Video Display Is Poor or Blank

VIDEO DISPLAY IS POOR OR BLANK

DIAGNOSTIC SYSTEM CHECK - ENTERTAINMENT
Always perform the Diagnostic System Check - Vehicle before proceeding with these diagnostic procedures. Refer to Diagnostic System Check - Vehicle in Vehicle DTC Information. Diagnostic System Check - Vehicle

VIDEO DISPLAY IS POOR OR BLANK

IMPORTANT: The following information lists the most probable cause of the concern to the least probable cause, followed by the appropriate test for the condition. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with the replacement.

Schematic Reference: Video System Schematics
- Video positive circuit open, shorted to battery positive, or shorted to ground-Test the Video (+) circuit for an open, short to battery positive, or a short to ground.
- Video (-) circuit open or shorted to battery positive-Test the Video (-) circuit for an open or a short to battery positive.
- Auxiliary Control circuit open or shorted to ground-Test the Auxiliary Control circuit for an open or a short to ground.
- DVD Head to Display Serial Data circuit shorted to ground-At the overhead display connector, check for varying DC voltage on the DVD Head to Display Serial Data circuit. If no varying DC voltage is found, check for a short to ground. If no short to ground is found, replace the radio.
- Display to DVD Head Serial Data circuit open-Check the Display to DVD Head Serial Data circuit for an open. If no open is found, replace the overhead console.