The wiring harness' for each headrest display screen are identical, they both contain power and ground, a right and left audio circuit, a video circuit, an infra-red (IR) circuit, and the a/v select circuit. The a/v select circuit, determines which source is selected to be displayed on the individual monitor. The source selection is made by pressing the source button on the display screen faceplate. Three separate sources are available. The DVD player itself is source a/v1. Each headrest display has an auxiliary input and is source a/v 2. The dvd player also has an auxiliary input and is source a/v 3.

The display screens in this system are wired exactly the same. In the event that one display has questionable operation, the connectors for the screens can be swapped at the a/v box to test for a display component failure or a circuit failure.

Schematic Reference

Video System Schematics

Connector End View Reference

Entertainment/Communication Connector End Views

Electrical Information Reference

One Display Inoperative

1. Turn ON the ignition. Play a disc in the DVD player. Press the power button on the suspect display. Select source a/v 1 using the menu button on the face plate.

⇒	If the DVD display powers up and plays the DVD, review system operation with the customer.

⇒	If the DVD display is dark or just the blue backlighting is on, swap the display harness connectors at the a/v box.

⇒	If the faulty condition follows the display. replace the display..

⇒	If the.faulty condition is in the same position. replace the a/v box.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Refer to the accessory installation instructions for replacement.