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Terminals Of Ecu

  1. MULTIPLEX NETWORK GATEWAY ECU 
    1. Disconnect the G4 ECU connector.
      Fig 1: Identifying G4 ECU Connector Terminals
      G05143241Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      G4-1 (IG) - Body ground B-R - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V
      G4-2 (ACC) - Body ground P - Body ground Power source (ACC) Ignition switch: ACC 11 to 14 V
      G4-10 (BATT) - Body ground W-L - Body ground Power supply (Battery) Always 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      G4-3 (MPD1) - Body ground R-G - Body ground MPX line Always 10 kΩ or higher
      G4-12 (MPD2) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      G4-24 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  2. MULTIPLEX NETWORK BODY ECU 
    1. Disconnect the B7 ECU, 1A, 1C, 1E, 1K and 1L junction block connectors.
      Fig 2: Identifying Multiplex Network Body ECU Junction Block Connector Terminals
      G05143242Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      1A-1 - Body ground W - Body ground Power supply (Battery) Always 11 to 14 V
      1C-30 (ALTB) - Body ground B - Body ground Power supply (Battery) Always 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      1E-7 (MPX1) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      B7-21 (MPX2) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      1L-16 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      1K-17 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  3. AIRBAG SENSOR ASSEMBLY 
    1. Disconnect the A21 ECU connector.
      Fig 3: Identifying A21 ECU Connector Terminals
      G05143243Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A21-5 (IG2) - Body ground B-O - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A21-24 (MPX1) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      A21-22 (MPX2) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      A21-27 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      A21-28 (E2) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  4. SEAT POSITION CONTROL ECU (with Driving Position Memory) 
    1. Disconnect the P58 and P59 ECU connectors.
      Fig 4: Identifying P58 And P59 ECU Connector Terminals
      G05143244Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P59-4 (IG) - Body ground Y - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V
      P59-8 (SYSB) - Body ground W-L - Body ground Power supply (Battery) Always 11 to 14 V
      P58-5 (+B) - Body ground V - Body ground Power supply (Battery) Always 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P59-1 (MPX1) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      P58-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  5. AIR CONDITIONING AMPLIFIER 
    1. Disconnect the A9 ECU connector.
      Fig 5: Identifying A9 ECU Connector Terminals
      G05143245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A9-20 (B) - Body ground (*1) W-L - Body ground Power supply (Battery) Always 11 to 14 V
      A9-17 (+B) - Body ground (*2) W-L - Body ground Power supply (Battery) Always 11 to 14 V
      A9-19 (ACC) - Body ground (*1) P - Body ground Power supply (ACC) Ignition switch: ACC 11 to 14 V
      A9-40 (ACC) - Body ground (*2) P - Body ground Power supply (ACC) Ignition switch: ACC 11 to 14 V
      A9-18 (IG) - Body ground (*1) R-Y - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V
      A9-38 (IG+) - Body ground (*2) R-Y - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A9-2 (MPX+) - Body ground (*1) V - Body ground MPX line Always 10 kΩ or higher
      A9-J (MPX+) - Body ground (*2) V - Body ground MPX line Always 10 kΩ or higher
      A9-3 (MPX-) - Body ground (*1) R-L - Body ground MPX line Always 10 kΩ or higher
      A9-5 (MPX-) - Body ground (*2) R-L - Body ground MPX line Always 10 kΩ or higher
      A9-1 (GND) - Body ground (*1) W-B - Body ground Ground Always Below 1 Ω
      A9-6 (GND) - Body ground (*2) W-B - Body ground Ground Always Below 1 Ω
      HINT:
      *1: for Automatic A/C
      *2: for Manual A/C

      If the result is not as specified, there may be a malfunction on the wire harness side.

  6. COMBINATION METER 
    1. Disconnect the C10 ECU connector.
      Fig 6: Identifying C10 ECU Connector Terminals
      G05143246Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      C10-12 (+B) - Body ground W-L - Body ground Power supply (Battery) Always 11 to 14 V
      C10-32 (IG+) - Body ground B-R - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      C10-29 (MPX1) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      C10-28 (MPX2) - Body ground V - Body ground MPX line Always 10 kΩ or higher
      C10-30 (ES) - Body ground BR - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  7. POWER SLIDE DOOR ECU RH 
    1. Disconnect the P27 and P28 ECU connectors.
      Fig 7: Identifying P27 And P28 ECU Connector Terminals
      G05143247Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P28-2 (B) - Body ground B - Body ground Power supply (Battery) Always 11 to 14 V
      P27-10 (ECUB) - Body ground W - Body ground Power supply (Battery) Always 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P27-22 (MPX1) - Body ground R - Body ground MPX line Always 10 kΩ or higher
      P28-8 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  8. POWER SLIDE DOOR ECU LH 
    1. Disconnect the P25 and P26 ECU connectors.
      Fig 8: Identifying P25 And P26 ECU Connector Terminals
      G05143248Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P26-2 (B) - Body ground B-W - Body ground Power supply (Battery) Always 11 to 14 V
      P25-10 (ECUB) - Body ground W - Body ground Power supply (Battery) Always 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P25-22 (MPX1) - Body ground R - Body ground MPX line Always 10 kΩ or higher
      P26-8 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  9. POWER BACK DOOR ECU 
    1. Disconnect the P13 and P14 ECU connectors.
      Fig 9: Identifying P13 And P14 ECU Connector Terminals
      G05143249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P14-2 (B) - Body ground B-R - Body ground Power supply (Battery) Always 11 to 14 V
      P13-10 (ECUB) - Body ground W-L - Body ground Power supply (Battery) Always 11 to 14 V
      P13-9 (IG) - Body ground B-R - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P13-22 (MPX1) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      P14-8 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  10. OUTER MIRROR CONTROL ECU RH (with Driving Position Memory) 
    1. Disconnect the O11 ECU connector.
      Fig 10: Identifying O11 ECU Connector Terminals
      G05143250Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O11-3 (SIG) - Body ground B-R - Body ground Power supply (IG) ignition switch: ON 11 to 14 V
      O11-4 (CPUB)- Body ground W-L - Body ground Power supply (Battery) Always 11 to 14 V
      O11-6 (BDR)- Body ground R-L - Body ground Power supply (Battery) Always 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O11-8 (MPX1) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      O11-1 (GND)-Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  11. OUTER MIRROR CONTROL ECU LH (with Driving Position Memory) 
    1. Disconnect the O9 ECU connector.
      Fig 11: Identifying O9 ECU Connector Terminals
      G05143251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O9-3 (SIG) - Body ground B-R - Body ground Power supply (IG) Ignition switch: ON 11 to 14 V
      O9-4 (CPUB) - Body ground W-L - Body ground Power supply (Battery) Always 11 to 14 V
      O9-6 (BDR) - Body ground R-L - Body ground Power supply (Battery) Always 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Measure the resistance between the specified terminals on the wire harness side connector.
      TERMINAL REFERENCE DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O9-8 (MPX1) - Body ground R-L - Body ground MPX line Always 10 kΩ or higher
      O9-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

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