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Terminals Of Ecu

HINT:

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

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.
      CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
      NOTE:
      • Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the engine switch, any switches or doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
      • w/ Navigation System:

        After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.

  2. JUNCTION CONNECTOR 
    1. NO. 1 JUNCTION CONNECTOR
      Fig 1: Identifying No. 1 Junction Connector Terminals
      G05764955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 1 Junction Connector Wiring Color Connect to
      E72-1 (CANH) Y No. 2 junction connector
      E72-12 (CANL) B
      E72-2 (CANH) P ECM
      E72-13 (CANL) B
      E72-3 (CANH) LG AFS ECU (headlight swivel ECU)
      E72-14 (CANL) B
      E72-4 (CANH) GR Center airbag sensor
      E72-15 (CANL) B
    2. NO. 2 JUNCTION CONNECTOR
      Fig 2: Identifying No. 2 Junction Connector Terminals
      G05764956Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 2 Junction Connector Wiring Color Connect to
      E69-1 (CANH) Y No. 1 junction connector
      E69-12 (CANL) B
      E69-2 (CANH) P Display and navigation module display(1)
      Multi-display(2)
      E69-13 (CANL) B
      E69-3 (CANH) BR Network gateway ECU (V bus)
      E69-14 (CANL) B
      E69-4 (CANH) W No. 3 junction connector
      E69-15 (CANL) B
      E69-5 (CANH) G Air conditioning amplifier
      E69-16 (CANL) B
      (1) w/ Navigation System

      (2) w/o Navigation System
    3. NO. 3 JUNCTION CONNECTOR
      Fig 3: Identifying No. 3 Junction Connector Terminals
      G05639403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 3 Junction Connector Wiring Color Connect to
      E75-1 (CANH) W No. 2 junction connector
      E75-12 (CANL) B
      E75-2 (CANH) G DLC3
      E75-13 (CANL) B
      E75-3 (CANH) V Combination meter (V bus)
      E75-14 (CANL) B
      E75-4 (CANH) SB Main body ECU (cowl side junction block LH)
      E75-15 (CANL) B (V bus)
    4. NO. 4 JUNCTION CONNECTOR
      Fig 4: Identifying No. 4 Junction Connector Terminals
      G05639404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 4 Junction Connector Wiring Color Connect to
      E71-1 (CANH) W No. 5 junction connector
      E71-12 (CANL) L
      E71-2 (CANH) SB Network gateway ECU (movement control bus)
      E71-13 (CANL) L
      E71-3 (CANH) P 4WD control ECU
      E71-14 (CANL) L
    5. NO. 5 JUNCTION CONNECTOR
      Fig 5: Identifying No. 5 Junction Connector Terminals
      G05764959Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 5 Junction Connector Wiring Color Connect to
      E68-1 (CANH) W No. 4 junction connector
      E68-12 (CANL) L
      E68-2 (CANH) Y No. 6 junction connector
      E68-13 (CANL) L
      E68-3 (CANH) BR Yaw rate sensor
      E68-14 (CANL) L
      E68-4 (CANH)(1) SB Distance control ECU
      E68-15 (CANL)(1) L
      E68-5 (CANH)(1) G Seat belt control ECU
      E68-16 (CANL)(1) L
      (1) w/ Dynamic Radar Cruise Control System
