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Terminals Of Ecu

  1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) 
    Fig 1: Identifying Main Body ECU (Driver Side Junction Block) Connectors Terminal
    G04943821Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the DA, DD, DF, L11, L12, L13 and A68 ECU connectors.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

      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 N13 Switch Connector Terminal
    G04951488Courtesy 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.
      MASTER SWITCH ASSEMBLY

      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 N10 ECU Connector Terminal
    G04951489Courtesy 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.
      FRONT DOOR ECU LH VOLTAGE AND RESISTANCE

      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) O-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.
      FRONT DOOR ECU LH VOLTAGE

      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
      Engine switch off, all doors closed and driver side door key cylinder neutral position Pulse generation (see WAVEFORM 1  or WAVEFORM 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
      Engine switch off, all doors closed and driver side door key cylinder neutral position Pulse generation (see WAVEFORM 1  or WAVEFORM 2 )
      N9-25(LSW)-N9-13 (LSWE) R-B Driver side door lock position switch input Driver side door is UNLOCK Below 1 V
      Engine switch off, all doors closed and driver side door is LOCK Pulse generation (see WAVEFORM 3  or WAVEFORM 4 )

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

    5. Using an oscilloscope, check the waveform 1.
      Fig 4: Waveform Graph 1
      G04951490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 1 (Reference): 

      WAVEFORM REFERENCE 1

      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 Engine switch off, all doors closed and driver side door key cylinder neutral position
    6. Using an oscilloscope, check the waveform 2.
      Fig 5: Waveform Graph 2
      G04951491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 2 (Reference): 

      WAVEFORM REFERENCE 2

      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 Engine switch off, all doors closed and driver side door key cylinder neutral position
    7. Using an oscilloscope, check the waveform 3.
      Fig 6: Waveform Graph 3
      G04951490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 3 (Reference): 

      WAVEFORM REFERENCE 3

      Item Content
      Terminal No. (Symbols) N9-25 (LSW) - N9-13 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door is LOCK
    8. Using an oscilloscope, check the waveform 4.
      Fig 7: Waveform Graph 4
      G04951491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 4 (Reference): 

      WAVEFORM REFERENCE 4

      Item Content
      Terminal No. (Symbols) N9-25 (LSW) - N9-13 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door is LOCK
  4. CHECK FRONT DOOR ECU RH 
    Fig 8: Identifying N1 ECU Connector
    G04951494Courtesy 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.
      FRONT DOOR ECU RH VOLTAGE AND RESISTANCE

      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) O-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.
      FRONT DOOR ECU RH VOLTAGE

      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
      Engine switch off, all doors closed and door control switch (front passenger side door control switch) neutral position Pulse generation (see WAVEFORM 1  or WAVEFORM 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
      Engine switch off, all doors closed and door control switch (front passenger side door control switch) neutral position Pulse generation (see WAVEFORM 1  or WAVEFORM 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
      Engine switch off, all doors closed and front passenger side door is LOCK Pulse generation (see WAVEFORM 3  or WAVEFORM 4 )

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

    5. Using an oscilloscope, check the waveform 1.
      Fig 9: Waveform Graph 1
      G04951490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 1 (Reference): 

      WAVEFORM REFERENCE 1

      Item Content
      Terminal No. (Symbols) N2-22 (PMUL) - N10-1 (GND)
      N2-23(PML)-N10-1 (GND)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and door control switch (front passenger side door control switch) neutral position
    6. Using an oscilloscope, check the waveform 2.
      Fig 10: Waveform Graph 2
      G04951491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 2 (Reference): 

      WAVEFORM REFERENCE 2

      Item Content
      Terminal No. (Symbols) P4-22 (PMUL) - N10-1 (GND)
      P4-23(PML)-N10-1 (GND)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and door control switch (front passenger side door control switch) neutral position
    7. Using an oscilloscope, check the waveform 3.
      Fig 11: Waveform Graph 3
      G04951490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 3 (Reference): 

      WAVEFORM REFERENCE 3

      Item Content
      Terminal No. (Symbols) N2-25 (LSW) - N2-13 (LSWE)
      Tool Setting 5 V/DIV, 20 ms/DIV.
      Condition Engine switch off, all doors closed and front passenger side door is LOCK
    8. Using an oscilloscope, check the waveform 4.
      Fig 12: Waveform Graph 4
      G04951491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 4 (Reference): 

      WAVEFORM REFERENCE 4

      Item Content
      Terminal No. (Symbols) N2-25 (LSW) - N2-13 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine 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
    G04951499Courtesy 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.
      REAR DOOR ECU LH VOLTAGE AND RESISTANCE

      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) O-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.
      REAR DOOR ECU LH VOLTAGE

      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
      Engine switch off, all doors closed and rear LH side door is LOCK Pulse generation (see WAVEFORM 1  or WAVEFORM 2 )

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

    5. Using an oscilloscope, check the waveform 1.
      Fig 14: Waveform Graph 1
      G04951490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 1 (Reference): 

      WAVEFORM REFERENCE 1

      Item Content
      Terminal No. (Symbols) O13-14 (LSW) - O13-23 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear LH side door is LOCK
    6. Using an oscilloscope, check the waveform 2.
      Fig 15: Waveform Graph 2
      G04951491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 2 (Reference): 

      WAVEFORM REFERENCE 2

      Item Content
      Terminal No. (Symbols) O13-14 (LSW) - O13-23 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear LH side door is LOCK
  6. CHECK REAR DOOR ECU RH 
    Fig 16: Identifying O3 ECU Connector
    G04951502Courtesy 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.
      REAR DOOR ECU RH VOLTAGE AND RESISTANCE

      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.
      REAR DOOR ECU RH VOLTAGE

      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 Engine switch off, all doors closed and rear RH side door is LOCK Pulse generation (see WAVEFORM 1  or WAVEFORM 2 )

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

    5. Using an oscilloscope, check the waveform 1.
      Fig 17: Waveform Graph 1
      G04951490Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 1 (Reference): 

      WAVEFORM REFERENCE 1

      Item Content
      Terminal No. (Symbols) O4-14 (LSW) - O4-23 (LSWE)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear RH side door is LOCK
    6. Using an oscilloscope, check the waveform 2.
      Fig 18: Waveform Graph 2
      G04951491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Waveform 2 (Reference): 

      WAVEFORM REFERENCE 2

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