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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 137 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> Radio Information Display Malfunction (IOB) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify DTC B127E is not set.
    • Go to next step: If DTC B127E is not set. 
  2. Ignition ON/vehicle in Service Mode, A11 Radio ON.
  3. Verify the P17 Info Display Module turns on and information is shown on the display.
    • If the P17 Info Display Module does not turn on, or information is not shown clearly in the display. 

      Refer to Circuit/System Testing - Blank Screen

    • Go to next step: If the P17 Info Display Module turns on and information is shown on the display. 
  4. Verify the touch screen feature functions by touching a selection on the display.
    • If the display does not respond to the touch screen selection 

      Refer to Circuit/System Testing - Touch Screen

    • Go to next step: If the display responds to the touch screen selection 
  5. All OK.
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