Can Communication System (For Rhd) Short In Can Bus Lines

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PRECAUTION

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CHECK FOR SHORT IN CAN BUS WIRES (DLC3 CAN BRANCH WIRE)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR SIDE)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - ECM)

CHECK FOR SHORT IN CAN BUS WIRES (CENTER AIRBAG SENSOR ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)

CHECK FOR SHORT IN CAN BUS WIRES (ECM)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR SIDE)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - MULTI-MEDIA MODULE RECEIVER ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - HEADLIGHT SWIVEL ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)

CHECK FOR SHORT IN CAN BUS WIRES (MULTI-MEDIA MODULE RECEIVER ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (HEADLIGHT SWIVEL ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ASSEMBLY)

CAN COMMUNICATION SYSTEM (for RHD) - Short in CAN Bus Lines


DESCRIPTION

There may be a short circuit between the CAN bus lines when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 54 Ω.

Symptom
Trouble Area
Resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 54 Ω.
  1. Short between CAN bus lines
  2. ECM
  3. Center airbag sensor assembly*1
  4. Headlight swivel ECU assembly*2
  5. Multi-media module receiver assembly*3
  6. Air conditioning amplifier assembly
  7. Network gateway ECU
  8. Main body ECU (cowl side junction block LH)
  9. Combination meter assembly
  10. No. 1 junction connector
  11. No. 2 junction connector
  12. No. 3 junction connector
  1. *1: w/ Airbag System
  2. *2: w/ Dynamic Headlight Auto Leveling
  3. *3: w/ Navigation System

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines


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 (Click here).

NEXT


2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  1. 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 (Click here).

NEXT


3.CHECK FOR SHORT IN CAN BUS WIRES (DLC3 CAN BRANCH WIRE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E75 No. 3 junction connector.

  1. 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
    		1 MΩ or higher
    Text in Illustration
    *a
    		Front view of DLC3


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


4.CONNECT CONNECTOR

  1. Reconnect the E75 No. 3 junction connector.


NEXT


5.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR SIDE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E72 No. 1 junction connector.

  1. 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


NG
Go to step 12
OK


6.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)
NOTICE:
For vehicles without an airbag system, go to "Check for Short in CAN Bus Wires (No. 1 Junction Connector - Main Body ECU)".


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E72-4 (CANH) - E72-15 (CANL)
    		Ignition switch off
    		200 Ω or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 Junction Connector)


NG
Go to step 9
OK


7.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E72-3 (CANH) - E72-14 (CANL)
    		Ignition switch off
    		200 Ω or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 Junction Connector)


NG
Go to step 10
OK


8.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - ECM)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. 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)


NG
Go to step 11
OK

REPLACE NO. 1 JUNCTION CONNECTOR

9.CHECK FOR SHORT IN CAN BUS WIRES (CENTER AIRBAG SENSOR ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E47 center airbag sensor assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E72-4 (CANH) - E72-15 (CANL)
    		Ignition switch off
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 Junction Connector)


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CENTER AIRBAG SENSOR ASSEMBLY (CANH, CANL)
OK

REPLACE CENTER AIRBAG SENSOR ASSEMBLY (Click here)

10.CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E3 main body ECU (cowl side junction block LH) connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E72-3 (CANH) - E72-14 (CANL)
    		Ignition switch off
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 Junction Connector)


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO MAIN BODY ECU (CANH, CANL)
OK

REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

11.CHECK FOR SHORT IN CAN BUS WIRES (ECM)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the A52 ECM connector.

  1. 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
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 Junction Connector)
    Result
    Result
    		Proceed to
    OK (for 1GR-FE)
    		A
    OK (for 1UR-FE)
    		B
    OK (for 1VD-FTV)
    		C
    NG
    		D


B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)

D
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (CANH, CANL)
A

REPLACE ECM (Click here)

12.CONNECT CONNECTOR

  1. Reconnect the E72 No. 1 junction connector.


NEXT


13.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E69 No. 2 junction connector.

  1. 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)


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


14.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR SIDE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. 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


NG
Go to step 23
OK


15.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - MULTI-MEDIA MODULE RECEIVER ASSEMBLY)
NOTICE:
For vehicles without an navigation system, go to "Check for Short in CAN Bus Wires (No. 2 Junction Connector - Air Conditioning Amplifier Assembly)".


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-2 (CANH) - E69-13 (CANL)
    		Ignition switch off
    		200 Ω or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
Go to step 19
OK


16.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-5 (CANH) - E69-16 (CANL)
    		Ignition switch off
    		200 Ω or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
Go to step 20
OK


17.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - HEADLIGHT SWIVEL ECU ASSEMBLY)
NOTICE:
For vehicles without an dynamic headlight auto leveling, go to "Check for Short in CAN Bus Wires (No. 2 Junction Connector - Network Gateway ECU)".


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-7 (CANH) - E69-18 (CANL)
    		Ignition switch off
    		200 Ω or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
Go to step 21
OK


18.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-3 (CANH) - E69-14 (CANL)
    		Ignition switch off
    		200 Ω or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
Go to step 22
OK

REPLACE NO. 2 JUNCTION CONNECTOR

19.CHECK FOR SHORT IN CAN BUS WIRES (MULTI-MEDIA MODULE RECEIVER ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the F77 multi-media module receiver assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-2 (CANH) - E69-13 (CANL)
    		Ignition switch off
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO MULTI-MEDIA MODULE RECEIVER ASSEMBLY (CANH, CANL)
OK

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)

20.CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E35*1 or E81*2 air conditioning amplifier connector.

    1. *1: w/ Rear Air Conditioning System
    2. *2: w/o Rear Air Conditioning System

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-5 (CANH) - E69-16 (CANL)
    		Ignition switch off
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO AIR CONDITIONING AMPLIFIER ASSEMBLY (CANH, CANL)
OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (Click here)

21.CHECK FOR SHORT IN CAN BUS WIRES (HEADLIGHT SWIVEL ECU ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E101 headlight swivel ECU assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-7 (CANH) - E69-18 (CANL)
    		Ignition switch off
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO HEADLIGHT SWIVEL ECU ASSEMBLY (MPX1, MPX2)
OK

REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (Click here)

22.CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E31 network gateway ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E69-3 (CANH) - E69-14 (CANL)
    		Ignition switch off
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 2 Junction Connector)


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO NETWORK GATEWAY ECU (CANH, CANL)
OK

REPLACE NETWORK GATEWAY ECU (Click here)

23.CONNECT CONNECTOR

  1. Reconnect the E69 No. 2 junction connector.


NEXT


24.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E75 No. 3 junction connector.

  1. 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)


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


25.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. 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)


NG
Go to step 26
OK

REPLACE NO. 3 JUNCTION CONNECTOR

26.CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System.Can Communication System (For Rhd) Short In Can Bus Lines

  1. Disconnect the E7 combination meter assembly connector.

  1. 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
    		1 MΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 3 Junction Connector)
    Result
    Result
    		Proceed to
    OK (w/ Multi-information Display)
    		A
    OK (w/o Multi-information Display)
    		B
    NG
    		C


B
REPLACE COMBINATION METER ASSEMBLY (Click here)

C
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (CANH, CANL)
A

REPLACE COMBINATION METER ASSEMBLY (Click here)