • If not between 7 and 11 V 

      Replace the component: A11 Radio

    • Go to next step: If between 7 and 11 V 
  7. Ignition/Vehicle & All vehicle systems - Off
    8. 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.

  8. Disconnect the electrical connector: B87 Rearview Driver Information Camera
  9. Locate the appropriate pinout adapter and load test loop adapter from EL-52552/EL-52552-50 COAX FAKRA Cable Adaptor Kit.
  10. Connect the 2 adapters together, measure and record the resistance between the terminals at the pinout adapter.
  11. Disconnect the 2 adapters and connect each one to the appropriate end of the coax cable.
  12. 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. 
  13. Replace the component: B87 Rearview Driver Information Camera
  14. Apply the parking brake.
  15. Engine Running - Transmission in Reverse
  16. Verify the DTC does not set.
    • If the DTC is set 

      Replace the component: K124 Image Processing Module

    • Go to next step: If the DTC is not set 
  17. All OK.
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