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Home >> Chevrolet >> 2018 >> Cruze LS, Standard Trans >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Image Display Camera System >> Diagnostic Information and Procedures >> Rear Vision Camera System Malfunction (Hatchback with IOA) >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the B87 Rearview Camera. 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 4 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.
    • Go to next step: If less than 10 Ω 
  3. Ignition ON.
  4. Verify a test lamp illuminates between the ignition circuit terminal 5 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.
    • Go to next step: If the test lamp illuminates 
  5. Ignition OFF, disconnect the X1 harness connector at the A11 Radio, ignition ON.
  6. Test for less than 1 V between the signal circuit terminal listed below and ground:
    • A11 Radio signal (+) circuit terminal 15 X1
    • A11 Radio signal (-) circuit terminal 14 X1
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • Go to next step: If less than 1 V 
  7. Ignition OFF.
  8. Test for infinite resistance between the signal circuit terminal listed below and ground:
    • A11 Radio signal (+) circuit terminal 15 X1
    • A11 Radio signal (-) circuit terminal 14 X1
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • Go to next step: If infinite resistance 
  9. Test for less than 1 Ω between the A11 Radio signal (+) circuit terminal 15 X1 and the B87 Rearview Camera signal (+) circuit terminal 1
    • If 1 Ω or greater 

      Repair the open/high resistance in the circuit.

    • Go to next step: If less than 1 Ω 
  10. Test for less than 1 Ω between the A11 Radio signal (-) circuit terminal 14 X1 and the B87 Rearview Camera signal (+) circuit terminal 2
    • If 1 Ω or greater 

      Repair the open/high resistance in the circuit.

    • Go to next step: If less than 1 Ω 
  11. Replace the B87 Rearview Camera.
  12. Engine running, trunk/liftgate closed, park brake applied, transmission in R.
  13. 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.

    • Go to next step: If a clear rear vision image is displayed 
  14. All OK.
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