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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B1289: Video Display Brightness Control Signal >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2015 GMC Terrain and 2015 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  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.