    6. NO. 6 JUNCTION CONNECTOR
      Fig 6: Identifying No. 6 Junction Connector Terminals
      G05764960Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 6 Junction Connector Wiring Color Connect to
      F21-1 (CANH)(1) V Parking assist ECU
      F21-12 (CANL)(1) L
      F21-2 (CANH) Y No. 7 junction connector
      F21-13 (CANL) L
      F21-3 (CANH) Y No 5 junction connector
      F21-14 (CANL) L
      (1) w/ Wide View Front and Side Monitor System
    7. NO. 7 JUNCTION CONNECTOR
      Fig 7: Identifying No. 7 Junction Connector Terminals
      G05764961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 7 Junction Connector Wiring Color Connect to
      E74-1 (CANH) W No. 1 CAN junction connector
      E74-12 (CANL) L
      E74-2 (CANH) Y No. 6 junction connector
      E74-13 (CANL) L
      E74-3 (CANH) LG Steering control ECU
      E74-14 (CANL) L
      E74-4 (CANH) GR Steering angle sensor
      E74-15 (CANL) L
      E74-5 (CANH) V Master cylinder solenoid (skid control ECU)
      E74-16 (CANL) L
    8. NO. 8 JUNCTION CONNECTOR
      Fig 8: Identifying No. 8 Junction Connector Terminals
      G05639408Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 8 Junction Connector Wiring Color Connect to
      E76-1 (CANH) W No. 2 CAN junction connector
      E76-12 (CANL) R
      E76-2 (CANH) LG Certification ECU (smart key ECU)
      E76-13 (CANL) R
      E76-3 (CANH) P Multiplex tilt and telescopic ECU
      E76-14 (CANL) R
      E76-4 (CANH) V Position control ECU and switch
      E76-15 (CANL) R
      E76-5 (CANH) BR Outer mirror control ECU
      E76-16 (CANL) R
      E76-6 (CANH) GR Main body ECU (cowl side junction block LH)
      E76-17 (CANL) R (MS bus)
    9. NO. 9 JUNCTION CONNECTOR
      Fig 9: Identifying No. 9 Junction Connector Terminals
      G05764963Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 9 Junction Connector Wiring Color Connect to
      E73-1 (CANH) W No. 10 junction connector
      E73-12 (CANL) R
      E73-2 (CANH) Y No 2 CAN junction connector
      E73-13 (CANL) R
      E73-4 (CANH) LG Windshield wiper ECU
      E73-15 (CANL) R
      E73-5 (CANH)(1) G Bus buffer ECU
      E73-16 (CANL)(1) R
      (1) w/ LEXUS Link System
    10. NO. 10 JUNCTION CONNECTOR
      Fig 10: Identifying No. 10 Junction Connector Terminals
      G05639410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      No. 10 Junction Connector Wiring Color Connect to
      E70-1 (CANH) W No. 9 Junction Connector
      E70-12 (CANL) R
      E70-3 (CANH) LG Combination Meter (MS bus)
      E70-14 (CANL) R
    11. NO. 1 CAN JUNCTION CONNECTOR
      Fig 11: Identifying No. 1 CAN Junction Connectors
      G05764965Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      Junction Connector A Side Wiring Color (CANH Side) Wiring Color (CANL Side)
      Body ground (K28) - W-B
      No. 7 junction connector (K29) W L
      Suspension control ECU (K41) V L
    12. NO. 2 CAN JUNCTION CONNECTOR
      Fig 12: Identifying No. 2 CAN Junction Connectors
      G05764966Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      JUNCTION CONNECTOR REFERENCE

