Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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 CAN BUS WIRE (CAN MAIN WIRE FOR DISCONNECTION, CHECK BUS LINE FOR SHORT CIRCUIT)

CHECK FOR OPEN IN MAIN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NETWORK GATEWAY ECU)

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

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

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

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)

CONNECT CONNECTOR

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

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NETWORK GATEWAY ECU - NO. 8 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR SIDE)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU)

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

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR SIDE)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - PARKING ASSIST ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

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

CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - YAW RATE SENSOR ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - DISTANCE CONTROL ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - 4WD CONTROL ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - STEERING CONTROL ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - SKID CONTROL ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU)

CONNECT CONNECTOR

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

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

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (SUSPENSION CONTROL ECU)

CONNECT CONNECTOR

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

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (YAW RATE SENSOR ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (DISTANCE CONTROL ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (4WD CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (STEERING CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU)

CONNECT CONNECTOR

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

CHECK HARNESS AND CONNECTOR (NETWORK GATEWAY ECU - BATTERY AND BODY GROUND)

DTC U1002 (CAN No. 2 BUS) Lost Communication with Gateway Module (Network Gateway ECU)


DESCRIPTION

  1. The network gateway ECU stores this DTC when no signals can be received from the ECUs that have been memorized as those connected to the CAN movement control bus.
  2. When the network gateway ECU receives a response signal from the ECUs connected to the CAN movement control bus, the network gateway ECU recognizes and memorizes that the ECU is connected to the CAN movement control bus. Based on this memorized data, the network gateway ECU monitors for malfunctions in the ECUs connected to the CAN movement control bus when communicating with those ECUs. If the network gateway ECU cannot receive response signals from the ECUs that have been memorized as those connected to the CAN movement control bus, the network gateway ECU determines that a malfunction exists.
  3. If 2 or more DTCs are output during the DTC check, one side of the CAN branch wire may be open (one side of the CANH [CAN branch wire]/CANL [CAN branch wire] of the ECU and/or sensor is open).

DTC Code
DTC Detection Condition
Trouble Area
U1002 (CAN No. 2 BUS)
Lost communication with the gateway module (network gateway ECU).
  1. Movement control bus circuit
  2. 4WD control ECU CAN branch wire or connector
  3. Power steering ECU assembly CAN branch wire or connector*1
  4. Yaw rate sensor assembly CAN branch wire or connector*2
  5. Distance control ECU assembly CAN branch wire or connector*3
  6. Seat belt control ECU CAN branch wire or connector*4
  7. Parking assist ECU CAN branch wire or connector*5
  8. Clearance warning ECU assembly CAN branch wire or connector*6
  9. Master cylinder solenoid (skid control ECU) CAN branch wire or connector
  10. Steering angle sensor CAN branch wire or connector*2
  11. Network gateway ECU CAN main wire or connector
  12. Steering control ECU CAN branch wire or connector*7
  13. Suspension control ECU CAN branch wire or connector*8
  14. 4WD control ECU
  15. Power steering ECU assembly*1
  16. Yaw rate sensor assembly*2
  17. Distance control ECU assembly*3
  18. Seat belt control ECU*4
  19. Parking assist ECU*5
  20. Clearance warning ECU assembly*6
  21. Master cylinder solenoid (skid control ECU)
  22. Steering angle sensor*2
  23. Steering control ECU*7
  24. Suspension control ECU*8
  25. Network gateway ECU
  26. No. 4 junction connector
  27. No. 5 junction connector
  28. No. 6 junction connector
  29. No. 7 junction connector
  30. No. 1 CAN junction connector
  1. *1: for 1VD-FTV with DPF
  2. *2: w/ Vehicle Stability Control System
  3. *3: w/ Dynamic Radar Cruise Control System
  4. *4: w/ Pre-crash Safety System
  5. *5: w/ Side Monitor System
  6. *6: w/ TOYOTA Parking Assist-sensor System and w/o Side Monitor System
  7. *7: w/ Variable Gear Ratio Steering System
  8. *8: w/ Active Height Control Suspension System

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)


Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)


