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Terminals Of Ecu

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Turn the ignition switch OFF before measuring the resistances of the main wire and branch wire.
  • After the ignition switch is turned OFF, check that the key reminder warning system and light reminder warning system are 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.

HINT:

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

  1. JUNCTION CONNECTOR 
    1. No. 1 junction connector
      Fig 1: Identifying A36 Junction Connector Terminals
      G05586568Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      No. 1 Junction Connector Wiring Color Connect to
      CANH (A36-1) R ABS and traction actuator (skid control ECU)
      CANL (A36-12) W ABS and traction actuator (skid control ECU)
      CANH (A36-2) Y ECM
      CANL (A36-13) W ECM
      CANH (A36-3) L No. 2 junction connector
      CANL (A36-14) W No. 2 junction connector
    2. No. 2 junction connector
      Fig 2: Identifying E68 Junction Connector Terminals
      G05586569Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      No. 2 Junction Connector Wiring Color Connect to
      CANH (E68-3) L No. 1 junction connector
      CANL (E68-14) W No. 1 junction connector
      CANH (E68-6) L Yaw rate sensor
      CANL (E68-17) W Yaw rate sensor
      CANH (E68-4) Y Power steering ECU
      CANL (E68-15) W Power steering ECU
      CANH (E68-8) R Main body ECU
      CANL (E68-19) W Main body ECU
      CANH (E68-7) BR Steering angle sensor
      CANL (E68-18) W Steering angle sensor
      CANH (E68-2) B DLC3
      CANL (E68-13) W DLC3
      CANH (E68-5) V Air conditioning amplifier
      CANL (E68-16) W Air conditioning amplifier
      CANH (E68-1) O No. 3 junction connector
      CANL (E68-12) W No. 3 junction connector
    3. No. 3 junction connector
      Fig 3: Identifying E70 Junction Connector Terminals
      G05586570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      No. 2 junction connector Wiring Color Connect to
      CANH (E70-3) O No. 2 junction connector
      CANL (E70-14) W No. 2 junction connector
      CANH (E70-1) B Center airbag sensor assembly
      CANL (E70-12) W Center airbag sensor assembly
      CANH (E70-2) V No. 4 junction connector
      CANL (E70-13) W No. 4 junction connector
    4. No. 4 junction connector
      Fig 4: Identifying E69 Junction Connector Terminals
      G05586571Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      No. 4 Junction Connector Wiring Color Connect to
      CANH (E69-4) V No. 3 junction connector
      CANL (E69-15) W No. 3 junction connector
      CANH (E69-7) P 4WD control ECU*
      CANL (E69-18) W 4WD control ECU*
      CANH (E69-5) G Combination meter ECU
      CANL (E69-16) W Combination meter ECU
      HINT:
      *: for 4WD
  2. CHECK DLC3 
    1. Measure the resistance of the connector.
      Fig 5: Identifying DLC3 Connector Terminals
      G05586572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E13-6) - CANL (E13-14) B - W Ignition switch OFF 54 to 69 Ω
      CANH (E13-6) - CG (E13-4) B - BR Ignition switch OFF 200 Ω or more
      CANL (E13-14) - CG (E13-4) W - BR Ignition switch OFF 200 Ω or more
      CANH (E13-6) - BAT (E13-16) B - L Ignition switch OFF 6 kΩ or more
      CANL (E13-14) - BAT (E13-16) W - L Ignition switch OFF 6 kΩ or more
  3. CHECK ABS AND TRACTION ACTUATOR (SKID CONTROL ECU) 
    Fig 6: Identifying A19 Connector Terminals
    G05586573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A19 ECU connector.
    2. Measure the resistance of the wire harness side connector.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (A19-11) - CANL (A19-25) R - W Ignition switch OFF 54 to 69 Ω
