This dual head rest display system is powered through the a/v box. The a/v box receives power through the power filter module from the special equipment options fuse. The ground circuit for the a/v box also goes through the power filter module. The DVD Player the FM modulator and both of the headrest video displays get their power and ground circuits via the a/v box.

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

Video System Schematics

Electrical Information Reference

1. Ignition OFF, disconnect the a/v box harness connector C2.
2. Ignition ON, verify that a test lamp illuminates between the ground circuit terminal 9 and battery +.

⇒	If the test lamp does not illuminate, test the ground circuit for an open/high resistance.

3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 7 and ground.

⇒	If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.

⇒	If the circuit tests normal and the SEO ACCY fuse is open, test the B+l circuit terminal 7 for a short to ground.

4. Ignition OFF, connect the a/v box harness connector C2
5. Ignition ON, operate the DVD player in play mode.
6. Is the system operating normally.

⇒	If yes, review the system operation with the customer.

⇒	If no, test the power and ground circuits to the DVD player.

7. If the circuits test ok , replace the a/v box,

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Refer to the accessory installation instructions for replacement.