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Terminals Of Ecu

WARNING: This page is about a different car, the 2007 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
      G04492647Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      No. 1 JUNCTION CONNECTOR A36 SPECIFICATIONS

      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
      G04492648Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      No. 2 JUNCTION CONNECTOR E68 SPECIFICATIONS

      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
      G04492649Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      No. 3 JUNCTION CONNECTOR E70 SPECIFICATIONS

      No. 3 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
      G04492650Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      No. 4 JUNCTION CONNECTOR E69 SPECIFICATIONS

      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
      G04492651Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      DLC3 CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (E13-14) - BAT (E13-16) W - L Ignition switch OFF 1 MΩ or more
  3. CHECK ABS AND TRACTION ACTUATOR (SKID CONTROL ECU) 
    Fig 6: Identifying A19 Skid Control ECU Connector Terminals
    G04492652Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A19 ECU connector.
    2. Measure the resistance of the wire harness side connector.
      A19 ECU CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (A19-25) - +BS (A19-31) W - W Ignition switch OFF 1 MΩ or more
  4. CHECK STEERING ANGLE SENSOR 
    Fig 7: Identifying E11 Steering Angle Sensor Connector Terminals
    G04492653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E11 sensor connector.
    2. Measure the resistance of the wire harness side connector.
      E11 CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (E11-9) - BAT (E11-3) W - R Ignition switch OFF 1 MΩ or more
  5. CHECK YAW RATE SENSOR 
    Fig 8: Identifying E13 And K6 Yaw Rate Sensor Connector Terminals
    G04492654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K6 sensor connector.
    2. Measure the resistance of the wire harness side connector.
      K6 CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (K6-2) - BAT (E13-16) W - L Ignition switch OFF 1 MΩ or more
  6. CHECK AIR CONDITIONING AMPLIFIER (for Automatic Air Conditioning System) 
    Fig 9: Identifying E37 Connector Terminals
    G04492655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E37 amplifier connector.
    2. Measure the resistance of the wire harness side connector.
      E37 CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (E37-12) - B (E37-21) W - R Ignition switch OFF 1 MΩ or more
  7. CHECK AIR CONDITIONING AMPLIFIER (for MANUAL AIR CONDITIONING SYSTEM) 
    Fig 10: Identifying E13 And E36 Connector Terminals
    G04492656Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E36 amplifier connector.
    2. Measure the resistance of the wire harness side connector.
      E36 CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANH (E36-9) - BAT (E13-16) W - L Ignition switch OFF 1 MΩ or more
  8. CHECK ECM 
    Fig 11: Identifying B30 And A9 ECM Connector Terminals
    G04492657Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A9 and B30 ECM connectors.
    2. Measure the resistance of the wire harness side connectors.
      B30 & A9 ECM CONNECTORS SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (A9-49) - BATT (A9-20) W - W Ignition switch OFF 1 MΩ 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 Terminals
    G04492658Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E45 sensor connector.
    2. Measure the resistance of the wire harness side connectors.
      E13 & E45 CONNECTORS SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (E45-22) - BAT (E13-16) W - L Ignition switch OFF 1 MΩ or more
  10. CHECK POWER STEERING ECU 
    Fig 13: Identifying E18 And A1 Power Steering ECU Connector Terminals
    G04492659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A1 and E18 ECU connectors.
    2. Measure the resistance of the wire harness side connectors.
      E18 & A1 CONNECTORS SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (E18-8) - PIG (A1-1) W - W-B Ignition switch OFF 1 MΩ or more
  11. CHECK COMBINATION METER ECU 
    Fig 14: Identifying E19 Combination Meter ECU Connector Terminals
    G04492660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E19 ECU connector.
    2. Measure the resistance of the wire harness side connector.
      E19 ECU CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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) - CANL (E19-31) 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 1 MΩ or more
      CANL (E19-31) - B (E19-22) W - R Ignition switch OFF 1 MΩ or more
  12. CHECK INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) 
    Fig 15: Identifying 1B And 1E Instrument Panel Junction Block Connector Terminals
    G04492661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 16: Identifying E17 Instrument Panel Junction Block Connector Terminals
    G04492662Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the 1B and 1E junction block connectors.
    2. Disconnect the E17 ECU connector.
    3. Measure the resistance of the wire harness side connectors.
      1B, 1E & E17 CONNECTORS SPECIFIED CONDITION CHART (RESISTANCE)

      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 (1E-17) R - W-B Ignition switch OFF 200 Ω or more
      CANL (E17-16) - GND1 (1E-17) W - W-B Ignition switch OFF 200 Ω or more
      CANH (E17-15) - BECU (1B-30) R - R Ignition switch OFF 1 MΩ or more
      CANL (E17-16) - BECU (1B-30) W - R Ignition switch OFF 1 MΩ or more
  13. CHECK 4WD CONTROL ECU (for 4WD) 
    Fig 17: Identifying E57 4WD Control ECU Connector Terminals
    G04492663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E57 ECU connector.
    2. Measure the resistance of the wire harness side connector.
      E57 ECU CONNECTOR SPECIFIED CONDITION CHART (RESISTANCE)

      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 1 MΩ or more
      CANL (E57-16) - BSLC (E57-9) W - R Ignition switch OFF 1 MΩ or more
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