Pinpoint Test BE: The DVD Player Buttons Are Inoperative
Information and Entertainment System
Pinpoint Test BE: The DVD Player Buttons Are Inoperative
Refer to Wiring Diagrams Set 130, Audio System/Navigation for schematic and connector information. Electrical Diagrams
Normal Operation
Each DVD player has its own buttons. When a button is pressed, a signal is sent to the Rear Entertainment Module (RETM) through a dedicated pair of circuits. The RETM (Rear Entertainment Module) then takes the appropriate action.
- DTC U2004:63 (Auxiliary Switch Pack: Circuit/Component Protection Time-Out)- sets when the RETM (Rear Entertainment Module) detects a button on the LH DVD player as active for greater than 20 seconds during the self-test, or for greater than 2 minutes during normal operation. When this occurs, the RETM (Rear Entertainment Module) ignores input from the stuck button.
- DTC U2013:63 (Switch Pack: Circuit/Component Protection Time-Out)- sets when the RETM (Rear Entertainment Module) detects a button on the RH DVD player as active for greater than 20 seconds during the self-test, or for greater than 2 minutes during normal operation. When this occurs, the RETM (Rear Entertainment Module) ignores input from the stuck button.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- DVD player
- RETM (Rear Entertainment Module)
PINPOINT TEST BE : THE DVD PLAYER BUTTONS ARE INOPERATIVE
NOTICE: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
BE1 CHECK THE RETM (Rear Entertainment Module) DTCs
- Ignition ON.
- Clear the RETM (Rear Entertainment Module) DTCs.
- Exit the RETM (Rear Entertainment Module) self-test.
- Ignition OFF.
- Ignition ON.
- Operate the audio system in family entertainment system mode and wait at least 2 minutes.
- Repeat the RETM (Rear Entertainment Module) self-test, making sure no DVD player buttons are pressed during the self-test.
Is DTC U2004:63 or DTC U2013:63 present?
Yes
GO to BE2.
No
GO to BE3.
BE2 MONITOR THE DVD PLAYER BUTTON PIDs
- Enter the following diagnostic mode on the scan tool: RETM (Rear Entertainment Module) DataLogger.
- For DTC U2004:63, monitor the LH DVD player button PIDs as follows:
PID Button Description BTN_ARROWDN_A Arrow down BTN_ARROWLT_A Arrow left BTN_ARROWRT_A Arrow right BTN_ARROWUP_A Arrow up BTN_DPLAY_A Dual-play BTN_EJECT_A Eject BTN_MENU_A Menu BTN_PLYPAUS_A Play/Pause BTN_PWR_A Power BTN_SOURCE_A Source BTN_STOP_A Stop
- For DTC U2013:63, monitor the RH DVD player button PIDs as follows:
PID Button Description BTN_ARROWDN_B Arrow down BTN_ARROWLT_B Arrow left BTN_ARROWRT_B Arrow right BTN_ARROWUP_B Arrow up BTN_DPLAY_B Dual-play BTN_EJECT_B Eject BTN_MENU_B Menu BTN_PLYPAUS_B Play/Pause BTN_PWR_B Power BTN_SOURCE_B Source BTN_STOP_B Stop
Do all of the PIDs indicate "Not Pressed" or "Inactive" with no buttons pressed?
Yes
GO to BE6.
No
REPAIR the stuck button, if possible. If the button cannot be repaired, INSTALL a new DVD player for the screen with the stuck button. REFER to Digital Versatile Disc (DVD) Player . CLEAR the DTCs. TEST the system for normal operation.
BE3 CHECK THE BUTTON TRANSMIT AND RECEIVE CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: RETM (Rear Entertainment Module) C2949A.
- Disconnect: LH DVD Player C3370B or RH DVD Player C3371B.
- Ignition ON.
- Measure the voltage between the RETM (Rear Entertainment Module), harness side and ground as follows:
Suspect DVD Player Positive Meter Lead Negative Meter Lead LH C2949A-23 VMR10 (GY/OG) Ground C2949A-24 VMR11 (VT/OG) Ground RH C2949A-10 VMR24 (GY/VT) Ground C2949A-11 VMR25 (VT/GY) Ground
Is any voltage present?
Yes
REPAIR the circuit in question. TEST the system for normal operation.
No
GO to BE4.
BE4 CHECK THE BUTTON TRANSMIT AND RECEIVE 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:
Suspect DVD Player Positive Meter Lead Negative Meter Lead Circuit LH C2949A-23 C3370B-5, then ground VMR10 (GY/OG or BU) C2949A-24 C3370B-6, then ground VMR11 (VT/OG or GN) RH C2949A-10 C3371B-5, then ground VMR24 (GY/VT or BU) C2949A-11 C3371B-6, then ground VMR25 (VT/GY or GN)
Is the resistance less than 5 ohms between the RETM (Rear Entertainment Module) and the suspect DVD player, and greater than 10,000 ohms between the RETM (Rear Entertainment Module) and ground?
Yes
GO to BE5.
No
REPAIR the circuit in question. TEST the system for normal operation.
BE5 ISOLATE THE DVD PLAYER
- Connect: RETM (Rear Entertainment Module) C2949A.
- NOTE: For this step, leave the suspect DVD player disconnected and connect the opposite DVD player to the connections of the suspect DVD player.
Connect the known good DVD player in the suspect screen position.
- Operate the audio system in family entertainment mode and carry out several button presses on the known good DVD player.
Does the system operate correctly from the known good DVD player?
Yes
INSTALL the known good DVD player in its correct location. INSTALL a new DVD player for the suspect screen. REFER to Digital Versatile Disc (DVD) Player . TEST the system for normal operation.
No
INSTALL both DVD players in their original locations. GO to BE6.
BE6 CHECK FOR CORRECT RETM (Rear Entertainment Module) OPERATION
- 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.