      Junction Connector B side Wiring Color (CANH Side) Wiring Color (CANL Side)
      No. 8 junction connector (L29) W R
      No. 9 junction connector (L30) Y R
      Tire pressure warning ECU (L31) G R
      Power back door ECU (L45)(1) V R
      No. 2 main body ECU (L46) LG R
      (1) w/ Power Back Door System
  3. TERMINALS OF CONNECTORS FOR JUNCTION CONNECTOR (CAN JUNCTION CONNECTOR) 
    TERMINAL SYMBOL CHART

    Terminal No. Symbol
    1 CANH
    2 CANL
  4. CHECK DLC3 
    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and the branch wire.
      NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
      Fig 13: Identifying CAN Junction Connector Terminals
      G05764967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value (s) in the table below.
    Fig 14: Identifying DLC3 Connector Terminals
    G05764968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E22-6 (CANH) - E22-14 (CANL) G-B Engine switch off 54 to 69 Ω
    E22-6 (CANH) - E22-4 (CG) G - W-B Engine switch off 200 Ω or higher
    E22-14 (CANL) - E22-4 (CG) B - W-B Engine switch off 200 Ω or higher
    E22-6 (CANH) - E22-16 (BAT) G - O Engine switch off 6 kΩ or higher
    E22-14 (CANL) - E22-16 (BAT) B - O Engine switch off 6 kΩ or higher
  5. CHECK MASTER CYLINDER SOLENOID (SKID CONTROL ECU) 
    Fig 15: Identifying A24 Skid Control ECU Connector
    G05639415Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A24 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    A24-11 (CANH) - A24-25 (CANL) V-L Engine switch off 54 to 69 Ω
    A24-11 (CANH) - A24-1 (GND1) V - W-B Engine switch off 200 Ω or higher
    A24-25 (CANL) - A24-1 (GND1) L - W-B Engine switch off 200 Ω or higher
    A24-11 (CANH) - A24-2 (+BM1) V-B Engine switch off 6 kΩ or higher
    A24-25 (CANL) - A24-2 (+BM1) L-B Engine switch off 6 kΩ or higher
  6. CHECK AIR CONDITIONING AMPLIFIER 
    Fig 16: Identifying E35 & E36 Amplifier Connectors
    G05639416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E35 and E36 amplifier connectors.
    2. Measure the voltage and resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Condition Specified Condition
    E35-3 (CANH) - E35-4 (CANL) G-B Engine switch off 54 to 69 Ω
    E35-3 (CANH) - E36-1 (GND) G - W-B Engine switch off 200 Ω or higher
    E35-4 (CANL) - E36-1 (GND) B - W-B Engine switch off 200 Ω or higher
    E35-3 (CANH) - E36-6 (+B1) G-R Engine switch off 6 kΩ or higher
    E35-4 (CANL) - E36-6 (+B1) B-R Engine switch off 6 kΩ or higher
  7. CHECK ECM 
    Fig 17: Identifying ECM Connector Terminals
    G05764971Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A38 and C53 ECM connectors.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    A38-10 (CANH) - A38-11 (CANL) P-B Engine switch off 108 to 132 Ω
    A38-10 (CANH) - C53-81 (E1) P - W-B Engine switch off 200 Ω or higher
    A38-11 (CANL) - C53-81 (E1) B - W-B Engine switch off 200 Ω or higher
    A38-10 (CANH) - A38-3 (+B) P - B Engine switch off 6 kΩ or higher
    A38-11 (CANL) - A38-3 (+B) B - B Engine switch off 6 kΩ or higher
  8. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) 
    Fig 18: Identifying Main Body ECU (Cowl Side Junction Block LH)
    G05653218Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E3 ECU connector.
    2. Disconnect the 2A and 2D junction connectors.
    3. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E3-5 (CANH) - E3-6 (CANL)(1) SB-B Engine switch off 54 to 69 Ω
    E3-5 (CANH) - 2D-62 (GND2)(1) SB - W-B Engine switch off 200 Ω or higher
    E3-6 (CANL) - 2D-62 (GND2)(1) B - W-B Engine switch off 200 Ω or higher
    E3-5 (CANH) - 2A-1 (ALTB)(1) SB-B Engine switch off 6 kΩ or higher
    E3-6 (CANL) - 2A-1 (ALTB)(1) B-B Engine switch off 6 kΩ or higher
    E3-16 (CANP) - E3-15 (CANN)(2) GR-R Engine switch off 108 to 132 Ω
    E3-16 (CANP) - 2D-62 (GND2)(2) GR - W-B Engine switch off 200 Ω or higher
    E3-15 (CANN) - 2D-62 (GND2)(2) R - W-B Engine switch off 200 Ω or higher
    E3-16 (CANP) - 2A-1 (ALTB)(2) GR-B Engine switch off 6 kΩ or higher
    E3-15 (CANN) - 2A-1 (ALTB)(2) R-B Engine switch off 6 kΩ or higher
    (1) For V bus

    (2) For MS bus
  9. CHECK COMBINATION METER 
    Fig 19: Identifying Combination Meter Connector Terminals
    G05764973Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E77 meter connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E77-36 (CANH) - E77-35 (CANL)(1) V-B Engine switch off 108 to 132 Ω
    E77-36 (CANH) - E77-20 (EP)(1) V - W-B Engine switch off 200 Ω or higher
    E77-35 (CANL) - E77-20 (EP)(1) B - W-B Engine switch off 200 Ω or higher
    E77-36 (CANH) - E77-21 (B)(1) V-R Engine switch off 6 kΩ or higher
    E77-35 (CANL) - E77-21 (B)(1) B-R Engine switch off 6 kΩ or higher
    E77-37 (MPX+) - E77-38 (MPX-)(2) LG-R Engine switch off 108 to 132 Ω
    E77-37 (MPX+) - E77-20 (EP)(2) LG - W-B Engine switch off 200 Ω or higher
    E77-38 (MPX-) - E77-20 (EP)(2) R - W-B Engine switch off 200 Ω or higher
    E77-37 (MPX+) - E77-21 (B)(2) LG-R Engine switch off 6 kΩ or higher
    E77-38 (MPX-) - E77-21 (B)(2) R-R Engine switch off 6 kΩ or higher
    (1) For V bus

