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Home >> Chevrolet >> 2014 >> Impala Limited LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B127E: Front Video Display (with IO3) >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2014 Chevrolet Impala. 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 A11 Radio X7 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 A11 Radio.
      • 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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