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 CAN BUS WIRE (CAN MAIN WIRE FOR DISCONNECTION, CHECK BUS LINE FOR SHORT CIRCUIT)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    		Resistance Malfunction
    E31-13 (CA2H) - E31-12 (CA2L)
    		Ignition switch off
    		54 to 69 Ω
    		Below 53 Ω: Short in line
    E31-13 (CA2H) - E31-12 (CA2L)
    		Ignition switch off
    		54 to 69 Ω
    		70 Ω or higher: Open in CAN main bus line
    E31-13 (CA2H) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    		Below 6 kΩ: +B short
    E31-12 (CA2L) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    		Below 6 kΩ: +B short
    E31-13 (CA2H) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    		Below 200 Ω: Ground short
    E31-12 (CA2L) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    		Below 200 Ω: Ground short
    Text in Illustration
    *a
    		Component with harness connected
    (Network Gateway ECU)
    Result
    Result
    		Proceed to
    NG
    1. Open in CAN main wire
    		A
    NG
    1. Short in line
    2. +B short
    3. Ground short
    		B
    OK
    		C


B
Go to step 19

C
Go to step 69
A


4.CHECK FOR OPEN IN MAIN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR - NETWORK GATEWAY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E71 No. 7 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E71-1 (CANH) - E71-12 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 7 Junction Connector)


NG
Go to step 6
OK


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E71-3 (CANH) - E71-14 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 7 Junction Connector)


NG
Go to step 15
OK

REPLACE NO. 7 JUNCTION CONNECTOR

6.CONNECT CONNECTOR

  1. Reconnect the E71 No. 7 junction connector.


NEXT


7.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the F73 No. 6 junction connector.

  1. 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)


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)
OK


8.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. 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)


NG
Go to step 9
OK

REPLACE NO. 6 JUNCTION CONNECTOR

9.CONNECT CONNECTOR

  1. Reconnect the F73 No. 6 junction connector.


NEXT


10.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E68 No. 5 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E68-2 (CANH) - E68-13 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 5 Junction Connector)


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)
OK


11.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E68-1 (CANH) - E68-12 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 5 Junction Connector)


NG
Go to step 12
OK

REPLACE NO. 5 JUNCTION CONNECTOR

12.CONNECT CONNECTOR

  1. Reconnect the E68 No. 5 junction connector.


NEXT


13.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E74 No. 4 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-1 (CANH) - E74-12 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)
OK


14.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-2 (CANH) - E74-13 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)


NG
Go to step 17
OK

REPLACE NO. 4 JUNCTION CONNECTOR

15.CONNECT CONNECTOR

  1. Reconnect the E71 No. 7 junction connector.


NEXT


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the K29 No. 1 CAN junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    K29-1 (CANH) - K29-2 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 CAN Junction Connector)


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)
OK

REPLACE NO. 1 CAN JUNCTION CONNECTOR

17.CONNECT CONNECTOR

  1. Reconnect the E74 No. 4 junction connector.


NEXT


18.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NETWORK GATEWAY ECU - NO. 8 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  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
    E31-13 (CA2H) - E31-12 (CA2L)
    		Ignition switch off
    		108 to 132 Ω
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to Network Gateway ECU)


NG
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NETWORK GATEWAY ECU (NETWORK GATEWAY ECU - NO. 4 JUNCTION CONNECTOR)
OK

REPLACE NETWORK GATEWAY ECU (Click here)

19.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR SIDE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E71 No. 7 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E31-13 (CA2H) - E31-12 (CA2L)
    		Ignition switch off
    		108 to 132 Ω
    E31-13 (CA2H) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    E31-12 (CA2L) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    E31-13 (CA2H) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    E31-12 (CA2L) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Component with harness connected
    (Network Gateway ECU)
    Result
    Tester Connection
    		Switch Condition
    OK (for 1VD-FTV with DPF)
    		A
    OK (except 1VD-FTV with DPF)
    		B
    NG
    		C


B
Go to step 21

C
Go to step 23
A


20.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E71-4 (CANH) - E71-15 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E71-4 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E71-15 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E71-4 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E71-15 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 7 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 40
OK


21.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU)
NOTICE:
For vehicles without an pre-crash safety system, go to "Check for Short in CAN Bus Wires (No. 7 Junction Connector - No. 1 CAN Junction Connector)".