    (2) For MS bus
  10. CHECK CENTER AIRBAG SENSOR 
    Fig 20: Identifying Center Airbag Sensor Connector Terminals
    G05639420Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E47 sensor connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E47-13 (CANH) - E47-22 (CANL) GR-B Engine switch off 54 to 69 Ω
    E47-13 (CANH) - E47-25 (E1) GR - W-B Engine switch off 200 Ω or higher
    E47-22 (CANL) - E47-25 (E1) B - W-B Engine switch off 200 Ω or higher
    E47-13 (CANH) - E22-16 (BAT) GR - O Engine switch off 6 kΩ or higher
    E47-22 (CANL) - E22-16 (BAT) B - O Engine switch off 6 kΩ or higher
  11. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY 
    1. For vehicles with the navigation system only.
    Fig 21: Identifying Display And Navigation Module Display Connectors
    G05764975Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F28 display connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    F28-26 (CANH) - F28-25 (CANL) P-B Engine switch off 54 to 69 Ω
    F28-26 (CANH) - F28-10 (GND1) P - W-B Engine switch off 200 Ω or higher
    F28-25 (CANL) - F28-10 (GND1) B - W-B Engine switch off 200 Ω or higher
    F28-26 (CANH) - F28-1 (+B1) P-R Engine switch off 6 kΩ or higher
    F28-25 (CANL) - F28-1 (+B1) B-R Engine switch off 6 kΩ or higher
  12. CHECK MULTI-DISPLAY 

    For vehicles without the navigation system only.

    Fig 22: Identifying Multi-Display Connectors Terminals
    G05764976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F28 multi-display connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    F28-26 (CANH) - F28-25 (CANL) P-B Engine switch off 54 to 69 Ω
    F28-26 (CANH) - F28-10 (GND1) P - W-B Engine switch off 200 Ω or higher
    F28-25 (CANL) - F28-10 (GND1) B - W-B Engine switch off 200 Ω or higher
    F28-26 (CANH) - F28-1 (+B1) P-R Engine switch off 6 kΩ or higher
    F28-25 (CANL) - F28-1 (+B1) B-R Engine switch off 6 kΩ or higher
  13. CHECK STEERING ANGLE SENSOR 
    Fig 23: Identifying Steering Angle Sensor Connector Terminals
    G05639422Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E11 sensor connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E11-10 (CANH) - E11-9 (CANL) GR-L Engine switch off 54 to 69 Ω
    E11-10 (CANH) - E11-2 (ESS) GR - W-B Engine switch off 200 Ω or higher
    E11-9 (CANL) - E11-2 (ESS) L - W-B Engine switch off 200 Ω or higher
    E11-10 (CANH) - E22-16 (BAT) GR - O Engine switch off 6 kΩ or higher
    E11-9 (CANL) - E22-16 (BAT) L - O Engine switch off 6 kΩ or higher
  14. CHECK YAW RATE SENSOR 
    Fig 24: Identifying Yaw Rate Sensor Connector Terminals
    G05639423Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E50 sensor connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E50-3 (CANH) - E50-2 (CANL) BR-L Engine switch off 54 to 69 Ω
    E50-3 (CANH) - E50-1 (GND) BR - W-B Engine switch off 200 Ω or higher
    E50-2 (CANL) - E50-1 (GND) L - W-B Engine switch off 200 Ω or higher
    E50-3 (CANH) - E22-16 (BAT) BR - O Engine switch off 6 kΩ or higher
    E50-2 (CANL) - E22-16 (BAT) L - O Engine switch off 6 kΩ or higher
  15. CHECK SEAT BELT CONTROL ECU 

    For vehicles with the dynamic radar cruise control system only.

