Can Communication System (For Rhd With Central Gateway Ecu) Open In Bus 2 Main Bus Line

Power Source Network. Land Cruiser. Urj200, 202 Grj200 Vdj200
Networking. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

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

CONNECT CONNECTOR

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

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (CENTRAL GATEWAY ECU - NO. 1 CAN JUNCTION CONNECTOR)

CONNECT CONNECTOR

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

CONNECT CONNECTOR

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

CAN COMMUNICATION SYSTEM (for RHD with Central Gateway ECU) - Open in Bus 2 Main Bus Line


DESCRIPTION

There may be an open circuit in one of the bus 2 main lines and/or a central gateway ECU CAN branch wire when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU is 70 Ω or higher

Detection Item
Trouble Area
Resistance between terminals 18 (CA4H) and 17 (CA4L) of central gateway ECU is 70 Ω or higher.
  1. Bus 2 CAN main wire or connector
  2. Bus 2 CAN branch wire or connector
  3. ECM
  4. Combination meter assembly
  5. Central gateway ECU
  6. No. 1 CAN junction connector
  7. No. 2 CAN junction connector
This malfunction is not related to the lines of a bus 2 branch except the central gateway ECU CAN branch wires or to ECUs or sensors connected a bus 2 branch.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd With Central Gateway Ecu) Open In Bus 2 Main Bus Line


INSPECTION PROCEDURE

NOTICE:
  1. Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output (Click here).
  2. Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
  3. 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 (Click here).
  4. After the repair, perform CAN Bus Check and check that all the ECUs and sensors connected to the CAN communication system are displayed (Click here).
HINT:
  1. Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
  2. Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
1.CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 1 CAN JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd With Central Gateway Ecu) Open In Bus 2 Main Bus Line

  1. Disconnect the cable from the negative (-) battery terminal.

  1. Disconnect the ECM connector.

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

    Standard Resistance:
    for 1UR-FE:
    Tester Connection
    		Condition
    		Specified Condition
    A52-10 (CANH) - A52-11 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		108 to 132 Ω
    for 1VD-FTV:
    Tester Connection
    		Condition
    		Specified Condition
    A52-41 (CANH) - A52-49 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		108 to 132 Ω
    Text in Illustration
    *A
    		for 1UR-FE
    *B
    		for 1VD-FTV
    *a
    		Front view of wire harness connector
    (to ECM)
    Result
    Result
    		Proceed to
    OK (for 1UR-FE)
    		A
    OK (for 1VD-FTV)
    		B
    NG
    		C


B
REPLACE ECM (Click here)

C
Go to step 2
A

REPLACE ECM (Click here)

2.CONNECT CONNECTOR

  1. Reconnect the A52 ECM connector.


NEXT


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd With Central Gateway Ecu) Open In Bus 2 Main Bus Line

  1. Disconnect the combination meter assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E119-39 (CANH) - E119-40 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to Combination Meter Assembly)


NG
Go to step 4
OK

REPLACE COMBINATION METER ASSEMBLY (Click here)

4.CONNECT CONNECTOR

  1. Reconnect the E119 combination meter assembly connector.


NEXT


5.CHECK FOR OPEN IN CAN BUS WIRE (CENTRAL GATEWAY ECU - NO. 1 CAN JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd With Central Gateway Ecu) Open In Bus 2 Main Bus Line

  1. Disconnect the central gateway ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E145-18 (CA4H) - E145-17 (CA4L)
    		Cable disconnected from negative (-) battery terminal
    		54 to 69 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Central Gateway ECU)


NG
Go to step 6
OK

REPLACE CENTRAL GATEWAY ECU (Click here)

6.CONNECT CONNECTOR

  1. Reconnect the E145 central gateway ECU connector.


NEXT


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


  1. Disconnect the No. 1 CAN junction connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd With Central Gateway Ecu) Open In Bus 2 Main Bus Line


    Text in Illustration
    *a
    		Front view of wire harness connector
    (to No. 1 CAN Junction Connector)
    		*b
    		to No. 2 CAN Junction Connector
    *c
    		to ECM
    		*d
    		to Central Gateway ECU

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    		Connect to
    E133-1 (CANH) - E133-11 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		108 to 132 Ω
    		No. 2 CAN junction connector
    E133-7 (CANH) - E133-17 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		108 to 132 Ω
    		ECM
    E133-8 (CANH) - E133-18 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		200 Ω or higher
    		Central gateway ECU
    Result
    Result
    		Proceed to
    OK
    		A
    NG (ECM CAN main wire)
    		B
    NG (Central gateway ECU CAN branch wire)
    		C
    NG (No. 2 CAN junction connector CAN main wire)
    		D


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

C
REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU)

D
Go to step 8
A

REPLACE NO. 1 CAN JUNCTION CONNECTOR

8.CONNECT CONNECTOR

  1. Reconnect the E133 No. 1 CAN junction connector.


NEXT


9.CHECK FOR OPEN IN CAN BUS WIRE (NO. 2 CAN JUNCTION CONNECTOR)


  1. Disconnect the No. 2 CAN junction connector.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd With Central Gateway Ecu) Open In Bus 2 Main Bus Line


    Text in Illustration
    *a
    		Front view of wire harness connector
    (to No. 2 CAN Junction Connector)
    		*b
    		to No. 1 CAN Junction Connector
    *c
    		to Combination Meter Assembly
    		-
    		-

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    		Connect to
    E135-1 (CANH) - E135-11 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		108 to 132 Ω
    		No. 1 CAN junction connector
    E135-7 (CANH) - E135-17 (CANL)
    		Cable disconnected from negative (-) battery terminal
    		108 to 132 Ω
    		Combination meter assembly
    Result
    Result
    		Proceed to
    OK
    		A
    NG (Combination meter assembly CAN main wire)
    		B
    NG (No. 1 CAN junction connector CAN main wire)
    		C


B
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 CAN JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

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

REPLACE NO. 2 CAN JUNCTION CONNECTOR