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Terminals Of Ecu

NOTE:
  • Turn the Ignition switch off before measuring the resistances of the CAN main wire and the CAN 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 switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

  1. JUNCTION CONNECTOR 
    1. D-CAN Junction Connector
      Fig 1: D-CAN Junction Connector Terminals
      G05403813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Wiring color 

      TERMINALS SYMBOL AND COLOR REFERENCE

      D-CAN junction connector Terminal No. (Symbol) Color
      Brake Actuator (Skid Control ECU) (CAN-H)*1
      ABS and Traction Actuator (Skid Control ECU) (CAN-H)*2      		 F46-1 (ABS) G
      Brake Actuator (Skid Control ECU) (CAN-L)*1
      ABS and Traction Actuator (Skid Control ECU) (CAN-H)*2      		 F46-12 (ABS) W
      Steering sensor (CAN-H)*2 F46-2 (STR) SB
      Steering sensor (CAN-L)*2 F46-13 (STR) W
      DLC 3 (CAN-H) F46-3 (OBD) V
      DLC 3 (CAN-L) F46-14 (OBD) W
      ECM (CAN-H) F46-4 (EFI) L
      ECM (CAN-L) F46-15 (EFI) W
      Main Body ECU (CAN-H) F46-5 (JB) R
      Main Body ECU (CAN-U) F46-16 (JB) W
      Air conditioning amplifier (CAN-H) F46-6 (A/C) V
      Air conditioning amplifier (CAN-L) F46-17 (A/C) W
      Center airbag sensor assembly (CAN-H) F46-8 (A/B) B
      Center airbag sensor assembly (CAN-L) F46-19 (A/B) W
      CAN Main wire (between D-CAN junction connector and P-CAN junction connector (CAN-H)) F46-11 (TORH) Y
      CAN Main wire (between D-CAN junction connector and P-CAN junction connector (CAN-L)) F46-22 (TORH) W
      HINT:
      *1: w/ABS
      *2: w/ VSC
    2. P-CAN Junction Connector
      Fig 2: P-CAN Junction Connector Terminals
      G05403814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Wiring color 

      TERMINALS SYMBOL AND COLOR REFERENCE

      P-CAN junction connector Terminal No. (Symbol) Color
      Yaw Rate Sensor (CAN-H)*2 F47-2 (YAW) 0
      Yaw Rate Sensor (CAN-L)*2 F47-13 (YAW) W
      Power Steering ECU (CAN-H) F47-4 (EPS) SB
      Power Steering ECU (CAN-L) F47-15(EPS) W
      Combination Meter ECU (CAN-H) F47-7 (MET) G
      Combination Meter ECU (CAN-L) F47-18 (MET) W
      CAN Main wire (between D-CAN junction connector and P-CAN junction connector (CAN-H)) F47-11 (TOLH) Y
      CAN Main wire (between D-CAN junction connector and P-CAN junction connector (CAN-L)) F47-22 (TOLH) W
      HINT:
      *2: w/ VSC
    3. Wiring diagram for identifying CAN Junction Connectors
      Fig 3: Wiring Diagram For Identifying CAN Junction Connectors
      G05403815Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. DLC3 
    1. Turn the Ignition switch off.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 4: Identifying DLC3 Connector Terminals
      G05403816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F16-6 (CANH) - F16-14 (CANL) V-W Ignition switch off* 54 to 69 Ω
      F16-6 (CANH) - F16-4 (CG) V-W-B Ignition switch off* 200 Ω or higher
      F16-14 (CANL) - F16-4 (CG) W-W-B Ignition switch off* 200 Ω or higher
      F16-6 (CANH) - F16-16 (BAT) V-SB Ignition switch off* 6 kΩ or higher
      F16-14 (CANL) - F16-16 (BAT) W-SB Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  3. BRAKE ACTUATOR (SKID CONTROL ECU) 

    HINT:

    For vehicles with ABS only.

