There may be an open circuit in the CAN main wire and/or DLC3 CAN branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 69 Ω or higher.

Symptom	Trouble Area
The resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 69 Ω or higher.	CAN main wire and connector No. 1 junction connector No. 2 junction connector No. 3 junction connector No. 6 junction connector* ECM Combination meter assembly DLC3 CAN branch wire or connector

*: w/o Network Gateway ECU

WIRING DIAGRAM

Can Communication System (For Lhd) - Open In Can Main Wire. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

HINT:

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

1.PRECAUTION

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work ().

NEXT

2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.

CAUTION:

For vehicles with an SRS system:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected ().

NEXT

3.CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - DLC3)

Can Communication System (For Lhd) - Open In Can Main Wire. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E22-6 (CANH) - E22-14 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Front view of DLC3

NOTICE:

When the measured value is 133 Ω or higher and a CAN communication system diagnostic trouble code is output, there may be a fault besides disconnection of the DLC3 branch wire. For that reason, troubleshooting should be performed again from "How to Proceed with Troubleshooting" () after repairing the trouble area.

REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL)

OK

4.CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - ECM)

Disconnect the E69 No. 2 junction connector.

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E69-1 (CANH) - E69-12 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 2 Junction Connector)

Go to step 6

OK

5.CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E69-4 (CANH) - E69-15 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 2 Junction Connector)

Go to step 11

REPLACE NO. 2 JUNCTION CONNECTOR

6.CONNECT CONNECTOR

Reconnect the E69 No. 2 junction connector.

NEXT

7.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)

Disconnect the E72 No. 1 junction connector.

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E72-2 (CANH) - E72-13 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 1 Junction Connector)

Go to step 9

OK

8.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E72-1 (CANH) - E72-12 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 1 Junction Connector)

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

REPLACE NO. 1 JUNCTION CONNECTOR

9.CONNECT CONNECTOR

Reconnect the E72 No. 1 junction connector.

NEXT

10.CHECK FOR OPEN IN CAN BUS MAIN WIRE (ECM - NO. 1 JUNCTION CONNECTOR)

Disconnect the A38 ECM connector.

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

Standard Resistance:
except 1VD-FTV
Tester Connection Switch Condition Specified Condition
A38-10 (CANH) - A38-11 (CANL) Ignition switch off 108 to 132 Ω
for 1VD-FTV
Tester Connection Switch Condition Specified Condition
A38-41 (CANH) - A38-49 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*A	except 1VD-FTV
*B	for 1VD-FTV
*a	Front view of wire harness connector (to ECM)

Result
Result	Proceed to
OK (for 1GR-FE)	A
OK (for 1UR-FE)	B
OK (for 3UR-FE)	C
OK (for 1VD-FTV)	D
NG	E

REPLACE ECM ()

REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (ECM - NO. 1 JUNCTION CONNECTOR)

REPLACE ECM ()

11.CONNECT CONNECTOR

Reconnect the E69 No. 2 junction connector.

NEXT

12.SYSTEM CHECK

Check the vehicle specifications.

Result
Result	Proceed to
w/ Network Gateway ECU	A
w/o Network Gateway ECU	B

Go to step 17

A

13.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

Disconnect the E75 No. 3 junction connector.

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E75-3 (CANH) - E75-14 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 3 Junction Connector)

Go to step 15

OK

14.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E75-1 (CANH) - E75-12 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 3 Junction Connector)

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

REPLACE NO. 3 JUNCTION CONNECTOR

15.CONNECT CONNECTOR

Reconnect the E75 No. 3 junction connector.

NEXT

16.CHECK FOR OPEN IN CAN BUS MAIN WIRE (COMBINATION METER - NO. 3 JUNCTION CONNECTOR)

Disconnect the E7 combination meter assembly connector.

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E7-25 (CANH) - E7-26 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Front view of wire harness connector (to Combination Meter Assembly)

Result
Result	Proceed to
OK (w/ Multi-information Display)	A
OK (w/o Multi-information Display)	B
NG	C

REPLACE COMBINATION METER ASSEMBLY ()

REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (COMBINATION METER ASSEMBLY - NO. 3 JUNCTION CONNECTOR)

REPLACE COMBINATION METER ASSEMBLY ()

17.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

Disconnect the F73 No. 6 junction connector.

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
F73-6 (CANH) - F73-17 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 6 Junction Connector)

Go to step 19

OK

18.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
F73-7 (CANH) - F73-18 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 6 Junction Connector)

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 6 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

REPLACE NO. 6 JUNCTION CONNECTOR

19.CONNECT CONNECTOR

Reconnect the F73 No. 6 junction connector.

NEXT

20.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

Disconnect the E75 No. 3 junction connector.

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E75-3 (CANH) - E75-14 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 3 Junction Connector)

Go to step 22

OK

21.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E75-1 (CANH) - E75-12 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Rear view of wire harness connector (to No. 3 Junction Connector)

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

REPLACE NO. 3 JUNCTION CONNECTOR

22.CONNECT CONNECTOR

Reconnect the E75 No. 3 junction connector.

NEXT

23.CHECK FOR OPEN IN CAN BUS MAIN WIRE (COMBINATION METER ASSEMBLY - NO. 3 JUNCTION CONNECTOR)

Disconnect the E7 combination meter assembly connector.

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

Standard Resistance:
Tester Connection Switch Condition Specified Condition
E7-25 (CANH) - E7-26 (CANL) Ignition switch off 108 to 132 Ω

Text in Illustration
*a	Front view of wire harness connector (to Combination Meter Assembly)

Result
Result	Proceed to
OK (w/ Multi-information Display)	A
OK (w/o Multi-information Display)	B
NG	C

REPLACE COMBINATION METER ASSEMBLY ()

REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (COMBINATION METER ASSEMBLY - NO. 3 JUNCTION CONNECTOR)

REPLACE COMBINATION METER ASSEMBLY ()

NETWORKING

Land Cruiser URJ200 URJ202 GRJ200 VDJ200

CAN COMMUNICATION SYSTEM for LHD

Tester Connection	Switch Condition	Specified Condition
E22-6 (CANH) - E22-14 (CANL)	Ignition switch off	108 to 132 Ω