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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 Instructionsprovides 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.

Vehicles equipped with the third row seating DVD display contain a video signal splitter to split the video signal to the second row and third row DVD displays.

Reference Information
Schematic Reference

Video System Schematics Video System Schematics
Connector End View Reference

Component Connector End Views Connector End Views By Name
Description and Operation

Video Entertainment System Description and Operation
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 Relearningfor scan tool information

Circuit/System Verification without DNU

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(s). Verify the rear video display(s) operates normally.

• If the rear video display does not operate normally, refer to circuit/system testing without DNU.

Circuit/System Verification with DNU

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(s). Verify the rear video display(s) operates normally.

• If the third row or second row video display does not operate normally, refer to circuit/system testing with DNU - One Display Not Functioning.
• If the third row and second row video displays do not operate normally, refer to circuit/system testing with DNU - Two Displays Not Functioning.

Circuit/System Testing

Without DNU
1. Ignition OFF, disconnect the harness connector at the 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 value, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.

4. Ignition ON, test for B+ between the battery positive voltage circuit terminal 7 and ground.

• If less than specified value, test the voltage supply circuit for a short to ground or an open/high resistance.

5. Ignition ON, DVD playing, test for 1-8 volts 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. Ignition ON, DVD playing, test for 40 mV -3.0 volts 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.
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 ground circuit for an open/high resistance.

9. If all circuits test normal, replace the DVD display.
10. Ignition ON, DVD playing, Verify the DVD display operates normally.

• If the DVD display does not operate normally, replace the radio.

With DNU - One Display Not Functioning
1. Ignition OFF, disconnect the harness connector at the appropriate DVD screen.
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 value, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the video signal splitter.

4. Test for B+ between the battery positive voltage circuit terminal 7 and ground.

• If less than specified value, test the voltage supply circuit for a short to ground or an open/high resistance.

5. Ignition ON, DVD playing, test for 1-8 volts 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 video signal splitter.
• 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 video signal splitter.

6. Ignition ON, DVD playing, test for 40 mV-3.0 volts 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 video signal splitter.
• 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 video signal splitter.

7. Ignition OFF, disconnect the appropriate harness connector at the video signal splitter.

* Front Display- X2
* Rear Display (DNU)- X3

8. Test for less than 5 ohms between the DVD display terminal 1 and the video signal splitter harness connector terminal 1.

• If greater than specified range, test the ground circuit for an open/high resistance.

9. If all circuits test normal, replace the DVD display.
10. Ignition ON, DVD playing, verify the DVD display operates normally.

• If the DVD display does not operate normally, replace the radio.

With DNU - Two Displays Not Functioning
1. Ignition OFF, disconnect the X1 harness connector at the video signal splitter.
2. Test for less than 5.0 ohms between the ground circuit terminal 2 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 11 and ground.

• If less than specified value, 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 6 and ground.

• If less than specified value, test the voltage supply circuit for a short to ground or an open/high resistance.

5. Ignition ON, DVD playing, test for 1-8 volts between the video bright control circuit terminal 8, 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. Ignition ON, DVD playing, test for 40 mV-3.0 volts between the video mode signal circuit terminal 16, 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.
8. Test for less than 5 ohms between the video signal splitter X1 terminal 1 and the radio X3 harness connector terminal 7.

• If greater than specified range, test the ground circuit for an open/high resistance.

9. If all circuits test normal, perform the circuit/system testing with DNU -- One Display Not Functioning for each display.

Repair Instructions

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

* Video Display Replacement
* Control Module References Programming and Relearning for radio replacement, setup, and programming

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