Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - NETWORKING

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PRECAUTION

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CHECK FOR OPEN IN CAN BUS WIRE (STEERING CONTROL ECU CAN BRANCH WIRE)

CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - BATTERY AND BODY GROUND)

DTC U0130 Lost Communication with Steering Effort Control Module

DESCRIPTION

DTC CodeDTC Detection ConditionTrouble Area
U0130There is no communication from the steering control ECU.
Power source circuit of steering control ECU
Steering control ECU CAN branch wire or connector
Steering control ECU
For vehicles with a variable gear ratio steering system.

WIRING DIAGRAM

Dtc U0130 Lost Communication With Steering Effort Control Module. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

  • NOTICE:
  • Inspect the fuses for circuits related to this system before performing the following 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 (STEERING CONTROL ECU CAN BRANCH WIRE)
Dtc U0130 Lost Communication With Steering Effort Control Module. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Disconnect the E79 steering control ECU connector.

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

  • Standard Resistance:
  • Tester ConnectionSwitch ConditionSpecified Condition
    E79-9 (CANH) - E79-20 (CANL)Ignition switch off54 to 69 Ω
Text in Illustration
*aRear view of wire harness connector
(to Steering Control ECU)
NG
REPAIR OR REPLACE STEERING CONTROL ECU BRANCH WIRE OR CONNECTOR (CANH, CANL)
OK
4.CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - BATTERY AND BODY GROUND)
Dtc U0130 Lost Communication With Steering Effort Control Module. NETWORKING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

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

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

Disconnect the E77 and E78 steering control ECU connectors.

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

  • Standard Voltage:
  • Tester ConnectionConditionSpecified Condition
    E77-10 (+BI) - Body groundAlways11 to 14 V
    E77-8 (PIG) - Body groundAlways11 to 14 V
    E77-3 (IG) - Body groundIgnition switch ON11 to 14 V

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

  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    E77-7 (PGND) - Body groundAlwaysBelow 1 Ω
    E78-8 (PGD2) - Body groundAlwaysBelow 1 Ω
Text in Illustration
*aRear view of wire harness connector
(to Steering Control ECU)
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE STEERING CONTROL ECU ()
NETWORKING
Land Cruiser URJ200 URJ202 GRJ200 VDJ200
CAN COMMUNICATION SYSTEM for LHD