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E71-2 (CANH) - E71-13 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E71-2 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E71-13 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E71-2 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E71-13 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 7 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 42
OK


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E71-3 (CANH) - E71-14 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    E71-3 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E71-14 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E71-3 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E71-14 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 7 Junction Connector)
    *b
    		Front view of DLC3
    Result
    Tester Connection
    		Switch Condition
    OK
    		A
    NG (w/ Active Height Control Suspension)
    		B
    NG (w/o Active Height Control Suspension)
    		C


B
Go to step 44

C
Go to step 49
A

REPLACE NO. 7 JUNCTION CONNECTOR

23.CONNECT CONNECTOR

  1. Reconnect the E71 No. 7 junction connector.


NEXT


24.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the F73 No. 6 junction connector.

  1. 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
    F73-6 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F73-17 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F73-6 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    F73-17 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 6 Junction Connector)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)
OK


25.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR SIDE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E31-13 (CA2H) - E31-12 (CA2L)
    		Ignition switch off
    		108 to 132 Ω
    E31-13 (CA2H) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    E31-12 (CA2L) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    E31-13 (CA2H) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    E31-12 (CA2L) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Component with harness connected
    (Network Gateway ECU)
    Result
    Result
    		Proceed to
    OK (w/o TOYOTA Parking Assist-sensor System and w/o Side Monitor System)
    		A
    OK (w/ TOYOTA Parking Assist-sensor System and w/o Side Monitor System)
    		B
    OK (w/ Side Monitor System)
    		C
    NG
    		D


B
Go to step 26

C
Go to step 27

D
Go to step 28
A

REPLACE NO. 6 JUNCTION CONNECTOR

26.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F73-5 (CANH) - F73-16 (CANL)
    		Ignition switch off
    		200 Ω or higher
    F73-5 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F73-16 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F73-5 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    F73-16 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 6 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 51
OK

REPLACE NO. 6 JUNCTION CONNECTOR

27.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - PARKING ASSIST ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F73-5 (CANH) - F73-16 (CANL)
    		Ignition switch off
    		200 Ω or higher
    F73-5 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F73-16 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F73-5 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    F73-16 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 6 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 53
OK

REPLACE NO. 6 JUNCTION CONNECTOR

28.CONNECT CONNECTOR

  1. Reconnect the F73 No. 6 junction connector.


NEXT


29.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E68 No. 5 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E68-2 (CANH) - E68-13 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    E68-2 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E68-13 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E68-2 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E68-13 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 5 Junction Connector)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)
OK


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E31-13 (CA2H) - E31-12 (CA2L)
    		Ignition switch off
    		108 to 132 Ω
    E31-13 (CA2H) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    E31-12 (CA2L) - E31-4 (GND)
    		Ignition switch off
    		200 Ω or higher
    E31-13 (CA2H) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    E31-12 (CA2L) - E31-2 (BATT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Component with harness connected
    (Network Gateway ECU)


NG
Go to step 33
OK


31.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - YAW RATE SENSOR ASSEMBLY)
NOTICE:
For vehicles without an vehicle stability control system, go to "Check for Short in CAN Bus Wires (No. 5 Junction Connector - Distance Control ECU Assembly)".


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E68-3 (CANH) - E68-14 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E68-3 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E68-14 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E68-3 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E68-14 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 5 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 55
OK


32.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - DISTANCE CONTROL ECU ASSEMBLY)
NOTICE:
For vehicles without an dynamic radar cruise control system, replace No. 5 junction connector..


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E68-4 (CANH) - E68-15 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E68-4 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E68-15 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E68-4 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E68-15 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 5 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 57
OK

REPLACE NO. 5 JUNCTION CONNECTOR

33.CONNECT CONNECTOR

  1. Reconnect the E68 No. 5 junction connector.


NEXT


34.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E74 No. 4 junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-1 (CANH) - E74-12 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    E74-1 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-12 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-1 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E74-12 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)
OK


35.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - 4WD CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-6 (CANH) - E74-17 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E74-6 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-17 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-6 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E74-17 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 59
OK


36.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - STEERING CONTROL ECU)
NOTICE:
For vehicles without an variable gear ratio steering system, go to "Check for Short in CAN Bus Wires (No. 4 Junction Connector - Steering Angle Sensor)".


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-3 (CANH) - E74-14 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E74-3 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-14 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-3 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E74-14 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 61
OK


37.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)
NOTICE:
For vehicles without an vehicle stability control system, go to "Check for Short in CAN Bus Wires (No. 4 Junction Connector - Skid Control ECU)".