    1. Turn the Ignition switch off.
    2. Disconnect the A14 brake actuator (skid control ECU) connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 5: Identifying Brake Actuator (Skid Control ECU) Connector Terminals
      G05403817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A14-25 (CANH) - A14-14 (CANL) G-W Ignition switch off* 54 to 69 Ω
      A14-25 (CANH) - A14-1 (GND1) G-W-B Ignition switch off* 200 Ω or higher
      A14-14 (CANL) - A14-1 (GND1) W-W-B Ignition switch off* 200 Ω or higher
      A14-25 (CANH) - A14-12 (+BS) G-W Ignition switch off* 6 kΩ or higher
      A14-14 (CANL) - A14-12 (+BS) W-W Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  4. ABS AND TRACTION ACTUATOR (SKID CONTROL ECU) 

    HINT:

    For vehicles with VSC only.

    1. Turn the Ignition switch off.
    2. Disconnect the A15 ABS and traction actuator (skid control ECU) connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 6: Identifying ABS And Traction Actuator (Skid Control ECU) Connector Terminals
      G05403818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A15-25 (CANH) - A15-14 (CANL) G-W Ignition switch off* 54 to 69 Ω
      A15-25 (CANH) - A15-1 (GND1) G-W-B Ignition switch off* 200 Ω or higher
      A15-14 (CANL) - A15-1 (GND1) W-W-B Ignition switch off* 200 Ω or higher
      A15-25 (CANH) - A15-12 (+BS) G-W Ignition switch off* 6 kΩ or higher
      A15-14 (CANL) - A15-12 (+BS) W-W Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  5. STEERING SENSOR 

    HINT:

    For vehicles with VSC only.

    1. Turn the Ignition switch off.
    2. Disconnect the F33 steering sensor connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 7: Identifying Steering Sensor Connector Terminals
      G05403819Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F33-3 (CANH) - F33-2 (CANL) SB-W Ignition switch off* 54 to 69 Ω
      F33-3 (CANH) - F33-1 (ESS) SB - W-B Ignition switch off* 200 Ω or higher
      F33-2 (CANL) - F33-1 (ESS) W-W-B Ignition switch off* 200 Ω or higher
      F33-3 (CANH) - F33-5 (BAT) SB-LG Ignition switch off* 6 kΩ or higher
      F33-2 (CANL) - F33-5 (BAT) W-LG Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  6. YAW RATE SENSOR 

    HINT:

    For vehicles with VSC only.