    Fig 25: Identifying Seat Belt Control ECU Connector Terminals
    G05639424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E41 and E42 ECU connectors.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E42-1 (CANH) - E42-2 (CANL) G-L Engine switch off 54 to 69 Ω
    E42-1 (CANH) - E41-8 (PGND) G - W-B Engine switch off 200 Ω or higher
    E42-2 (CANL) - E41-8 (PGND) L - W-B Engine switch off 200 Ω or higher
    E42-1 (CANH) - E41-7 (+B) G-R Engine switch off 6 kΩ or higher
    E42-2 (CANL) - E41-7 (+B) L-R Engine switch off 6 kΩ or higher
  16. CHECK OUTER MIRROR CONTROL ECU 
    Fig 26: Identifying Outer Mirror Control ECU Connector Terminals
    G05764980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the I18 and I17 ECU connectors.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    I18-1 (CANH) - I18-21 (CANL) BR-R Engine switch off 54 to 69 Ω
    I18-1 (CANH) - I17-9 (GND) BR - W-B Engine switch off 200 Ω or higher
    I18-21 (CANL) - I17-9 (GND) R - W-B Engine switch off 200 Ω or higher
    I18-1 (CANH) - I17-3 (B) BR-R Engine switch off 6 kΩ or higher
    I18-21 (CANL) - I17-3 (B) R-R Engine switch off 6 kΩ or higher
  17. CHECK MULTIPLEX TILT AND TELESCOPIC ECU 
    Fig 27: Identifying Multiplex Tilt And Telescopic ECU Connector Terminals
    G05639427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E27 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E27-5 (CANP) - E27-14 (CANN) P-R Engine switch off 54 to 69 Ω
    E27-5 (CANP) - E27-11 (GND) P - W-B Engine switch off 200 Ω or higher
    E27-14 (CANN) - E27-11 (GND) R - W-B Engine switch off 200 Ω or higher
    E27-5 (CANP) - E27-2 (+B) P-L Engine switch off 6 kΩ or higher
    E27-14 (CANN) - E27-2 (+B) R-L Engine switch off 6 kΩ or higher
  18. CHECK CERTIFICATION ECU (SMART KEY ECU) 
    Fig 28: Identifying Certification ECU (Smart Key ECU) Connector Terminals
    G05639428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E29 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E29-27 (CANH) - E29-28 (CANL) LG-R Engine switch off 54 to 69 Ω
    E29-27 (CANH) - E29-17 (E) LG - W-B Engine switch off 200 Ω or higher
    E29-28 (CANL) - E29-17 (E) R - W-B Engine switch off 200 Ω or higher
    E29-27 (CANH) - E29-1 (+B) LG-B Engine switch off 6 kΩ or higher
    E29-28 (CANL) - E29-1 (+B) R-B Engine switch off 6 kΩ or higher
  19. CHECK POSITION CONTROL ECU AND SWITCH 
    Fig 29: Identifying Position Control ECU And Switch Connector Terminals
    G05639429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the c14 and c15 ECU connectors.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    c15-5 (MPX1) - c15-1 (MPX2) V-R Engine switch off 54 to 69 Ω
    c15-5 (MPX1) - c14-1 (GND) V - W-B Engine switch off 200 Ω or higher
    C15-1 (MPX2) - c14-1 (GND) R - W-B Engine switch off 200 Ω or higher
    c15-5 (MPX1) - c14-5 (+B) V-L Engine switch off 6 kΩ or higher
    C15-1 (MPX2) - c14-5 (+B) R-L Engine switch off 6 kΩ or higher
  20. CHECK TIRE PRESSURE WARNING ECU 
    Fig 30: Identifying Tire Pressure Warning ECU Connector Terminals
    G05639430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L10 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    L10-6 (CANP) - L10-12 (CANN) G-R Engine switch off 54 to 69 Ω
    L10-6 (CANP) - L10-7 (GND) G - W-B Engine switch off 200 Ω or higher
    L10-12 (CANN) - L10-7 (GND) R - W-B Engine switch off 200 Ω or higher
    L10-6 (CANP) - E22-16 (BAT) G - O Engine switch off 6 kΩ or higher
    L10-12 (CANN) - E22-16 (BAT) R - O Engine switch off 6 kΩ or higher
  21. CHECK 4WD CONTROL ECU 
    Fig 31: Identifying 4WD Control ECU Connector Terminals
    G05639431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A27 and A28 ECU connectors.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    A27-19 (CAN+) - A27-20 (CAN-) P-L Engine switch off 54 to 69 Ω
    A27-19 (CAN+) - A28-4 (GND) P-W Engine switch off 200 Ω or higher
    A27-20 (CAN-) - A28-4 (GND) L-W Engine switch off 200 Ω or higher
    A27-19 (CAN+) - E22-16 (BAT) P - O Engine switch off 6 kΩ or higher
    A27-20 (CAN-) - E22-16 (BAT) L - O Engine switch off 6 kΩ or higher
  22. CHECK NETWORK GATEWAY ECU 
    Fig 32: Identifying Network Gateway ECU Connector Terminals
    G05639432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E31 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E31-16 (CA1H) - E31-15 (CA1L)(1) BR-B Engine switch off 54 to 69 Ω
    E31-16 (CA1H) - E31-4 (GND)(1) BR - W-B Engine switch off 200 Ω or higher
    E31-15 (CA1L) - E31-4 (GND)(1) B - W-B Engine switch off 200 Ω or higher
    E31-16 (CA1H) - E31-2 (BATT)(1) BR-R Engine switch off 6 kΩ or higher
    E31-15 (CA1L) - E31-2 (BATT)(1) B-R Engine switch off 6 kΩ or higher
    E31-13 (CA2H) - E31-12 (CA2L)(2) SB-L Engine switch off 108 to 132 Ω
    E31-13 (CA2H) - E31-4 (GND)(2) SB - W-B Engine switch off 200 Ω or higher
    E31-12 (CA2L) - E31-4 (GND)(2) L - W-B Engine switch off 200 Ω or higher
    E31-13 (CA2H) - E31-2 (BATT)(2) SB - R Engine switch off 6 kΩ or higher
    E31-12 (CA2L) - E31-2 (BATT)(2) L - R Engine switch off 6 kΩ or higher
    (1) For V bus