      CANH (A19-11) - GND1 (A19-32) R - W-B Ignition switch OFF 200 Ω or more
      CANL (A19-25) - GND1 (A19-32) W - W-B Ignition switch OFF 200 Ω or more
      CANH (A19-11) - +BS (A19-31) R - W Ignition switch OFF 6 kΩ or more
      CANL (A19-25) - +BS (A19-31) W - W Ignition switch OFF 6 kΩ or more
  4. CHECK STEERING ANGLE SENSOR 
    Fig 7: Identifying E11 Steering Angle Sensor Connector Terminals
    G05586574Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E11 sensor connector.
    2. Measure the resistance of the wire harness side connector.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E11-10) - CANL (E11-9) BR - W Ignition switch OFF 54 to 69 Ω
      CANH (E11-10) - ESS (E11-2) BR - W-B Ignition switch OFF 200 Ω or more
      CANL (E11-9) - ESS (E11-2) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E11-10) - BAT (E11-3) BR - R Ignition switch OFF 6 kΩ or more
      CANL (E11-9) - BAT (E11-3) W - R Ignition switch OFF 6 kΩ or more
  5. CHECK YAW RATE SENSOR 
    Fig 8: Identifying E13 And K6 Yaw Rate Sensor Connector Terminals
    G05586575Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K6 sensor connector.
    2. Measure the resistance of the wire harness side connector.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (K6-3) - CANL (K6-2) L - W Ignition switch OFF 54 to 69 Ω
      CANH (K6-3) - GND (K6-1) L - W-B Ignition switch OFF 200 Ω or more
      CANL (K6-2) - GND (K6-1) W - W-B Ignition switch OFF 200 Ω or more
      CANH (K6-3) - BAT (E13-16) L - L Ignition switch OFF 6 kΩ or more
      CANL (K6-2) - BAT (E13-16) W - L Ignition switch OFF 6 kΩ or more
  6. CHECK AIR CONDITIONING AMPLIFIER (for Automatic Air Conditioning System) 
    Fig 9: Identifying E37 Connector Terminals
    G05586576Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E37 amplifier connector.
    2. Measure the resistance of the wire harness side connector.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E37-11) - CANL (E37-12) V - W Ignition switch OFF 54 to 69 Ω
      CANH (E37-11) - GND (E37-14) V - W-B Ignition switch OFF 200 Ω or more
      CANL (E37-12) - GND (E37-14) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E37-11) - B (E37-21) V - R Ignition switch OFF 6 kΩ or more
      CANL (E37-12) - B (E37-21) W - R Ignition switch OFF 6 kΩ or more
  7. CHECK AIR CONDITIONING AMPLIFIER (for Manual Air Conditioning System) 
    Fig 10: Identifying E36 Amplifier Connector Terminal
    G05586577Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E36 amplifier connector.
    2. Measure the resistance of the wire harness side connector.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E36-8) - CANL (E36-9) V - W Ignition switch OFF 54 to 69 Ω
      CANH (E36-8) - GND (E36-24) V - W-B Ignition switch OFF 200 Ω or more
      CANL (E36-9) - GND (E36-24) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E36-8) - BAT (E13-16) V - L Ignition switch OFF 6 kΩ or more
      CANL (E36-9) - BAT (E13-16) W - L Ignition switch OFF 6 kΩ or more
  8. CHECK ECM 
    Fig 11: Identifying B30 And A9 ECM Connector Terminals
    G05586578Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A9 and B30 ECM connectors.
    2. Measure the resistance of the wire harness side connectors.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (A9-41) - CANL (A9-49) Y - W Ignition switch OFF 108 to 132 Ω
      CANH (A9-41) - E1 (B30-104)*1 Y - BR Ignition switch OFF 200 Ω or more
      CANL (A9-49) - E1 (B30-104)*1 W - BR Ignition switch OFF 200 Ω or more
      CANH (A9-41) - E1 (B30-81)*2 Y - BR Ignition switch OFF 200 Ω or more
      CANL (A9-49) - E1 (B30-81)*2 W - BR Ignition switch OFF 200 Ω or more
      CANH (A9-41) - BATT (A9-20) Y - W Ignition switch OFF 6 kΩ or more
      CANL (A9-49) - BATT (A9-20) W - W Ignition switch OFF 6 kΩ or more
      HINT:
