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Home >> GMC >> 2015 >> Terrain SL, Gas >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1289: Video Display Brightness Control Signal >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON, radio ON, DVD playing.
  2. Verify the display brightness of the seatback video displays can be controlled using the infrared remote control to change the display mode.
    • If the display brightness cannot be controlled. 

      Refer to Circuit/System Testing

    • If the display brightnes can be controlled. 
  3. All OK.
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