PRE-RELEASE
Video Entertainment System Remote Control Malfunction
| Video Entertainment System Remote Control 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 infrared remote signal is used to transmit signals from the rear seat entertainment remote control via pulse width modulated (PWM) signals to the radio. When a key on the remote is pressed, the remote control sends an infrared message to the infrared transmitter located in the DVD display. The infrared transmitter will convert these infrared signals into a frequency and send the message to the radio via the remote infrared signal circuits (+) and (-).
| 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/video functions are working properly.
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| 2. |
If the Rear Seat Entertainment System is inoperative, refer to
Video Entertainment System Malfunction
.
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| 3. |
Verify that all remote control functions are working properly.
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| 4. |
If one function on the remote control is inoperative, replace the remote control.
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| 5. |
If all functions are inoperative on the remote control, test or replace the batteries.
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| 6. |
Verify that all remote control functions are working properly pointing at the left and right DVD display while holding the remote control 8-10 inches from each display.
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| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connectors at both left and right DVD display seat headrests.
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| 2. |
Ignition OFF, scan tool disconnected, open driver door, wait two minutes. Test for less than 1 Ω between the infrared remote signal (-) circuits terminal 13 and ground.
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| 3. |
If greater than the specified range, test the signal (-) circuit for an open/high resistance. If the circuits test normal, replace the A11 Radio.
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| 4. |
Ignition ON, DVD playing, test for 1-4 V between the infrared remote signal (+) circuit terminal 12 and ground.
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| 5. |
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 A11 Radio.
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| 6. |
If greater than specified range, test the signal (+) circuit for a short to voltage. If the circuit tests normal, replace the A11 Radio.
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| 7. |
If all circuits test normal, replace the remote control. If the remote is still inoperative, replace the DVD display seat headrest.
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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
for video display replacement
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