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Terminals Of Ecu

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

This service information describes the standard CAN values for all CAN related components.

  1. WIRING HARNESS CONNECTOR (CAN J/C1, CAN J/C2). 
    1. CAN J/C1
      Fig 1: Identifying CAN J/C1 Connector Terminals
      G05275041Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Distinguish the CAN J/C1 connectors by the color of the bus wires and the location of the connector.
        NOTE: Confirm the side of the connector (A side or B side) where the wires are connected. All terminals on the same side work equally.
        CAN J/C1 CONNECTORS REFERENCE

        CAN J/C1 connectors (A side, with earth wire) Code Color (CAN-H Side) Color (CAN-L Side)
        Skid control ECU J22 L W
        Steering angle sensor J23 B w
        ECM J49 R W
        Distance control ECU *1 J50 G W
        HINT:
        *1: with dynamic laser cruise control system
        CAN J/C1 CONNECTORS REFERENCE

        CAN J/C1 connectors (B side, without earth wire) Code Color (CAN-H Side) Color (CAN-L Side)
        DLC3 J25 B W
        Yaw rate sensor J26 L W
        CAN main bus wire (bus wire to connect CAN J/C1 and CAN J/C2) J27 GR W
        Gateway ECU J51 GR G
    2. CAN J/C2.
      1. Distinguish the CAN J/C2 connectors by the color of the bus wires.
        CAN J/C2 CONNECTORS REFERENCE

        CAN J/C2 connectors Code Color (CAN-H Side) Color (CAN-L Side)
        CAN main bus wire (bus wire to connect CAN J/C2 and CAN J/C1) J43 GR W
    3. The terminals on the connectors for the CAN J/C.
      CAN J/C CONNECTOR TERMINALS REFERENCE

      Terminal Terminal symbol
      1 CANH
      2 CANL
      Fig 2: Identifying CAN J/C Connector Terminals
      G05275042Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. WIRING DIAGRAM FOR IDENTIFYING CAN J/C CONNECTORS
      Fig 3: Identifying CAN J/C1 Connectors Wiring Diagram
      G05275043Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. DLC3 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 4: Identifying DLC3 Connector Terminals
      G05275044Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE

      Terminals Condition Specified condition
      6 (CANH) - 14 (CANL) IG switch OFF 54 to 69 Ω
      6 (CANH) - 4 (CG) IG switch OFF 200 Ω or higher
      14 (CANL) - 4 (CG) IG switch OFF 200 Ω or higher
      6 (CANH) - 16 (BAT) IG switch OFF 6 kΩ or higher
      14 (CANL) - 16 (BAT) IG switch OFF 6 kΩ or higher
  3. SKID CONTROL ECU 
    Fig 5: Identifying S1 Skid Control ECU Connector Terminals
    G05275045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE

      Terminals Condition Specified condition
      11 (CANH) - 25 (CANL) IG switch OFF 54 to 69 Ω
      11 (CANH) - 32 (GND1) IG switch OFF 200 Ω or higher
      25 (CANL) - 32 (GND1) IG switch OFF 200 Ω or higher
      11 (CANH) - 31 (+BS) IG switch OFF 6 kΩ or higher
      25 (CANL) - 31 (+BS) IG switch OFF 6 kΩ or higher
  4. STEERING ANGLE SENSOR 
    Fig 6: Identifying S10 Steering Angle Sensor Connector Terminals
    G05275046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE

      Terminals Condition Specified condition
      10 (CANH) - 9 (CANL) IG switch OFF 54 to 69 Ω
      10 (CANH) - 2 (ESS) IG switch OFF 200 Ω or higher
      9 (CANL) - 2 (ESS) IG switch OFF 200 Ω or higher
      10 (CANH) - 3 (BAT) IG switch OFF 6 kΩ or higher
      9 (CANL) - 3 (BAT) 16 switch OFF 6 kΩ or higher
  5. YAW RATE SENSOR 
    Fig 7: Identifying Yaw Rate Sensor
    G05275047Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.
      RESISTANCE SPECIFICATION TABLE

      Terminals Condition Specified condition
      Y1-3 (CANH) - Y1-2 (CANL) IG switch OFF 54 to 69 Ω
      Y1-3 (CANH) - Y1-1 (GND) IG switch OFF 200 Ω or higher
      Y1-2 (CANL) - Y1-1 (GND) IG switch OFF 200 Ω or higher
      Y1-3 (CANH) - D1-16 (BAT) IG switch OFF 6 kΩ or higher
      Y1-2 (CANL) - D1-16 (BAT) IG switch OFF 6 kΩ or higher
  6. ECM 
    Fig 8: Identifying ECM Connector Terminals
    G05275048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE

      Terminals Condition Specified condition
      E6-33 (CANH) - E6-34 (CANL) IG switch OFF 54 to 69 Ω
      E6-33 (CANH) - E7-1 (E1) IG switch OFF 200 Ω or higher
      E6-34 (CANL) - E7-1 (E1) IG switch OFF 200 Ω or higher
      E6-33 (CANH) - E5-3 (BATT) IG switch OFF 6 kΩ or higher
      E6-34 (CANL) - E5-3 (BATT) IG switch OFF 6 kΩ or higher
  7. GATEWAY ECU 
    Fig 9: Identifying G3 Gateway ECU Connector Terminals
    G05275049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE

      Terminals Condition Specified condition
      G3-17 (CA1H) - G3-18 (CA1L) IG switch OFF 54 to 69 Ω
      G3-17 (CA1H) - G3-24 (GND) IG switch OFF 200 Ω or higher
      G3-18 (CA1L) - G3-24 (GND) IG switch OFF 200 Ω or higher
      G3-17 (CA1H) - G3-10 (BATT) IG switch OFF 6 kΩ or higher
      G3-18 (CA1L) - G3-10 (BATT) IG switch OFF 6 kΩ or higher
  8. DISTANCE CONTROL ECU (with Dynamic Laser Cruise Control System) 
    Fig 10: Identifying Distance Control ECU Connector Terminals
    G05275050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE

      Terminals Condition Specified condition
      D2-8 (CANH) - D2-9 (CANL) IG switch OFF 54 to 69 Ω
      D2-8 (CANH) - D2-12 (GND) IG switch OFF 200 Ω or higher
      D2-9 (CANL) - D2-12 (GND) IG switch OFF 200 Ω or higher
      D2-8 (CANH) - D1-16 (BAT) IG switch OFF 6 kΩ or higher
      D2-9 (CANL) - D1-16 (BAT) IG switch OFF 6 kΩ or higher
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