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Home >> Chevrolet >> 2013 >> Trax LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 96 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> Rear Vision Camera System Malfunction (Encore) >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2016 Chevrolet Trax and 2016 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF and all vehicle systems OFF, disconnect the X900 harness connector. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 10 Ω between the ground circuit terminal 7 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
    • If less than 10 Ω 
  3. Ignition ON.
  4. Verify a test lamp illuminates between the ignition circuit terminal 4 and ground.
    • If the test lamp does not illuminate and the circuit fuse is good 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ignition circuit end to end.
    • If the test lamp does not illuminate and the circuit fuse is open 
    1. Ignition OFF.
    2. Test for infinite resistance between the ignition circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the B87 Rearview Camera.
    • If the test lamp illuminates 
  5. Engine running, park brake applied, transmission in R.
  6. Verify a test lamp illuminates between the control circuit terminal 2 and ground.
    • If the test lamp does not illuminate 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ignition circuit end to end.
    • If the test lamp illuminates 
  7. Ignition OFF, disconnect the X1 harness connector at the A11 Radio, ignition ON.
  8. Test for less than 1 V between the signal circuit terminals listed below and ground:
    • A11 Radio signal (+) circuit terminal 5 X1
    • A11 Radio signal (-) circuit terminal 4 X1
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • If less than 1 V 
  9. Test for infinite resistance between the signal circuit terminals listed below and ground:
    • A11 Radio signal (+) circuit terminal 5 X1
    • A11 Radio signal (-) circuit terminal 4 X1
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  10. Test for less than 2 Ω between the A11 Radio signal (+) circuit terminal 5 X1 and the X900 signal (+) circuit terminal 3.
    • If 2 Ω or greater 

      Repair the open/high resistance on the circuit.

    • If less than 2 Ω 
  11. Test for less than 2 Ω between the A11 Radio signal (-) circuit terminal 4 X1 and the X900 signal (-) circuit terminal 8.
    • If 2 Ω or greater 

      Repair the open/high resistance on the circuit.

    • If less than 2 Ω 
  12. Replace the B87 Rearview Camera.
  13. Engine running, transmission in R,
  14. Verify a clear rear vision image is displayed on the P17 Info Display Module.
    • If a clear rear vision image is not displayed 

      Replace the A11 Radio.

    • If a clear rear vision image is displayed 
  15. All OK.
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