Circuit/System Testing

2025 Chevrolet Equinox EV RS, AWDSECTION Circuit/System Testing

Circuit/System Testing DTC B1597 11, 13, 86

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

      Replace the component: K124 Image Processing Module

    • 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.

  9. Disconnect the electrical connector: Right Sideview Camera
  10. Locate the appropriate pinout adapter and load test loop adapter from EL-52552 COAX FAKRA Cable Adaptor Kit.
  11. Connect the 2 adapters together, measure and record the resistance between the terminals at the pinout adapter.
  12. Disconnect the 2 adapters and connect each one to the appropriate end of the coax cable.
  13. 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. 
  14. Replace the component: Right Sideview Camera
  15. Apply the parking brake.
  16. Engine Running - Transmission in Reverse
  17. 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 
  18. All OK.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.