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Home >> Chevrolet >> 2016 >> Express 2500 Base, Van Cargo, 4.8L Eng VIN F >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Object Detection And Pedestrian Protection System) >> Diagnostic Information And Procedures (Object Detection And Pedestrian Protection System) >> Rear Vision Camera System Malfunction (Object Detection And Pedestrian Protection System) >> Rear Vision Camera System Malfunction (With Navigation Radio UYS)(Object Detection And Pedestrian Protection System) >> Circuit/System Testing (Object Detection And Pedestrian Protection System)
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Circuit/System Testing (Object Detection And Pedestrian Protection System)

WARNING: This page is about a different car, the 2015 GMC Savana 3500, 2015 GMC Savana 2500, 2015 Chevrolet Express 3500, and 2015 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Circuit/System Verification must be performed before Circuit/System Testing.

  1. Ignition OFF, disconnect the harness connector at the Rearview Camera.
  2. Test for less than 10 Ω between the ground circuit terminal 5 and ground.
    • If 10 Ω or greater 

      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 6 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 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, verify the fuse is OK and there is voltage at the fuse.
    3. If the circuit tests normal, test or replace the RUN/CRNK Relay.
    • If the test lamp illuminates 
  5. Engine running, park brake applied, transmission in REVERSE.
  6. Verify a test lamp illuminates between the control circuit terminal 3 and ground.
    • If the test lamp does not illuminate 
    1. Ignition OFF, disconnect the X5 harness connector at the Body Control Module.
    2. Test for infinite resistance between the control circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the Body Control Module.
    • If the test lamp illuminates 
  7. Ignition OFF, disconnect the X4 harness connector at the Radio, ignition ON.
  8. Test for less than 1 V between the signal circuit terminal listed below and ground:
    • Signal (+) circuit terminal 1 at the Rearview Camera.
    • Signal (-) circuit terminal 4 at the Rearview Camera.
    • 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 terminal listed below and ground:
    • Signal (+) circuit terminal 1 at the Rearview Camera.
    • Signal (-) circuit terminal 4 at the Rearview Camera.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  10. Test for less than 2 Ω in the signal (+) circuit end to end.
    • If 2 Ω or greater 

      Repair the open/high resistance in the circuit.

    • If less than 2 Ω 
  11. Test for less than 2 Ω in the signal (-) circuit end to end.
    • If 2 Ω or greater 

      Test the signal circuit for an open/high resistance.

    • If less than 2 Ω 
  12. Replace the Rearview Camera.
  13. Engine running, transmission in REVERSE, verify a clear rear vision image is displayed on the Radio.
    • If a clear rear vision image is not displayed on the Radio 

      Replace the Radio.

    • If a clear rear vision image displayed on the Radio 
  14. All Ok.
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