Dual DVD Rear Seat Entertainment Headrest Video Does Not Synchronize

Dual DVD Rear Seat Entertainment Headrest Video Does Not Synchronize

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions)provides an overview of each diagnostic category.

Reference Information
Schematic Reference

Video System Schematics (Video System Schematics)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

Circuit/System Testing

Important: Before performing this diagnostic verify that both DVD displays turn on and operate normally. If one or more displays are inoperative, go to Dual DVD Rear Seat Entertainment Headrest Display Inoperative - One or More (Dual DVD Rear Seat Entertainment Headrest Display Inoperative - One or More).


1. Turn ON the ignition, press the power button on one of the displays and insert a DVD. Operate the DVD player in play mode.
2. Press the power button on the other display. Press the source button to view the DVD video playing on the adjacent display. Verify that the video displays do not synchronize.

• Test or repair the suspect video in/out signal circuit for a short to B+, short to ground or open circuit. If all circuits test normal replace the DVD control module.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

Refer to Dual DVD Rear Seat Entertainment Headrest Package Installation