LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2008 >> IS 250 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication >> Can Communication System >> Terminals Of Ecu

Terminals Of Ecu

HINT:

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

  1. CAN J/C (CAN LH J/C, CAN RH J/C) 

    HINT:

    • The connectors connected to the CAN J/C can be distinguished by the colors of the bus lines and the connecting side of the junction connector.
    • The connectors can be connected to any terminals on the same side.
    1. CAN LH J/C
      Fig 1: Identifying CAN RH J/C Connector Terminal
      G05828556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Wiring color: 

      CONNECTOR TERMINALS REFERENCE CHART

      CAN LH J/C A Side (with Earth Terminal) Code Color (CANH Side) Color (CANL Side)
      Steering angle sensor J1 P W
      ECM J2 B W
      Seat belt control ECU J3 V W
      Center airbag sensor J4 R W

      Wiring color: 

      CONNECTOR TERMINALS REFERENCE CHART

      CAN LH J/C B Side (without Earth Terminal) Code Color (CANH Side) Color (CANL Side)
      Yaw rate sensor J5 P W
      Skid control ECU (without VDIM) J6 R W
      CAN main bus line (bus line connecting CAN LH J/C and CAN RH J/C) J7 B W
      DLC3 J8 G W
      Distance control ECU J9 GR W
    2. CAN RH J/C
      Fig 2: Identifying CAN RH J/C Connector Terminal
      G05828557Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Wiring color: 

      CONNECTOR TERMINALS REFERENCE CHART

      CAN RH J/C A Side (with Earth Terminal) Code Color (CANH Side) Color (CANL Side)
      CAN main bus line (bus line connecting CAN RH J/C and CAN LH J/C) J81 B W
      Power steering ECU J82 P W
      Skid control ECU (with VDIM) J83 R W

      Wiring color: 

      CONNECTOR TERMINALS REFERENCE CHART

      CAN RH J/C B Side (without Earth Terminal) Code Color (CANH Side) Color (CANL Side)
      Gateway ECU J84 B W
      4WD control ECU J86 V W
    3. The terminals on connectors for the CAN J/C
      CONNECTOR TERMINALS REFERENCE CHART

