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Terminals Of Ecu

  1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) 
    Fig 1: Identifying Main Body ECU Connector Terminal Identification (Driver Side Junction Block)
    GTY117441Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the DA, DD, DF, L11, L12 and L13 ECU connectors.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L11-1 (GND3) - DA-41 (GND1) W-B - W-B Ground Always Below 1 Ω
      DA-40 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DA-40 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DF-1 (ALTB) - Body ground B - Body ground IG power supply Always 11 to 14 V
      L12-1 (AM2) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      L13-6 (AM1) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      L13-24 (DCTY) - Body ground W - Body ground Driver side door courtesy light switch input Driver side door is open Below 1 Ω
      Driver side door is closed 10 kΩ or higher
      L12-21 (PCTY) - Body ground L - Body ground Front passenger side door courtesy light switch input Front passenger side door is open Below 1 Ω
      Front passenger side door is closed 10 kΩ or higher
      L12-7 (RCTY) - Body ground R - Body ground Rear RH side door courtesy light switch input Rear RH side door is open Below 1 Ω
      Rear RH side door is closed 10 kΩ or higher
      DD-12 (LCTY) - Body ground L - Body ground Rear LH side door courtesy light switch input Rear LH side door is open Below 1 Ω
      Rear LH side door is closed 10 kΩ or higher

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

  2. CHECK MASTER SWITCH ASSEMBLY 
    Fig 2: Identifying Master Switch Assembly Connector Terminal Identification
    GTY117006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N13 switch connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N13-12 (GND) - Body ground R - Body ground Ground Always Below 1 Ω
      N13-11 (B) - N13-12 (GND) B - R Battery power supply Always 11 to 14 V

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

  3. CHECK FRONT DOOR ECU LH 
    Fig 3: Identifying Front Door ECU LH Connector Terminal Identification
    GTY127387Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N10-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      N10-6 (BDR) - N10-1 (GND) BE - W-B Battery power supply Always 11 to 14 V
      N10-11 (CPUB) - N10-1 (GND) B - W-B Battery power supply Always 11 to 14 V
      N10-16 (BDG1) - N10-1 (GND) R - W-B Battery power supply Always 11 to 14 V

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

    3. Reconnect the N10 ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N9-2 (A+) - N10-1 (GND) R - W-B Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      N9-1 (A-) - N10-1 (GND) B - W-B Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      N9-22 (KUL) - N10-1 (GND) GR - W-B Driver side door lock key switch input Driver side door key cylinder UNLOCK Below 1 V
      Power switch OFF, all doors closed and driver side door key cylinder neutral position Pulse generation
      (see waveform 1 or 2)
      N9-23 (KL) - N10-1 (GND) P - W-B Driver side door lock key switch input Driver side door key cylinder LOCK Below 1 V
      Power switch OFF, all doors closed and driver side door key cylinder neutral position Pulse generation
      (see waveform 1 or 2)
      N9-25 (LSW) - N9-13 (LSWE) R - B Driver side door lock position switch input Driver side door is UNLOCK Below 1 V
      Power switch OFF, all doors closed and driver side door is LOCK Pulse generation
      (see waveform 3 or 4)

      If the result is not as specified, the ECU may have a malfunction.

    5. Using an oscilloscope, check waveform 1.
      Fig 4: Identifying Waveform 1
      GTY122500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE):

      Item Content
      Terminal No. (Symbols) N9-22 (KUL) - N10-1 (GND)
      N9-23 (KL) - N10-1 (GND)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and driver side door key cylinder neutral position
    6. Using an oscilloscope, check waveform 2.
      Fig 5: Identifying Waveform 2
      GTY135316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE):

      Item Content
      Terminal No. (Symbols) N9-22 (KUL) - N10-1 (GND)
      N9-23 (KL) - N10-1 (GND)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and driver side door key cylinder neutral position
    7. Using an oscilloscope, check waveform 3.
      Fig 6: Identifying Waveform 3
      GTY122500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 3 (REFERENCE):

      Item Content
      Terminal No. (Symbols) N9-25 (LSW) - N9-13 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and driver side door is LOCK
    8. Using an oscilloscope, check waveform 4.
      Fig 7: Identifying Waveform 4
      GTY135316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 4 (REFERENCE):

      Item Content
      Terminal No. (Symbols) N9-25 (LSW) - N9-13 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and driver side door is LOCK
  4. CHECK FRONT DOOR ECU RH 
    Fig 8: Identifying Front Door ECU RH Connector Terminal Identification
    GTY142168Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N1 ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N1-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      N1-6 (BDR) - N1-1 (GND) BE - W-B Battery power supply Always 11 to 14 V
      N1-11 (CPUB) - N1-1 (GND) R - W-B Battery power supply Always 11 to 14 V
      N1-16 (BDG1) - N1-1 (GND) R - W-B Battery power supply Always 11 to 14 V