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-4 (CANH) - E74-15 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E74-4 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-15 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-4 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E74-15 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 63
OK


38.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - SKID CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-5 (CANH) - E74-16 (CANL)
    		Ignition switch off
    		200 Ω or higher
    E74-5 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-16 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-5 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E74-16 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 65
OK


39.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E74-2 (CANH) - E74-13 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    E74-2 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-13 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E74-2 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E74-13 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 4 Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 67
OK

REPLACE NO. 4 JUNCTION CONNECTOR

40.CONNECT CONNECTOR

  1. Reconnect the E71 No. 7 junction connector.


NEXT


41.CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E102 power steering ECU assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E102-1 (CANH) - E102-2 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    E102-1 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E102-2 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E102-1 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E102-2 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Power Steering ECU Assembly)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER STEERING ECU ASSEMBLY (CANH, CANL)
OK

REPLACE POWER STEERING ECU ASSEMBLY (Click here)

42.CONNECT CONNECTOR

  1. Reconnect the E71 No. 7 junction connector.


NEXT


43.CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E42 seat belt control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E42-1 (CANH) - E42-2 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    E42-1 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E42-2 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E42-1 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E42-2 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Seat Belt Control ECU)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SEAT BELT CONTROL ECU (CANH, CANL)
OK

REPLACE SEAT BELT CONTROL ECU (Click here)

44.CONNECT CONNECTOR

  1. Reconnect the E71 No. 7 junction connector.


NEXT


45.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the K39 No. 1 CAN junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    K39-1 (CANH) - K39-2 (CANL)
    		Ignition switch off
    		200 Ω or higher
    K39-1 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K39-2 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K39-1 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    K39-2 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 CAN Junction Connector)
    *b
    		Front view of DLC3


NG
Go to step 47
OK


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the K29 No. 1 CAN junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    K29-1 (CANH) - K29-2 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    K29-1 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K29-2 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K29-1 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    K29-2 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 CAN Junction Connector)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)
OK

REPLACE NO. 1 CAN JUNCTION CONNECTOR

47.CONNECT CONNECTOR

  1. Reconnect the K39 No. 1 CAN junction connector.


NEXT


48.CHECK FOR SHORT IN CAN BUS WIRES (SUSPENSION CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the K34 suspension control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    K34-7 (CANH) - K34-8 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    K34-7 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K34-8 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K34-7 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    K34-8 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to Suspension Control ECU)
    *b
    		Front view of DLC3


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

REPLACE SUSPENSION CONTROL ECU (Click here)

49.CONNECT CONNECTOR

  1. Reconnect the E74 No. 7 junction connector.


NEXT


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the K29 No. 1 CAN junction connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    K29-1 (CANH) - K29-2 (CANL)
    		Ignition switch off
    		108 to 132 Ω
    K29-1 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K29-2 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    K29-1 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    K29-2 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to No. 1 CAN Junction Connector)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)
OK

REPLACE NO. 1 CAN JUNCTION CONNECTOR

51.CONNECT CONNECTOR

  1. Reconnect the F73 No. 6 junction connector.


NEXT


52.CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the F12 clearance warning ECU assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F12-3 (CANH) - F12-5 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    F12-3 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F12-5 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F12-3 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    F12-5 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Clearance Warning ECU Assembly)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (CANH, CANL)
OK

REPLACE CLEARANCE WARNING ECU ASSEMBLY (Click here)

53.CONNECT CONNECTOR

  1. Reconnect the F73 No. 6 junction connector.


NEXT


Go to step 47

54.CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the F76 parking assist ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F76-40 (CANH) - F76-39 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    F76-40 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F76-39 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    F76-40 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    F76-39 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to Parking Assist ECU)
    *b
    		Front view of DLC3


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

REPLACE PARKING ASSIST ECU (Click here)

55.CONNECT CONNECTOR

  1. Reconnect the E68 No. 5 junction connector.


NEXT


56.CHECK FOR SHORT IN CAN BUS WIRES (YAW RATE SENSOR ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E50 yaw rate sensor assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E50-3 (CANH) - E50-2 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    E50-3 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E50-2 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E50-3 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E50-2 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Yaw Rate Sensor Assembly)
    *b
    		Front view of DLC3


