CAN COMMUNICATION SYSTEM TERMINALS OF ECU

Note


  • Turn the Ignition switch OFF before measuring the resistances of the CAN main wire and the CAN branch wire.

  • After the ignition switch is turned to OFF, check that the light reminder warning system is not in operation.

  • Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If doors need to be opened in order to check connectors, open the doors and leave them open.

    Tech Tips

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


  1. JUNCTION CONNECTOR


    1. A01373EE09

      CAN Junction Connector

    2. A01373EE07

      CAN Junction Connector

      3. Tech Tips

      *1: 2WZ-TV

      *2: 1KR-FE

    3. Wiring diagram for identifying CAN junction connectors

      A0136S5E01

    4. DLC3

      A01381RE15

      Tech Tips

      For 2WZ-TV only.


      1. Turn the Ignition switch to OFF.

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

      5. Note

      *:Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors.

    5. ABS AND TRACTION ACTUATOR (SKID CONTROL ECU)

      A01364GE05

      1. Turn the Ignition switch to OFF.

      2. Disconnect the A41 ABS and traction actuator (skid control ECU) connector.

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

    6. STEERING SENSOR

      A0136YUE07

      1. Turn the Ignition switch to OFF.

      2. Disconnect the C43 steering sensor connector.

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

    7. YAW RATE SENSOR

      A0135XAE03

      1. Turn the Ignition switch to OFF.

      2. Disconnect the H25 yaw rate sensor connector.

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

    8. ECM (1KR-FE Engine)

      A0137VCE02

      1. Turn the Ignition switch to OFF.

      2. Disconnect the B25 and B26 ECM connector.

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

    9. ECM (for LHD of 2WZ-TV Engine)

      A0137HEE01

      1. Turn the Ignition switch to OFF.

      2. Disconnect the A35 and B53 ECM connector.

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

    10. ECM (for RHD of 2WZ-TV Engine)

      A01361UE01

      1. Turn the Ignition switch to OFF.

      2. Disconnect the A36 and B53 ECM connector.

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

    11. TRANSMISSION CONTROL ECU

      A0137DUE01

      Tech Tips

      For vehicle with multi-mode transaxle system only.


      1. Turn the Ignition switch to OFF.

      2. Disconnect the A27, A28 and A29 transmission control ECU connectors.

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