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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 1 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> DTC B127B: Rearview Camera Input >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine running, transmission in R.
  2. Verify a clear rear vision image is displayed on the P17 Info Display Module.
    • If a clear image is not displayed 

      Refer to Circuit/System Testing.

    • If a clear image is displayed 
  3. All OK.
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