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Home >> Hummer >> 2008 >> H3 Alpha >> Repair and Diagnosis >> External Pages >> Different car >> Section 524 (Object Detection System) >> Diagnostic Information and Procedures >> Rear Parking Assist Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the rear parking assist display.
  2. Connect a 10A fused jumper wire between 12-volt reference circuit terminal A and B+.
  3. Connect a 10A fused jumper wire between control circuit terminal and ground of the appropriate LED listed below:
    • Left amber LED control circuit terminal B
    • Center amber LED control circuit terminal C
    • Red LED control circuit terminal D
  4. Verify that the appropriate LED illuminates.
    • If the component does not perform as specified, replace the rear parking assist display.
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