    1. Turn the Ignition switch off.
    2. Disconnect the F34 yaw rate sensor connector.
      Fig 8: Identifying Yaw Rate Sensor And DLC3 Connector Terminals
      G05403820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F34-3 (CANH) - F34-2 (CANL) O-W Ignition switch off* 54 to 69 Ω
      F34-3 (CANH) - F34-1 (GND) O-W-B Ignition switch off* 200 Ω or higher
      F34-2 (CANL) - F34-1 (GND) W-W-B Ignition switch off* 200 Ω or higher
      F34-3 (CANH) - F16-16 (BAT) O-SB Ignition switch off* 6 kΩ or higher
      F34-2 (CANL) - F16-16 (BAT) W-SB Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  7. AIR CONDITIONING AMPLIFIER 
    1. Turn the Ignition switch off.
    2. Disconnect the G7 air conditioning amplifier connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 9: Identifying Air Conditioning Amplifier And DLC3 Connector Terminals
      G05403821Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      G7-2 (TX+) - G7-3 (TX-) V-W Ignition switch off* 54 to 69 Ω
      G7-2 (TX+) - G7-12 (GND) V-W-B Ignition switch off* 200 Ω or higher
      G7-3 (TX-) - G7-12 (GND) W-W-B Ignition switch off* 200 Ω or higher
      G7-2 (TX+) - F16-16 (BAT) V-SB Ignition switch off* 6 kΩ or higher
      G7-3 (TX-) - F16-16 (BAT) W-SB Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  8. ECM 
    1. Turn the Ignition switch off.
    2. Disconnect the A21 and C19 ECM connectors.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 10: Identifying ECM Connector Terminals
      G05403822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      A21-41 (CANH) - A21-49 (CANL) L-W Ignition switch off* 108 to 132 Ω
      A21-41 (CANH) - C19-104 (E1) L-W Ignition switch off* 200 Ω or higher
      A21-49 (CANL) - C19-104 (E1) W-W Ignition switch off* 200 Ω or higher
      A21-41 (CANH) - A21-20 (BATT) L-Y Ignition switch off* 6 kΩ or higher
      A21-49 (CANL) - A21-20 (BATT) W-Y Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  9. CENTER AIRBAG SENSOR ASSEMBLY 
    1. Turn the Ignition switch off.
    2. Disconnect the F18 center airbag sensor assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 11: Identifying Center Airbag Sensor And DLC3 Connector Terminals
      G05403823Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F18-13 (CANH) - F18-22 (CANL) B-W Ignition switch off* 54 to 69 Ω
      F18-13 (CANH) - F18-25 (E1) B-W-B Ignition switch off 200 Ω or higher
      F18-22 (CANL) - F18-25 (E1) W-W-B Ignition switch off* 200 Ω or higher
      F18-13 (CANH) - F16-16 (BAT) B-SB Ignition switch off* 6 kΩ or higher
      F18-22 (CANL) - F16-16 (BAT) W-SB Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  10. POWER STEERING ECU 
    1. Turn the Ignition switch off.
    2. Disconnect the A19 and F30 power steering ECU connectors.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 12: Identifying Power Steering ECU Connector Terminals
      G05403824Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F30-1 (CANH) - F30-7 (CANL) SB-W Ignition switch off* 108 to 132 Ω
      F30-1 (CANH) - A19-2 (PGND) SB - W-B Ignition switch off* 200 Ω or higher
      F30-7 (CANL) - A19-2 (PGND) W-W-B Ignition switch off* 200 Ω or higher
      F30-1 (CANH)-A19-1 (PIG) SB-W Ignition switch off* 6 kΩ or higher
      F30-7 (CANL) - A19-1 (PIG) W-W Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  11. COMBINATION METER ECU 
    1. Turn the Ignition switch off.
    2. Disconnect the F1 and F2 combination meter assembly connectors.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 13: Identifying Combination Meter Connector Terminals
      G05403825Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F2-15 (CANH) - F2-16 (CANL) G-W Ignition switch off* 54 to 69 Ω
      F2-15 (CANH) - F1-13 (ET) G-BR Ignition switch off* 200 Ω or higher
      F2-16 (CANL) - F1-13 (ET) W-BR Ignition switch off* 200 Ω or higher
      F2-15 (CANH) - F1-2 (ECUB) G-L Ignition switch off* 6 kΩ or higher
      F2-16 (CANL) - F1-2 (ECUB) W-L Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
  12. MAIN BODY ECU 
    Fig 14: Identifying Main Body ECU Connector Terminals (1 Of 2)
    G05403826Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 15: Identifying Main Body ECU Connector Terminals (2 Of 2)
    G05403827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the Ignition switch off.
    2. Disconnect the F38, 4B and 4E connectors.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Terminal No. (Symbol) Wiring Color Switch Condition Specified Condition
      F38-23 (CANH) - F38-22 (CANL) R-W Ignition switch off* 54 to 69 Ω
      F38-23 (CANH) - 4E-17 (GND1) R-W-B Ignition switch off* 200 Ω or higher
      F38-22 (CANL) - 4E-17 (GND1) W-W-B Ignition switch off* 200 Ω or higher
      F38-23 (CANH) - 4B-30 (ECUB) R-L Ignition switch off* 6 kΩ or higher
      F38-22 (CANL) - 4B-30 (ECUB) W-L Ignition switch off* 6 kΩ or higher
      HINT:
      *: 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.
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