FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.
Home >> Buick >> 2013 >> LaCrosse AWD V6-3.6L >> Repair and Diagnosis >> Accessories and Optional Equipment >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Video Entertainment System Malfunction

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 provides 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 seatback displays. When the radio is turned ON, the seatback displays receive a voltage signal from the radio via the remote enable signal circuit indicating the system status. Discreet output circuits from the radio are used to transmit the DVD images to each of the displays. The radio utilizes discreet mode control circuits to each display to control the screen display mode via a pulse width modulated signal. A single brightness control circuit is used by the radio to control the display screen brightness for both displays via a pulse width modulated signal.

Reference Information

Schematic Reference

Video System Schematics Video System Schematics

Connector End View Reference

Component Connector End Views Fuel Pump and Level Sensor Assembly

Description and Operation

Video Entertainment System Description and Operation Video Entertainment System

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 Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON, radio ON, DVD playing.

2. Verify that the Rear Seat Entertainment System audio/video operates.

• If the Rear Seat Entertainment System is inoperative.
Refer to Circuit/System Testing.

• If the Rear Seat Entertainment System operates.

3. Verify that the remote control functions properly.

• If the remote control is inoperative.
Refer to Video Entertainment System Remote Control Malfunction Video Entertainment System Remote Control Malfunction.

• If the remote control operates.

4. Verify that each headphone functions properly.

• If one or more of the headphones are inoperative.
Refer to Video Entertainment System Wireless Headphone Malfunction Video Entertainment System Wireless Headphone Malfunction.

• If all headphones operate.

5. All OK.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate DVD display.

2. Test for less than 10 ohms between the ground circuit terminals listed below and ground.

* Ground terminal 8

* Ground terminal 14

• If 10 ohms or greater

1. Ignition OFF.

2. Test for less than 2 ohms in the ground circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, repair the open/high resistance in the ground connection.

• If less than 10 ohms

3. Verify a test lamp illuminates between the B+ circuit terminal 1 and ground.

• If the test lamp does not illuminate and the circuit fuse is good

1. Ignition OFF.

2. Test for less than 2 ohms in the B+ circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, refer to Power Mode Mismatch Power Mode Mismatch.

• If the test lamp does not illuminate and the circuit fuse is open

1. Ignition OFF.

2. Test for infinite resistance between the B+ circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance, replace the appropriate P22 seatback video display.

• If the test lamp illuminates

4. Verify a test lamp does NOT illuminate between the control circuit terminal 2 and ground.

• If the test lamp illuminates

1. Disconnect the X1 harness at the A11 radio.

2. Verify a test lamp does not illuminate between the control circuit and ground.

• If the test lamp illuminates, repair the short to voltage on the circuit.

• If the test lamp does not illuminate, replace the A11 radio.

• If the test lamp does not illuminate

5. Ignition ON, A11 radio ON.

6. Verify a test lamp illuminates between the control circuit terminal 2 and ground.

• If the test lamp does not illuminate

1. Ignition OFF. Disconnect the X1 harness at the A11 radio.

2. Test for less than 2 ohms in the control circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the A11 radio.

• If the test lamp illuminates

7. Ignition ON, radio ON, DVD playing.

8. Test for 190-210 HZ DC between the control circuit terminal 16 and ground.

• If not between 190-210 HZ DC.

1. Ignition OFF, disconnect the X2 harness connector at the A11 radio.

2. Ignition ON.

3. Test for less than 1 V between the control circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V

4. Ignition OFF.

5. Test for infinite resistance between the control circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance

6. Test for less than 2 ohms in the control circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the A11 radio.

• If between 190-210 HZ DC.

9. Test for 190-210 HZ DC between the control circuit terminal 15 and ground.

• If not between 190-210 HZ DC.

1. Ignition OFF, disconnect the X2 harness connector at the A11 radio.

2. Ignition ON.

3. Test for less than 1 V between the control circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V

4. Ignition OFF.

5. Test for infinite resistance between the control circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance

6. Test for less than 2 ohms in the control circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the A11 radio.

• If between 190-210 HZ DC.

10. Test for 1-3 V between the signal circuit terminals listed below and ground.

* terminal 9

* terminal 10

• If less than 1 V

1. Ignition OFF, disconnect the X2 harness connector at the A11 radio.

2. Test for infinite resistance between the signal circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance

3. Test for less than 2 ohms in the signal circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the A11 radio.

• If greater than 3 V

1. Ignition OFF, disconnect the X2 harness connector at the A11 radio. Ignition ON.

2. Test for less than 1 V between the signal circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V, replace the A11 radio.

• If between 1-3 V

11. Test normal or replace the appropriate P22 seatback video display.

Repair Instructions

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

* Video Display Replacement Service and Repair

* Control Module References Control Module References for radio replacement, setup, and programming

pro multis Credits:Operation CHARM About Operation CHARM