For 1990-2009 cars only
Diagnostic System Check - Entertainment
Perform the Diagnostic System Check - Vehicle before proceeding with these diagnostic procedures. Refer to 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. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
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. Refer to Circuit Testing and Wiring Repairs . |
| • | Video (-) circuit open or shorted to battery positive--Test the Video (-) circuit for an open or a short to battery positive. Refer to Circuit Testing and Wiring Repairs . |
| • | Auxiliary Control circuit open or shorted to ground--Test the Auxiliary Control circuit for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs . |
| • | 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. Refer to Circuit Testing and Wiring Repairs . If no short to ground is found, replace the radio. Refer to Radio Replacement . |
| • | Display to DVD Head Serial Data circuit open--Check the Display to DVD Head Serial Data circuit for an open. Refer to Circuit Testing and Wiring Repairs . If no open is found, replace the overhead console. Refer to VES Overhead Console Replacement . |
