Audio Video. Dtc B15Ce Seatback Display Disconnected

The television display assembly and multi-display controller sub-assembly are connected by an AVC-LAN communication line.
The multi-media module receiver assembly is connected to the multi-display controller sub-assembly by a MOST communication line.
This DTC will be stored when an AVC-LAN communication error occurs between the multi-display controller sub-assembly and television display assembly.

DTC Code	DTC Detection Condition	Trouble Area
B15CE	Either condition is met: The television display assembly is not connected while the engine switch is on (IG) or (ACC). Communication between the master unit and television display assembly is not possible when the engine is started.	Television display assembly power source circuit AVC-LAN circuit between multi-display controller sub-assembly and television display assembly Multi-display controller sub-assembly Television display assembly LH Television display assembly RH

HINT:

Even if no fault is present, this DTC may be stored depending on the battery condition or engine start voltage.
The multi-media module receiver assembly is the master unit.

WIRING DIAGRAM

Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type).
Dtc
B15Ce Seatback Display Disconnected

INSPECTION PROCEDURE

1.CLEAR DTC

Clear the DTCs (Click here).

NEXT

2.CHECK FOR DTC

Check for DTCs and check if the same trouble occurs again (Click here).
OK:
No DTCs are output.

USE SIMULATION METHOD TO CHECK (Click here)

OK

3.CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

Check that optional components (including associated wiring) which generate radio waves are not installed.
Result
Result
Proceed to
Optional components (including associated wiring) are installed
A
Optional components (including associated wiring) are not installed
B

Result
Result	Proceed to
Optional components (including associated wiring) are installed	A
Optional components (including associated wiring) are not installed	B

Go to step 5

A

4.REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

Remove optional components (including associated wiring).
NOTICE:
Do not remove optional components or associated wiring without the permission of the customer.

NEXT

5.CLEAR DTC

Clear the DTCs (Click here).

NEXT

6.CHECK FOR DTC

Check for DTCs and check if the same trouble occurs again (Click here).
OK:
No DTCs are output.

Go to step 7

END

7.CHECK OPERATION

Check which television display assembly does not operate.
Result
Result
Proceed to
Television display assembly LH does not operate
A
Television display assembly RH does not operate
B

Result
Result	Proceed to
Television display assembly LH does not operate	A
Television display assembly RH does not operate	B

Go to step 12

A

8.CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY LH POWER SOURCE)

Disconnect the television display assembly LH connector.

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Switch Condition
Specified Condition
c43-6 (PWR2) - c43-9 (GND)
Engine switch on (IG)
11 to 14 V
c43-6 (PWR2) - c43-10 (GND2)
Engine switch on (IG)
11 to 14 V
Text in Illustration
*a
Front view of wire harness connector
(to Television Display Assembly LH)

Text in Illustration
*a	Front view of wire harness connector (to Television Display Assembly LH)

Go to step 11

OK

9.CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY LH)

Disconnect the L66 multi-display controller sub-assembly connector.

Disconnect the c43 television display assembly LH connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
L66-12 (TX2+) - c43-4 (TX2+)	Always	Below 1 Ω
L66-13 (TX2-) - c43-3 (TX2-)	Always	Below 1 Ω
L66-12 (TX2+) - Body ground	Always	10 kΩ or higher
L66-13 (TX2-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

10.CHECK TELEVISION DISPLAY ASSEMBLY LH

Replace the television display assembly LH (Click here).

Clear the DTCs (Click here).

Check for DTCs and check if the same trouble occurs again.
OK:
No DTCs are output.

REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY (Click here)

END (TELEVISION DISPLAY ASSEMBLY LH IS DEFECTIVE)

11.CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY LH)

Disconnect the L67 multi-display controller sub-assembly connector.

Disconnect the c43 television display assembly LH connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
L67-2 (PWR2) - c43-6 (PWR2)	Always	Below 1 Ω
L67-10 (GND2) - c43-9 (GND)	Always	Below 1 Ω
L67-11 (GND4) - c43-10 (GND2)	Always	Below 1 Ω
L67-2 (PWR2) - Body ground	Always	10 kΩ or higher
L67-10 (GND2) - Body ground	Always	10 kΩ or higher
L67-11 (GND4) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY (Click here)

12.CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY RH POWER SOURCE)

Disconnect the television display assembly RH connector.

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Switch Condition
Specified Condition
c38-6 (PWR1) - c38-9 (GND6)
Engine switch on (IG)
11 to 14 V
c38-6 (PWR1) - c38-10 (GND4)
Engine switch on (IG)
11 to 14 V

Text in Illustration
*a	Front view of wire harness connector (to Television Display Assembly RH)

Go to step 15

OK

13.CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY RH)

Disconnect the L66 multi-display controller sub-assembly connector.

Disconnect the c38 television display assembly RH connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
L66-10 (TX1+) - c38-3 (TX1+)	Always	Below 1 Ω
L66-11 (TX1-) - c38-4 (TX1-)	Always	Below 1 Ω
L66-10 (TX1+) - Body ground	Always	10 kΩ or higher
L66-11 (TX1-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

14.CHECK TELEVISION DISPLAY ASSEMBLY RH

Replace the television display assembly RH (Click here).

Clear the DTCs (Click here).

Check for DTCs and check if the same trouble occurs again.
OK:
No DTCs are output.

REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY (Click here)

END (TELEVISION DISPLAY ASSEMBLY RH IS DEFECTIVE)

15.CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY RH)

Disconnect the L67 multi-display controller sub-assembly connector.

Disconnect the c38 television display assembly RH connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
L67-3 (PWR1) - c38-6 (PWR1)	Always	Below 1 Ω
L67-12 (GND1) - c38-9 (GND6)	Always	Below 1 Ω
L67-13 (GND3) - c38-10 (GND4)	Always	Below 1 Ω
L67-3 (PWR1) - Body ground	Always	10 kΩ or higher
L67-12 (GND1) - Body ground	Always	10 kΩ or higher
L67-13 (GND3) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY (Click here)

Tester Connection	Switch Condition	Specified Condition
c43-6 (PWR2) - c43-9 (GND)	Engine switch on (IG)	11 to 14 V
c43-6 (PWR2) - c43-10 (GND2)	Engine switch on (IG)	11 to 14 V