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Home >> Buick >> 2013 >> Enclave Premium, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Object Detection System) >> Diagnostic Information and Procedures >> Rear Vision Camera System Malfunction >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2010 Cadillac SRX. 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 5 Ω between the ground circuit terminal 5 and ground.
    • If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify a test lamp illuminates between the ignition circuit terminal 6 and ground.
    • If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  4. Engine running, park brake applied, transmission in REVERSE, test for greater than 11 V between the control circuit terminal 3 and ground.
    • If less than the specified value, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
  5. Ignition OFF, disconnect the X4 harness connector at the A11 Radio.
  6. Ignition ON, test for less than 0.3 V between the following signal circuit terminals at the rearview camera harness connector and ground:
    • Signal (+) circuit terminal 1
    • Signal (-) circuit terminal 4
    • If greater than the specified value, test the signal circuit for a short to voltage.
  7. Test for infinite resistance between the following circuit terminals at the rearview camera harness connector and ground:
    • Signal (+) circuit terminal 1
    • Signal (-) circuit terminal 4
    • If not the specified value, test the circuit for a short to ground.
  8. Test for less than 5 Ω between the signal (+) circuit terminal 1 at the rearview camera harness connector and the signal (+) circuit terminal 5 X4 at the A11 Radio harness connector.
    • If greater than the specified value, test the signal circuit for an open/high resistance.
  9. Test for less than 5 Ω between the signal (-) circuit terminal 4 at the rearview camera harness connector and the signal (-) circuit terminal 15 X4 at the A11 Radio harness connector.
    • If greater than the specified value, test the signal circuit for an open/high resistance.
  10. If all circuits test normal, replace the rearview camera.
  11. 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, replace the A11 Radio.
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