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

REPLACE YAW RATE SENSOR ASSEMBLY (Click here)

57.CONNECT CONNECTOR

  1. Reconnect the E68 No. 5 junction connector.


NEXT


58.CHECK FOR SHORT IN CAN BUS WIRES (DISTANCE CONTROL ECU ASSEMBLY)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E108 distance control ECU assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E108-8 (CANH) - E108-9 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    E108-8 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E108-9 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E108-8 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E108-9 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to Distance Control ECU Assembly)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DISTANCE CONTROL ECU ASSEMBLY (CANH, CANL)
OK

REPLACE DISTANCE CONTROL ECU ASSEMBLY (Click here)

59.CONNECT CONNECTOR

  1. Reconnect the E74 No. 4 junction connector.


NEXT


60.CHECK FOR SHORT IN CAN BUS WIRES (4WD CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the A27 4WD control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A27-19 (CAN+) - A29-20 (CAN-)
    		Ignition switch off
    		54 to 69 Ω
    A27-19 (CAN+) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    A29-20 (CAN-) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    A27-19 (CAN+) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    A29-20 (CAN-) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to 4WD Control ECU)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO 4WD CONTROL ECU (CAN+, CAN-)
OK

REPLACE 4WD CONTROL ECU (Click here)

61.CONNECT CONNECTOR

  1. Reconnect the E74 No. 4 junction connector.


NEXT


62.CHECK FOR SHORT IN CAN BUS WIRES (STEERING CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E79 suspension control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E79-9 (CANH) - E79-20 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    E79-9 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E79-20 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E79-9 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E79-20 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Steering Control ECU)
    *b
    		Front view of DLC3


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

REPLACE STEERING CONTROL ECU (Click here)

63.CONNECT CONNECTOR

  1. Reconnect the E74 No. 4 junction connector.


NEXT


64.CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the E11 steering angle sensor connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E11-10 (CANH) - E11-9 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    E11-10 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E11-9 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E11-10 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E11-9 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Steering Angle Sensor)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEERING ANGLE SENSOR (CAMH, CANL)
OK

REPLACE STEERING ANGLE SENSOR (Click here)

65.CONNECT CONNECTOR

  1. Reconnect the E74 No. 4 junction connector.


NEXT


66.CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Disconnect the A24 master cylinder solenoid (skid control ECU) connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A24-11 (CANH) - A24-25 (CANL)
    		Ignition switch off
    		54 to 69 Ω
    A24-11 (CANH) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    A24-25 (CANL) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    A24-11 (CANH) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    A24-25 (CANL) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Master Cylinder Solenoid [Skid Control ECU])
    *b
    		Front view of DLC3


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

REPLACE MASTER CYLINDER SOLENOID (SKID CONTROL ECU) (Click here)

67.CONNECT CONNECTOR

  1. Reconnect the E74 No. 4 junction connector.


NEXT


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


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  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
    E31-13 (CA2H) - E31-12 (CA2L)
    		Ignition switch off
    		54 to 69 Ω
    E31-13 (CA2H) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E31-12 (CA2L) - E22-4 (CG)
    		Ignition switch off
    		200 Ω or higher
    E31-13 (CA2H) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    E31-12 (CA2L) - E22-16 (BAT)
    		Ignition switch off
    		6 kΩ or higher
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to Network Gateway ECU)
    *b
    		Front view of DLC3


NG
REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NETWORK GATEWAY ECU (CA2H, CA2L)
OK

REPLACE NETWORK GATEWAY ECU (Click here)

69.CHECK HARNESS AND CONNECTOR (NETWORK GATEWAY ECU - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Networking.Lin Communication System. Dtc U1002 (Can No. 2 Bus) Lost Communication With Gateway Module (Network Gateway Ecu)

  1. Connect the cable to the negative (-) battery terminal.

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

  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
    		Condition
    		Specified Condition
    E31-4 (GND) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E31-2 (BATT) - Body ground
    		Always
    		11 to 14 V
    E31-9 (IG2) - Body ground
    		Ignition switch ON
    		11 to 14 V
    E31-10 (IG1) - Body ground
    		Ignition switch ON
    		11 to 14 V
Text in Illustration
*a
Rear view of wire harness connector
(to Network Gateway ECU)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE NETWORK GATEWAY ECU (Click here)