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

    3. Reconnect the N1 ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N2-2 (A+) - N1-1 (GND) R - W-B Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      N2-1 (A-) - N1-1 (GND) B - W-B Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      P4-11 (PML) - P4-20 (DLE) B - W Door control switch (front passenger side door control switch) input Door control switch (front passenger side door control switch) LOCK Below 1 V
      Power switch OFF, all doors closed and door control switch (front passenger side door control switch) neutral position Pulse generation
      (see waveform 1 or 2)
      P4-12 (PMUL) - P4-20 (DLE) R - W Door control switch (front passenger side door control switch) input Door control switch (front passenger side door control switch) UNLOCK Below 1 V
      Power switch OFF, all doors closed and door control switch (front passenger side door control switch) neutral position Pulse generation
      (see waveform 1 or 2)
      N2-25 (LSW) - N2-13 (LSWE) R - B Front passenger side door lock position switch input Front passenger side door is UNLOCK Below 1 V
      Power switch OFF, all doors closed and front passenger side door is LOCK Pulse generation
      (see waveform 3 or 4)

      If the result is not as specified, the ECU may have a malfunction.

    5. Using an oscilloscope, check waveform 1.
      Fig 9: Identifying Waveform 1
      GTY122500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE):

      Item Content
      Terminal No. (Symbols) P4-11 (PML) - P4-20 (DLE)
      P4-12 (PMUL) - P4-20 (DLE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and door control switch (front passenger side door control switch) neutral position
    6. Using an oscilloscope, check waveform 2.
      Fig 10: Identifying Waveform 2
      GTY135316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE):

      Item Content
      Terminal No. (Symbols) P4-11 (PML) - P4-20 (DLE)
      P4-12 (PMUL) - P4-20 (DLE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and door control switch (front passenger side door control switch) neutral position
    7. Using an oscilloscope, check waveform 3.
      Fig 11: Identifying Waveform 3
      GTY122500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 3 (REFERENCE):

      Item Content
      Terminal No. (Symbols) N2-25 (LSW) - N2-13 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and front passenger side door is LOCK
    8. Using an oscilloscope, check waveform 4.
      Fig 12: Identifying Waveform 4
      GTY135316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 4 (REFERENCE):

      Item Content
      Terminal No. (Symbols) N2-25 (LSW) - N2-13 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and front passenger side door is LOCK
  5. CHECK REAR DOOR ECU LH 
    Fig 13: Identifying Rear Door ECU LH Connector Terminal Identification
    GTY132493Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O14 ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O14-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      O14-6 (BDR) - O14-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      O14-11 (CPUB) - O14-1 (GND) R - W-B Battery power supply Always 11 to 14 V

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

    3. Reconnect the O14 ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O13-2 (A+) - O14-1 (GND) R - W-B Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      O13-1 (A-) - O14-1 (GND) B - W-B Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      O13-14 (LSW) - O13-23 (LSWE) R - B Rear LH side door lock position switch input Rear LH side door is UNLOCK Below 1 V
      Power switch OFF, all doors closed and rear LH side door is LOCK Pulse generation
      (see waveform 1 or 2)

      If the result is not as specified, the ECU may have a malfunction.

    5. Using an oscilloscope, check waveform 1.
      Fig 14: Identifying Waveform 1
      GTY122500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE):

      Item Content
      Terminal No. (Symbols) O13-14 (LSW) - O13-23 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and rear LH side door is LOCK
    6. Using an oscilloscope, check waveform 2.
      Fig 15: Identifying Waveform 2
      GTY135316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE):

      Item Content
      Terminal No. (Symbols) O13-14 (LSW) - O13-23 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and rear LH side door is LOCK
  6. CHECK REAR DOOR ECU RH 
    Fig 16: Identifying Rear Door ECU RH Connector Terminal Identification
    GTY117397Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O3 ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O3-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      O3-6 (BDR) - O3-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      O3-11 (CPUB) - O3-1 (GND) R - W-B Battery power supply Always 11 to 14 V

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

    3. Reconnect the O3 ECU connector.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O4-2 (A+) - O3-1 (GND) R - W-B Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      O4-1 (A-) - O3-1 (GND) B - W-B Door lock motor UNLOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder UNLOCK 11 to 14 V
      Door lock motor LOCK drive output Door control switch (master switch or front passenger side door control switch) or driver side door key cylinder LOCK Below 1 V
      O4-14 (LSW) - O4-23 (LSWE) R - B Rear RH side door lock position switch input Rear RH side door is UNLOCK Below 1 V
      Rear RH side door lock position switch input Power switch OFF, all doors closed and rear RH side door is LOCK Pulse generation
      (see waveform 1 or 2)

      If the result is not as specified, the ECU may have a malfunction.

    5. Using an oscilloscope, check waveform 1.
      Fig 17: Identifying Waveform 1
      GTY122500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE):

      Item Content
      Terminal No. (Symbols) O4-14 (LSW) - O4-23 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and rear RH side door is LOCK
    6. Using an oscilloscope, check waveform 2.
      Fig 18: Identifying Waveform 2
      GTY135316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE):

      Item Content
      Terminal No. (Symbols) O4-14 (LSW) - O4-23 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch OFF, all doors closed and rear RH side door is LOCK
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