Video Entertainment System Malfunction
Video Entertainment System Malfunction
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 provide an overview of each diagnostic category.
Diagnostic Fault Information
Circuit Description
The rear seat entertainment (RSE) system utilizes the vehicle radio to play DVD movies and transmit video signals to the rear digital video disc (DVD) display. When the radio is turned ON, the DVD display receives a voltage signal from the radio via the entertainment remote enable signal circuit indicating the system status. The video high and low signal circuits are used to transmit the DVD images to the rear DVD display. The video high (+) voltage will vary as the brightness and the speed of the image varies.
Diagnostic Aids
A known good DVD disk is any original DVD, NOT a copy. An original DVD will give you the best results whereas a copied DVD can alter the voltage readings.
Reference Information
Schematic Reference
Video System Schematics Video System Schematics
Connector End View Reference
Component Connector End Views A/C Compressor Clutch
Description and Operation
Video Entertainment System Description and Operation (Non-Headrest DVD Systems) Video Entertainment System (Non-Headrest DVD Systems)Video Entertainment System Description and Operation (Dual Headrest DVD Systems) Video Entertainment System (Dual Headrest DVD Systems)
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
Scan Tool Reference
Control Module References Programming and Relearning for scan tool information
Circuit/System Verification
1. Ignition ON, vehicle in Park. Operate the DVD entertainment system using several known good DVD disks.
If the radio does not display the DVD, replace the radio.
2. RSE ON, observe the rear DVD screen. Verify the rear video display operates normally.
If the rear video display does not operate normally, refer to circuit testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the appropriate DVD display.
2. Test for less than 5.0 ohms between the ground circuit terminal 6 and ground.
• If greater than specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, DVD playing, test for B+ between the entertainment remote enable B+ circuit terminal 8 and ground.
• If less than specified range, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
4. Test for B+ between the battery positive voltage circuit terminal 7 and ground.
• If less than specified range, test the voltage supply circuit for a short to ground or an open/high resistance.
5. Test for 1-8 V between the video bright control circuit terminal 9, and ground.
• If greater then specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the radio.
• If less then specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
6. Test for 40 mV -3.0 V between the video mode signal circuit terminal 10, and ground.
• If greater then specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.
• If less then specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
7. Ignition OFF, disconnect the X3 harness connector at the radio. Test for infinite resistance between the circuits listed below and ground:
* DVD video signal (+) terminal 1
* DVD video signal (-) terminal 2
• If not the specified value, test the signal circuit for a short to ground.
8. Test for less than 5 ohms between the DVD display terminal 1 and the radio X3 harness connector terminal 7.
• If greater than specified range, test the DVD video signal (+) circuit for an open/high resistance.
9. Test for less than 5 ohms between the DVD display terminal 2 and the radio X3 harness connector terminal 15.
• If greater than specified range, test the DVD video signal (-) circuit for an open/high resistance.
10. If all circuits test normal, replace the DVD display.
11. Ignition ON, DVD playing, verify the DVD display operates normally.
• If the DVD display does not operate normally, replace the radio.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Video Display Replacement (U42/C3U) Video Display Replacement (U42/C3U)Video Display Replacement (U42) Video Display Replacement (U42)
* Control Module References Programming and Relearning for Radio replacement, setup, and programming