      Terminal Terminal symbol
      1 CANH
      2 CANL
      Fig 3: Identifying CAN J/C Connector Terminal
      G05281949Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Wiring diagram for identifying CAN J/C connectors
      Fig 4: CAN J/C Connectors - Wiring Diagram
      G05828559Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. DLC3 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 5: Identifying DLC3 Connector Terminal CG
      G05828560Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      J21-6 (CANH) - J21-14 (CANL) G-W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      J21-6 (CANH) - J21-4 (CG) G - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J21-14 (CANL) - J21-4 (CG) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J21-6 (CANH) - J21-16 (BAT) G-L HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      J21-14 (CANL) - J21-16 (BAT) W-L LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  3. SKID CONTROL ECU (with VDIM) 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 6: Identifying Skid Control ECU Connector Terminals J78 And J77 With DLC3 Connector Terminal
      G05828561Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      J77-8 (CANH) - J77-16 (CANL) R - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      J77-8 (CANH) - J78-26 (GND1) R - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J77-16 (CANL) - J78-26 (GND1) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J77-8 (CANH) - J21-16 (BAT) R - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      J77-16 (CANL) - J21-16 (BAT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  4. SKID CONTROL ECU WITH ACTUATOR (without VDIM) 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 7: Identifying Skid Control ECU Connector Terminals A14
      G05828562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      A14-11 (CANH) - A14-25 (CANL) B - R HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      A14-11 (CANH) - A14-32 (GND1) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A14-25 (CANL) - A14-32 (GND1) R - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A14-11 (CANH) - A14-31 (+BS) B - BR HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      A14-25 (CANL) - A14-31 (+BS) R - BR LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  5. STEERING ANGLE SENSOR 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 8: Identifying Steering Angle Sensor Connector Terminals J23
      G05828563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      J23-10 (CANH) - J23-9 (CANL) P - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      J23-10 (CANH) - J23-2 (ESS) P - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J23-9 (CANL) - J23-2 (ESS) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J23-10 (CANH) - J23-3 (BAT) P-LG HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      J23-9 (CANL) - J23-3 (BAT) W-LG LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  6. YAW RATE SENSOR 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 9: Identifying Yaw Rate Sensor Connector Terminals J41 And DLC3 Connector Terminal
      G05828564Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      J41-3 (CANH) - J41-2 (CANL) P-W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      J41-3 (CANH) - J41-1 (GND) P - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J41-2 (CANL) - J41-1 (GND) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J41-3 (CANH) - J21-16 (BAT) P-L HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      J41-2 (CANL) - J21-16 (BAT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  7. DISTANCE CONTROL ECU 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 10: Identifying Distance Control ECU Connector Terminals J17
      G05828565Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Condition Specified Condition
      J17-8 (CANH) - J17-9 (CANL) GR-W Engine Switch off 54 to 69 Ω
      J17-8 (CANH) - J17-12 (GND) GR - BR Engine Switch off 1 kΩ or higher
      J17-9 (CANL) - J17-12 (GND) W - BR Engine Switch off 1 kΩ or higher
      J17-8 (CANH) - J21-16 (BAT) GR-L Engine Switch off 1 MΩ or higher
      J17-9 (CANL) - J21-16 (BAT) W-L Engine Switch off 1 MΩ or higher
  8. SEAT BELT CONTROL ECU 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 11: Identifying Seat Belt Control ECU Connector Terminals Q38
      G05828566Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      Q38-4 (CANH) - Q38-6 (CANL) B-W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      Q38-4 (CANH) - Q38-18 (PGND) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      Q38-6 (CANL) - Q38-18 (PGND) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      Q38-4 (CANH) - Q38-9 (+B) B - W HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      Q38-6 (CANL) - Q38-9 (+B) W - W LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  9. 4WD CONTROL ECU 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 12: Identifying 4WD Control ECU Connector Terminals A32
      G05828567Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      A32-1 (CANH) - A32-14 (CANL) B - V HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      A32-1 (CANH) - A32-30 (GND) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A32-14 (CANL) - A32-30 (GND) V - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A32-1 (CANH) - J21-16 (BAT) B - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      A32-14 (CANL) - J21-16 (BAT) V - L LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  10. POWER STEERING ECU 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 13: Identifying Power Steering ECU Connector Terminals A31
      G05828568Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      A31-2 (CANH) - A31-3 (CANL) B-R HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      A31-2 (CANH) - A31-5 (PGND) B-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A31-3 (CANL) - A31-5 (PGND) R-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A31-2 (CANH) - A31-4 (PIG) B-R HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      A31-3 (CANL) - A31-4 (PIG) R-R LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  11. CENTER AIRBAG SENSOR 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 14: Identifying Center Airbag Sensor Connector Terminals J47
      G05828569Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      J47-13 (CANH) - J47-22 (CANL) R - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω
      J47-13 (CANH) - J47-25 (E1) R - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J47-22 (CANL) - J47-25 (E1) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J47-13 (CANH) - J21-16 (BAT) R - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      J47-22 (CANL) - J21-16 (BAT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  12. ECM 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 15: Identifying ECM Connector Terminals A5
      G05828570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Condition Specified Condition
      A5-25 (CANH) - A5-24 (CANL) Engine Switch off 108 to 132 Ω
    2. Measure the resistance according to the value (s) in the table below.
      Fig 16: Identifying ECM Connector Terminals A5
      G05828571Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      A5-25 (CANH) - AS-24 (CANL) B - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 108 to 132 Ω
      A5-25 (CANH) - A5-2 (EC) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A5-24 (CANL) - A5-2 (EC) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      A5-25 (CANH) - A5-4 (BATT) B - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
      A5-24 (CANL) - A5-4 (BATT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
  13. GATEWAY ECU 
    1. Measure the resistance according to the value (s) in the table below.
      Fig 17: Identifying Gateway ECU Connector Terminals J76
      G05828572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Condition Specified Condition
      J76-17 (CA1H) - J76-18 (CA1L) Engine Switch off 108 to 132 Ω
    2. Measure the resistance according to the value (s) in the table below.
      Fig 18: Identifying Gateway ECU Connector Terminals J76
      G05828573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION CHART

      Terminals Wiring Color Terminal Description Condition Specified Condition
      J76-17 (CA1H) - J76-18 (CA1L) B - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 108 to 132 Ω
      J76-17 (CA1H) - J76-24 (GND) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J76-18 (CA1L) - J76-24 (GND) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher
      J76-17 (CA1H) - J76-10 (BATT) B - LG HIGH-level CAN bus line - Battery positive Engine Switch off 1 Ma or higher
      J76-18 (CA1L) - J76-10 (BATT) W - LG LOW-level CAN bus line - Battery positive Engine Switch off 1 MΩ or higher
scientia non olet · About LEMON Manuals