    (2) For movement control bus
  23. CHECK STEERING CONTROL ECU 
    Fig 33: Identifying Steering Control ECU Connector Terminals
    G05764987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E82 and E84 ECU connectors.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E84-9 (CANH) - E84-20 (CANL) LG-L Engine switch off 200 Ω or higher
    E84-9 (CANH) - E82-7 (PGND) LG - W-B Engine switch off 200 Ω or higher
    E84-20 (CANL) - E82-7 (PGND) L - W-B Engine switch off 200 Ω or higher
    E84-9 (CANH) - E82-10 (+B1) LG-R Engine switch off 6 kΩ or higher
    E84-20 (CANL) - E82-10 (+B1) L-R Engine switch off 6 kΩ or higher
  24. CHECK SUSPENSION CONTROL ECU 
    Fig 34: Identifying Suspension Control ECU Connector Terminals
    G05764988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K30 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    K30-7 (CANH) - K30-8 (CANL) V - L Engine switch off 54 to 69 Ω
    K30-7 (CANH) - K30-1 (GND) V - W-B Engine switch off 200 Ω or higher
    K30-8 (CANL) - K30-1 (GND) L - W-B Engine switch off 200 Ω or higher
    K30-7 (CANH) - K30-3 (BAT2) V-R Engine switch off 6 kΩ or higher
    K30-8 (CANL) - K30-3 (BAT2) L - R Engine switch off 6 kΩ or higher
  25. CHECK WINDSHIELD WIPER ECU 
    Fig 35: Identifying Windshield Wiper ECU Connector Terminals
    G05764989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E90 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E90-6 (CANH) - E90-5 (CANL) LG-R Engine switch off 54 to 69 Ω
    E90-6 (CANH) - E90-10 (E) LG - W-B Engine switch off 200 Ω or higher
    E90-5 (CANL) - E90-10 (E) R - W-B Engine switch off 200 Ω or higher
    E90-6 (CANH) - E22-16 (BAT) LG - O Engine switch off 6 kΩ or higher
    E90-5 (CANL) - E22-16 (BAT) R - O Engine switch off 6 kΩ or higher
  26. CHECK PARKING ASSIST ECU 

    For vehicles with the wide view front and side monitor system only.

