Pinpoint Test AC: One Or Both DVD Players Are Completely Inoperative

Information and Entertainment System

Pinpoint Test AC: One Or Both DVD Players Are Completely Inoperative

Refer to Wiring Diagrams Set 130, Audio System/Navigation for schematic and connector information. Electrical Diagrams

Normal Operation

Each DVD player displays video from a DVD inserted into that screen. In addition, the source can be changed so that both DVD players display video from the same DVD player. Each DVD player sends video signals to the Rear Entertainment Module (RETM) through a pair of circuits. Based on the source selected, the RETM (Rear Entertainment Module) can send the video data to the other screen.

If there is a fault in the video circuits or in the RETM (Rear Entertainment Module), the video can still operate correctly on the DVD player that is playing the current DVD, but the other screen will be blank when the source is changed to the other DVD player.

- DTC B119D:04 (Single-Disc DVD Player: System Internal Failure)- sets when the RETM (Rear Entertainment Module) detects a fault in the LH DVD player for greater than 15 seconds during normal operation. This DTC can also be set by a connector that is not seated correctly. Make sure all connectors are seated correctly before continuing with the diagnostics.

- DTC B1350:04 (Single-Disc DVD #2: System Internal Failure)- sets when the RETM (Rear Entertainment Module) detects a fault in the RH DVD player for greater than 15 seconds during normal operation. This DTC can also be set by a connector that is not seated correctly. Make sure all connectors are seated correctly before continuing with the diagnostics.

This pinpoint test is intended to diagnose the following:

- Incorrect customer setting

- Damaged DVD

- Wiring, terminals or connectors

- DVD player

- RETM (Rear Entertainment Module)

PINPOINT TEST AC : ONE OR BOTH DVD PLAYERS ARE COMPLETELY INOPERATIVE

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

NOTE: If the DVD players are removed during this test, it is important to install the DVD players in the original location before completing the repair. The DVD players only function completely correct when they are installed in their original location.

AC1 CHECK THE OPERATION OF EACH DVD PLAYER

- Operate the audio system in family entertainment system mode.

- Insert a known good DVD into each DVD player.

- Set the LH DVD player source to "Monitor A". For additional information, refer to the Owner's Literature.

- Set the RH DVD player source to "Monitor B". For additional information, refer to the Owner's Literature.

- Observe the display on both DVD players.

Do both DVD players show video correctly?

Yes
GO to AC2.

No
GO to AC5.

AC2 CHECK THE CUSTOMER SETTING

- Continue to operate the audio system in family entertainment system mode.

- Set both DVD player sources to "Monitor A". For additional information, refer to the Owner's Literature.

- Observe the display on both DVD players.

- Set both DVD player sources to "Monitor B". For additional information, refer to the Owner's Literature.

- Observe the display on both DVD players.

Do the DVD players both show the video from the LH DVD player when set to "Monitor A", and do both show the video from the RH DVD player when set to "Monitor B"?

Yes
The system is operating correctly at this time. The concern may have been caused by an inoperative DVD or the customer setting. INSTRUCT the customer in the correct operation of the family entertainment system.

No
GO to AC3.

AC3 CHECK THE VIDEO SIGNAL CIRCUITS FOR A SHORT TO VOLTAGE

- Ignition OFF.

- Disconnect: RETM (Rear Entertainment Module) C2949A.

- Disconnect: LH DVD Player C3370A and C3370B.

- Disconnect: RH DVD Player C3371A and C3371B.

- Ignition ON.

- Measure the voltage between the RETM (Rear Entertainment Module), harness side and ground as follows:

Positive Meter Lead Negative Meter Lead C2949A-8 VMR05 (WH) C2949A-6 VMR09 (WH) C2949A-9 VMR19 (WH) C2949A-7 VMR23 (WH)

Is any voltage present?

Yes
REPAIR the circuit in question. CLEAR any DTCs present. TEST the system for normal operation.

No
GO to AC4.

AC4 CHECK THE VIDEO SIGNAL CIRCUITS FOR AN OPEN OR SHORT TO GROUND

- Ignition OFF.

- Measure the resistance between the RETM (Rear Entertainment Module), harness side and the DVD player, harness side; and between the RETM (Rear Entertainment Module), harness side and ground as follows:

Positive Meter Lead Negative Meter Lead Circuit C2949A-8 C3370A-2, then ground VMR05 (WH) C2949A-6 C3370B-2, then ground VMR09 (WH) C2949A-9 C3371A-2, then ground VMR19 (WH) C2949A-7 C3371B-2, then ground VMR23 (WH)

Is the resistance less than 5 ohms between the RETM (Rear Entertainment Module) and the DVD player, and greater than 10,000 ohms between the RETM (Rear Entertainment Module) and ground?

Yes
GO to AC9.

No
REPAIR the circuit in question. CLEAR any DTCs present. TEST the system for normal operation.

AC5 ISOLATE THE DVD PLAYER

- Ignition OFF.

- Disconnect: LH DVD Player C3370A and C3370B.

- Disconnect: RH DVD Player C3371A and C3371B.

- Install the LH DVD player in the RH headrest.
- Connect the electrical connectors.

- Install the RH DVD player in the LH headrest.
- Connect the electrical connectors.

- Ignition ON.

- Operate the audio system in family entertainment system mode.

- Observe the display on both DVD players.

Is the suspect DVD player still inoperative?

Yes
INSTALL the known good DVD player in its original position. INSTALL a new DVD player for the inoperative screen. REFER to Digital Versatile Disc (DVD) Player . TEST the system for normal operation.

No
GO to AC6.

AC6 CHECK THE DVD PLAYER POWER SUPPLY CIRCUIT

- Ignition OFF.

- Disconnect: LH DVD Player C3370A.

- Disconnect: RH DVD Player C3371A.

- Ignition ON.

- Measure the voltage between the LH DVD player C3370A-6, circuit CMR13 (RD), harness side and ground; and between the RH DVD player C3371A-6, circuit CMR13 (RD), harness side and ground.

Are the voltages greater than 10 volts?

Yes
GO to AC8.

No
If only one circuit does not have correct voltage, REPAIR the open in circuit CMR13 (RD). CLEAR any DTCs present. TEST the system for normal operation.

If both circuits do not have correct voltage, GO to AC7.

AC7 CHECK THE DVD PLAYER POWER SUPPLY CIRCUIT FOR AN OPEN OR SHORT TO GROUND

- Ignition OFF.

- Disconnect: RETM (Rear Entertainment Module) C2949A.

- Measure the resistance between the RETM (Rear Entertainment Module), harness side and the DVD player, harness side; and between the RETM (Rear Entertainment Module), harness side and ground as follows:

Inoperative Side Positive Meter Lead Negative Meter Lead Circuit LH C2949A-12 C3370A-6, then ground CMR13 (WH/GN or RD) RH C2949A-12 C3371A-6, then ground CMR13 (WH/GN or RD)

Are the resistances less than 5 ohms?

Yes
INSTALL a new DVD player for the inoperative screen. REFER to Digital Versatile Disc (DVD) Player . CLEAR any DTCs present. TEST the system for normal operation.

No
REPAIR the circuit in question. CLEAR any DTCs present. TEST the system for normal operation.

AC9 CHECK FOR CORRECT RETM (Rear Entertainment Module) OPERATION

- Connect: All Disconnected Connectors.

- Disconnect all the RETM (Rear Entertainment Module) connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins

- Connect all the RETM (Rear Entertainment Module) connectors and make sure they seat correctly.

Is the concern still present?

Yes
INSTALL a new RETM (Rear Entertainment Module). REFER to Rear Entertainment Module (RETM) . TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.