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Circuit/System Testing

WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF.
  2. Verify the LVDS interface cable is properly connected at the P17 Info Display Module X2 and the K74 Human Machine Interface Control Module X5 connections and there is no damage to the cable or connections.
  3. Ignition ON, infotainment system ON.
  4. Verify the P17 Info Display Module does not display an image.
    • If the P17 Info Display Module displays an image. 

      All OK.

    • If the P17 Info Display Module does not display an image. 
  5. Ignition OFF.
  6. Replace the video interface cable.
  7. Ignition ON, infotainment system ON.
  8. Verify the P17 Info Display Module displays an image.
    • If the P17 Info Display Module does not display an image 
    1. Replace the P17 Info Display Module. Connect all harness connectors.
    2. Ignition ON, infotainment system ON.
    3. Verify the P17 Info Display Module displays an image.
      • If the P17 Info Display Module still does not display an image, replace the K74 Human Machine Interface Control Module.
      • If the P17 Info Display Module displays an image.
    4. All OK.
    • If the P17 Info Display Module displays an image. 
  9. All OK.
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