    Fig 36: Identifying Parking Assist ECU Connector Terminals
    G05764990Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F36 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    F36-9 (CANH) - F36-10 (CANL) V-L Engine switch off 54 to 69 Ω
    F36-9 (CANH) - F36-4 (GND1) V - W-B Engine switch off 200 Ω or higher
    F36-10 (CANL) - F36-4 (GND1) L - W-B Engine switch off 200 Ω or higher
    F36-9 (CANH) - F36-6 (+B) V-L Engine switch off 6 kΩ or higher
    F36-10 (CANL) - F36-6 (+B) L-L Engine switch off 6 kΩ or higher
  27. CHECK DISTANCE CONTROL ECU 

    For vehicles with the dynamic radar cruise control system only.

    Fig 37: Identifying Distance Control ECU Connector Terminals
    G05764991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E86 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E86-8 (CANH) - E86-9 (CANL) SB - L Engine switch off 54 to 69 Ω
    E86-8 (CANH) - E86-12 (GND) SB - BR Engine switch off 200 Ω or higher
    E86-9 (CANL) - E86-12 (GND) L - BR Engine switch off 200 Ω or higher
    E86-8 (CANH) - E86-1 (B) SB - R Engine switch off 6 kΩ or higher
    E86-9 (CANL) - E86-1 (B) L - R Engine switch off 6 kΩ or higher
  28. CHECK POWER BACK DOOR UNIT (POWER BACK DOOR ECU) 

    For vehicles with the power back door system only.

    Fig 38: Identifying Power Back Door Unit (Power Back Door ECU) Connector Terminals
    G05764992Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L36 unit connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    L36-6 (MPX1) - L36-5 (MPX2) V - R Engine switch off 54 to 69 Ω
    L36-6 (MPX1) - L36-11 (GND) V - W-B Engine switch off 200 Ω or higher
    L36-5 (MPX2) - L36-11 (GND) R - W-B Engine switch off 200 Ω or higher
    L36-6 (MPX1) - L36-10 (ECUB) V-R Engine switch off 6 kΩ or higher
    L36-5 (MPX2) - L36-10 (ECUB) R-R Engine switch off 6 kΩ or higher
  29. CHECK AFS ECU (HEADLIGHT SWIVEL ECU) 
    Fig 39: Identifying AFS ECU (Headlight Swivel ECU) Connector Terminals
    G05764993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E91 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    E91-12 (MPX1) - E91-13 (MPX2) LG - B Engine switch off 54 to 69 Ω
    E91-12 (MPX1) - E91-22 (E1) LG - W-B Engine switch off 200 Ω or higher
    E91-13 (MPX2) - E91-22 (E1) B - W-B Engine switch off 200 Ω or higher
    E91-12 (MPX1) - E22-16 (BAT) LG - O Engine switch off 6 kΩ or higher
    E91-13 (MPX2) - E22-16 (BAT) B - O Engine switch off 6 kΩ or higher
  30. CHECK NO. 2 MAIN BODY ECU 
    Fig 40: Identifying No. 2 Main Body ECU Connector Terminals
    G05764994Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L33 ECU connector.
    2. Measure the resistance according to the value (s) in the table below.
    TERMINAL SPECIFIED CONDITION CHART

    Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
    L33-11 (MPX+) - L33-12 (MPX-) LG - R Engine switch off 54 to 69 Ω
    L33-11 (MPX+) - L33-7 (GND) LG - W-B Engine switch off 200 Ω or higher
    L33-12 (MPX-) - L33-7 (GND) R - W-B Engine switch off 200 Ω or higher
    L33-11 (MPX+) - L33-14 (BECU) LG-R Engine switch off 6 kΩ or higher
    L33-12 (MPX-) - L33-14 (BECU) R-R Engine switch off 6 kΩ or higher
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