PRE-RELEASE
Video Entertainment System Malfunction
| Video Entertainment System Malfunction |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
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B+
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4, 8
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4, 8
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-
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-
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Ignition Circuit Terminal 2
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B1287, 2
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B1287, 2
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B1287, 2
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-
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Infrared Remote Signal (+) Terminal 12
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1
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1
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1
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-
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Infrared Remote Signal (-) Terminal 13
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1
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1
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1
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-
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Video Mode Signal
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7
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7
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7
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-
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Left DVD Audio Control (+) Terminal 6
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4
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4
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4
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-
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Right DVD Audio Control (+) Terminal 7
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5
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5
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5
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-
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DVD Audio Control (-) Terminal 5
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7
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7
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7
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-
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DVD Video Control (+) Terminal 9
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9
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9
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7
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-
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DVD Video Control (-) Terminal 10
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7
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9
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10
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-
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Video Bright Control
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8
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8
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8
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-
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Ground Terminal 8
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-
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3, 8
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-
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-
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Ground Terminal 14
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-
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3, 8
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-
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-
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1. Remote Control Inoperative
2. Video Entertainment System Inoperative 3. DVD display seatback Inoperative - headphones and remote inoperative 4. No or distorted left audio when listening to DVD 5. No or distorted right audio when listening to DVD 6. No or distorted audio on both channels when listening to DVD 7. Video Entertainment System Inoperative 8. Video Brightness cannot be adjusted. 9. Backlight only - No image shown 10. Serious damage to radio can occur |
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| Circuit/System Description |
The rear seat entertainment system utilizes the vehicle radio to play DVD movies and transmit video signals to the seatback displays. When the radio is turned ON, the DVD seatback displays receive a voltage signal from the radio via the antenna enable signal circuit indicating the system status. The video high and low control circuits are used to transmit the DVD images to the seatback displays.
| Reference Information |
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Video Entertainment System Description and Operation
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
| 1. |
Ignition ON, Radio ON, DVD playing, verify that the rear seat entertainment system audio and video functions are working properly.
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| 2. |
If the rear seat entertainment system is inoperative refer to Circuit/System Testing.
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| 3. |
Verify that all remote control functions are working properly.
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| 4. |
If one or more functions on the remote control are inoperative, refer to
Video Entertainment System Remote Control Malfunction
.
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| 5. |
Verify that each headphone is working properly.
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| 6. |
If one or more of the headphones are inoperative, refer to
Video Entertainment System Wireless Headphone Malfunction
.
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| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the appropriate DVD display.
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| 2. |
Ignition OFF for two minutes, test for less than 5 Ω between the ground circuit terminals listed below and ground.
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Ground Terminal 8
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Ground Terminal 14
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| 3. |
If greater than the specified range, test the ground circuit for an open/high resistance.
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| 4. |
Verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
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| 5. |
If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
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| 6. |
Ignition ON, connect a test lamp between the control circuit terminal 2 and the B + circuit terminal 1.
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| 7. |
Command the dual display enable ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
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| 8. |
If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the radio.
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| 9. |
If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the radio.
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| 10. |
DVD playing, test for 1-6 V between the video bright control circuit terminal 16, and ground.
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| 11. |
If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the radio.
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| 12. |
If less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
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| 13. |
DVD playing, command the video mode to normal, test for 1-2 V between the video mode signal circuit terminal 15, and ground.
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| 14. |
If greater than specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.
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| 15. |
If less than specified range, test the signal circuit for a short to ground, or an open/high resistance. If the circuit tests normal, replace the radio.
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| 16. |
DVD playing, test for 1-3 V between the control circuit terminals listed below and ground.
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Video Signal (+) terminal 9
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Video Signal (-) terminal 10
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| 17. |
If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the radio.
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| 18. |
If less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
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| 19. |
If all circuits test normal, replace the DVD display.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Control Module References
for radio replacement, setup, and programming
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| • |
Video Display Replacement
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