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Home >> Cadillac >> 2017 >> ATS Base, 4D Sedan, RWD, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B1282: Display not responding-signal amplitude >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2016 Cadillac CT6. 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 X3 and the A33 Media Disc Player 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 with the front display sourcing media from media disc player.
    • 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 A33 Media Disc Player.
      • 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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