      *1: for 2AZ-FE
      *2: for 2GR-FE
  9. CHECK CENTER AIRBAG SENSOR ASSEMBLY 
    Fig 12: Identifying E13 And E45 Center Airbag Sensor Connector Terminal
    G05586579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E45 sensor connector.
    2. Measure the resistance of the wire harness side connectors.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E45-13) - CANL (E45-22) B - W Ignition switch OFF 54 to 69 Ω
      CANH (E45-13) - E1 (E45-25) B - W-B Ignition switch OFF 200 Ω or more
      CANL (E45-22) - E1 (E45-25) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E45-13) - BAT (E13-16) B - L Ignition switch OFF 6 kΩ or more
      CANL (E45-22) - BAT (E13-16) W - L Ignition switch OFF 6 kΩ or more
  10. CHECK POWER STEERING ECU 
    Fig 13: Identifying E18 And A1 Power Steering ECU Connector Terminals
    G05586580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A1 and E18 ECU connectors.
    2. Measure the resistance of the wire harness side connectors.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E18-2) - CANL (E18-8) Y - W Ignition switch OFF 54 to 69 Ω
      CANH (E18-2) - PGND (A1-2) Y - W-B Ignition switch OFF 200 Ω or more
      CANL (E18-8) - PGND (A1-2) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E18-2) - PIG (A1-1) Y - W-B Ignition switch OFF 6 kΩ or more
      CANL (E18-8) - PIG (A1-1) W - W-B Ignition switch OFF 6 kΩ or more
  11. CHECK COMBINATION METER ECU 
    Fig 14: Identifying E19 Combination Meter ECU Connector Terminals
    G05586581Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E19 ECU connector.
    2. Measure the resistance of the wire harness side connector.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E19-32) - CANL (E19-31) G - W Ignition switch OFF 108 to 132 Ω
      CANH (E19-32) - ET (E19-33) G - BR Ignition switch OFF 200 Ω or more
      CANL (E19-31) - ET (E19-33) W - BR Ignition switch OFF 200 Ω or more
      CANH (E19-32) - B (E19-22) G - R Ignition switch OFF 6 kΩ or more
      CANL (E19-31) - B (E19-22) W - R Ignition switch OFF 6 kΩ or more
  12. CHECK INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) 
    Fig 15: Identifying IB And IE Instrument Panel Junction Block Connector Terminal
    G05586582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 16: Identifying E17 Instrument Panel Junction Block Connector Terminals
    G05586583Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the IB and IE junction block connectors.
    2. Disconnect the E17 ECU connector.
    3. Measure the resistance of the wire harness side connectors.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E17-15) - CANL (E17-16) R - W Ignition switch OFF 54 to 69 Ω
      CANH (E17-15) - GND1 (IE-17) R - W-B Ignition switch OFF 200 Ω or more
      CANL (E17-16) - GND1 (IE-17) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E17-15) - B (IB-30) R - R Ignition switch OFF 6 kΩ or more
      CANL (E17-16) - B (IB-30) W - R Ignition switch OFF 6 kΩ or more
  13. CHECK 4WD CONTROL ECU (for 4WD) 
    Fig 17: Identifying E57 4WD Control ECU (For 4WD) Connector Terminals
    G05586584Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E57 ECU connector.
    2. Measure the resistance of the wire harness side connector.
      CONNECTOR TERMINAL WIRING COLOR REFERENCE

      Symbols (Terminal No.) Wiring Color Condition Specified Condition
      CANH (E57-14) - CANL (E57-16) P - W Ignition switch OFF 54 to 69 Ω
      CANH (E57-14) - GND (E57-23) P - W-B Ignition switch OFF 200 Ω or more
      CANL (E57-16) - GND (E57-23) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E57-14) - BSLC (E57-9) P - R Ignition switch OFF 6 kΩ or more
      CANL (E57-16) - BSLC (E57-9) W - R Ignition switch OFF 6 kΩ or more
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