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Terminals Of Ecu

HINT:

This article describes the standard CAN values for all CAN related components.

  1. JUNCTION CONNECTOR (J/C) 
    1. CAN J/C A side (w/ earth terminal) and CAN J/C B side (w/o earth terminal):

      HINT:

      • The connectors connected to the junction connector (J/C) can be distinguished by the colors of the bus lines and the connecting side of the connector.
      • The connectors can be connected to any terminals on the same side.
        Fig 1: Identifying Junction Connectors
        G04379537Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        CAN J/C CONNECTORS COLOR REFERENCE (A SIDE, W/ EARTH TERMINAL)

        CAN J/C Connectors (A side, w/ earth terminal) Color (CAN-H Side) Color (CAN-L Side)
        Steering sensor L W
        Yaw rate sensor R W
        ECM G W
        DLC3 P W
        CAN J/C CONNECTORS COLOR REFERENCE (B SIDE, W/O EARTH TERMINAL)

        CAN J/C Connectors (B side, w/o earth terminal) Color (CAN-H Side) Color (CAN-L Side)
        Skid control ECU with VSC actuator B W
        Skid control ECU with ABS actuator B W
        Distance control ECU L W
        Network gateway ECU W V
    2. The terminals on connectors for the J/C:
      TERMINALS AND TERMINALS SYMBOL REFERENCE

      Terminal Terminal symbol
      1 CANH
      2 CANL
      Fig 2: Identifying CAN J/C Connector
      G04379538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. WIRING DIAGRAM FOR IDENTIFYING J/C CONNECTORS
      Fig 3: Wiring Diagram For Identifying J/C Connectors
      G04379539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. DLC3 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 4: Identifying DLC3 Connectors
      G04379540Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Resistance 

      DLC3 TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      D20-6 (CANH) - D20-14 (CANL) P - W Ignition switch off 54 to 69 Ω
      D20-6 (CANH) - D20-4 (CG) P - W-B Ignition switch off 1 kΩ or more
      D20-14 (CANL) - D20-4 (CG) W - W-B Ignition switch off 1 kΩ or more
      D20-6 (CANH) - D20-16 (BAT) P - L Ignition switch off 1 MΩ or more
      D20-14 (CANL) - D20-16 (BAT) W - L Ignition switch off 1 MΩ or more
  3. SKID CONTROL ECU (Skid control ECU with VSC Actuator) 
    1. Disconnect the connector from the skid control ECU.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 5: Identifying Skid Control ECU Connectors
      G04379541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Resistance 

      ECU TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      A34-11 (CANH) - A34-25 (CANL) B - W Ignition switch off 108 to 132 Ω
      A34-11 (CANH) - A34-32 (GND1) B - W-B Ignition switch off 1 kΩ or more
      A34-25 (CANL) - A34-32 (GND1) W - W-B Ignition switch off 1 kΩ or more
      A34-11 (CANH) - A34-31 (+BS) B - L Ignition switch off 1 MΩ or more
      A34-25 (CANL) - A34-31 (+BS) W - L Ignition switch off 1 MΩ or more
  4. SKID CONTROL ECU (Skid control ECU with ABS Actuator) 
    1. Disconnect the connector from the skid control ECU.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 6: Identifying Skid Control ECU Connectors
      G04379542Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Resistance 

      ECU TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      A40-26 (CANH) - A40-15 (CANL) B - W Ignition switch off 108 to 132 Ω
      A40-26 (CANH) - A40-4 (GND1) B - W-B Ignition switch off 1 kΩ or more
      A40-15 (CANL) - A40-4 (GND1) W - W-B Ignition switch off 1 kΩ or more
      A40-26 (CANH) - A40-3 (+BS) B - L Ignition switch off 1 MΩ or more
      A40-15 (CANL) - A40-3 (+BS) W - L Ignition switch off 1 MΩ or more
  5. STEERING ANGLE SENSOR 
    1. Disconnect the connector from the steering angel sensor.
      Fig 7: Disconnecting Connector From Steering Angel Sensor
      G04379543Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      D12-10 (CANH) - D12-9 (CANL) L - W Ignition switch off 54 to 69 Ω
      D12-10 (CANH) - D12-2 (ESS) L - W-B Ignition switch off 1 kΩ or more
      D12-9 (CANL) - D12-2 (ESS) W - W-B Ignition switch off 1 kΩ or more
      D12-10 (CANH) - D12-3 (BAT) L - LG Ignition switch off 1 MΩ or more
      D12-9 (CANL) - D12-3 (BAT) W - LG Ignition switch off 1 MΩ or more
  6. YAW RATE SENSOR 
    1. Disconnect the connector from the yaw rate sensor.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 8: Identifying Yaw Rate Sensor Connector And DLC3 Connector
      G04379544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Resistance 

      TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      D28-3 (CANH) - D28-2 (CANL) R - W Ignition switch off 54 to 69 Ω
      D28-3 (CANH) - D28-1 (GND) R - W-B Ignition switch off 1 kΩ or more
      D28-2 (CANL) - D28-1 (GND) W - W-B Ignition switch off 1 kΩ or more
      D28-3 (CANH) - D20-16 (BAT) R - L Ignition switch off 1 MΩ or more
      D28-2 (CANL) - D20-16 (BAT) W - L Ignition switch off 1 MΩ or more
  7. Distance CONTROL ECU 
    1. Disconnect the connector from the distance control ECU.
      Fig 9: Disconnecting Connector From Distance Control ECU
      G04379545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      A20-8 (CANH) - A20-9 (CANL) L - W Ignition switch off 54 to 69 Ω
      A20-8 (CANH) - A20-12 (GND) L - R Ignition switch off 1 kΩ or more
      A20-9 (CANL) - A20-12 (GND) W - R Ignition switch off 1 kΩ or more
      A20-8 (CANH) - D20-16 (BAT) L - L Ignition switch off 1 MΩ or more
      A20-9 (CANL) - D20-16 (BAT) W - L Ignition switch off 1 MΩ or more
  8. ECM 
    1. Disconnect the connector from the ECM (A24) (B25) (D41).
    2. Measure the resistance according to the value(s) in the table below.
      Fig 10: Disconnecting ECM Connectors
      G04379546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Resistance 

      TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      D41-33 (CANH) - D41-34 (CANL) G - W Ignition switch off 108 to 132 Ω
      D41-33 (CANH) - B24-1 (E1) G Ignition switch off 1 kΩ or more
      D41-34 (CANL) - B24-1 (E1) W Ignition switch off 1 kΩ or more
      D41-33 (CANH) - A24-3 (BATT) G - B Ignition switch off 1 MΩ or more
      D41-34 (CANL) - A24-3 (BATT) W - B Ignition switch off 1 MΩ or more
  9. NETWORK GATEWAY ECU 
    1. Disconnect the connector from the network gateway ECU (E23).
      Fig 11: Disconnecting Connector From Network Gateway ECU
      G04379547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TERMINALS RESISTANCE SPECIFICATIONS

      Terminals Wiring Color Condition Specified Condition
      E23-17 (CA1H) - E23-18 (CA1L) W - V Ignition switch off 54 to 69 Ω
      E23-17 (CA1H) - E23-24 (GND) W - W-B Ignition switch off 1 kΩ or more
      E23-18 (CA1L) - E23-24 (GND) V - W-B Ignition switch off 1 kΩ or more
      E23-17 (CA1H) - E23-10 (BATT) W - B Ignition switch off 1 MΩ or more
      E23-18 (CA1L) - E23-10 (BATT) V - B Ignition switch off 1 MΩ or more