POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

    A0055NXE02
    Text in Illustration
    *1 for LHD *2 for RHD

    1. Disconnect the E14*1 or E8*2 switch connector.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E14-12 (GND)*1 - Body ground W-B - Body ground Ground Always Below 1 Ω
      E14-11 (B)*1 - Body ground R - Body ground Battery power supply Always 11 to 14 V
      E8-12 (GND)*2 - Body ground W-B - Body ground Ground Always Below 1 Ω
      E8-11 (B)*2 - Body ground R - Body ground Battery power supply Always 11 to 14 V

      *1: for LHD

      *2: for RHD

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

  2. CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

    A0052HQE02

    1. Disconnect the D79, D80, DB, DE and DG ECU connectors.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D79-4 (BATB) - Body ground BR - Body ground Battery power supply Always 11 to 14 V
      DG-1 (ALTB) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      DB-30 (BECU) - Body ground W - Body ground Power supply Always 11 to 14 V
      DE-17 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D80-4 (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. Reconnect the D79, D80, DB, DE and DG ECU connectors.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition

      DA-21 (DCTY)*1 - Body ground

      DC-6 (DCTY)*2 - Body ground

      W*1 - Body ground

      SB*2 - Body ground

      		 Driver side door courtesy light switch input Driver side door open Below 1 V

      DA-21 (DCTY)*1 - Body ground

      DC-6 (DCTY)*2 - Body ground

      W*1 - Body ground

      SB*2 - Body ground

      		 Driver side door courtesy light switch input Ignition switch off and driver side door courtesy light switch off 11 to 14 V

      DE-20 (PCTY)*1 - Body ground

      DA-24 (PCTY)*2 - Body ground

      Y*1 - Body ground

      W*2 - Body ground

      		 Front passenger side door courtesy light switch input Front passenger side door open Below 1 V

      DE-20 (PCTY)*1 - Body ground

      DA-24 (PCTY)*2 - Body ground

      Y*1 - Body ground

      W*2 - Body ground

      		 Front passenger side door courtesy light switch input Ignition switch off and passenger side door courtesy light switch off 11 to 14 V
      D79-8 (LCTY) - Body ground SB - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      D79-8 (LCTY) - Body ground SB - Body ground Rear door LH courtesy light switch input Ignition switch off and rear LH side door courtesy light switch off 11 to 14 V
      DE-19 (RCTY) - Body ground LG - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V
      DE-19 (RCTY) - Body ground LG - Body ground Rear door RH courtesy light switch input Ignition switch off and rear RH side door courtesy light switch off 11 to 14 V
      DA-7 (BCTY) - Body ground LG - Body ground

      Luggage room compartment door courtesy light switch input*3

      Back door courtesy light switch input*4

      Luggage compartment door open*3

      Back door open*4

      		 Below 1 V
      DA-7 (BCTY) - Body ground LG - Body ground

      Luggage room compartment door courtesy light switch input*3

      Back door courtesy light switch input*4

      Ignition switch off and luggage compartment door closed*3

      Ignition switch off and back door closed*4

      		 11 to 14 V
      DH-8 (ACT+) - Body ground W - Body ground Front door LH door lock motor lock drive output Master switch (door control switch) or driver side door key cylinder neutral position Below 1 V
      DH-8 (ACT+) - Body ground W - Body ground Front door LH door lock motor lock drive output Master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      DH-17 (ACT+) - Body ground R - Body ground Front door RH, rear door RH door lock motor lock drive output Master switch (door control switch) or driver side door key cylinder neutral position Below 1 V
      DH-17 (ACT+) - Body ground R - Body ground Front door RH, rear door RH door lock motor lock drive output Master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      DA-3 (ACT+) - Body ground R - Body ground Rear door LH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder neutral position Below 1 V
      DA-3 (ACT+) - Body ground R - Body ground Rear door LH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      DH-9 (ACT-) - Body ground LG - Body ground Front door LH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder neutral position Below 1 V
      DH-9 (ACT-) - Body ground LG - Body ground Front door LH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      DA-4 (ACT-) - Body ground SB - Body ground Rear door LH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder neutral position Below 1 V
      DA-4 (ACT-) - Body ground SB - Body ground Rear door LH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      DH-18 (ACT-) - Body ground SB - Body ground Front door RH, rear door RH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder neutral position Below 1 V
      DH-18 (ACT-) - Body ground SB - Body ground Front door RH, rear door RH door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      DH-7 (L2) - Body ground SB - Body ground Driver side door lock key switch input Driver side door key cylinder lock Below 1 V
      DH-7 (L2) - Body ground SB - Body ground Driver side door lock key switch input Ignition switch off, all doors closed and driver side door key cylinder neutral position Pulse generation (see waveform 1 or 2)
      D79-1 (TR+) - Body ground R - Body ground

      Luggage compartment lock motor unlock drive output*3

      Back door lock unlock motor drive output*4

      		 Master switch (door control switch) or driver side door key cylinder neutral position Below 1 V
      D79-1 (TR+) - Body ground R - Body ground

      Luggage compartment lock motor unlock drive output*3

      Back door lock unlock motor drive output*4

      		 Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      D79-25 (LSWD) - Body ground GR - Body ground Driver side door lock position switch input Driver side door unlocked Below 1 V
      D79-25 (LSWD) - Body ground GR - Body ground Driver side door lock position switch input Ignition switch off, all doors closed and driver side door locked Pulse generation (see waveform 3 or 4)
      D79-10 (LSWP) - Body ground LG - Body ground Front passenger side door lock position switch input Front passenger side door unlocked Below 1 V
      D79-10 (LSWP) - Body ground LG - Body ground Front passenger side door lock position switch input Ignition switch off, all doors closed and passenger side door locked Pulse generation (see waveform 5 or 6)
      D81-10 (LSR) - Body ground Y - Body ground Rear door lock position switch input Rear door unlocked Below 1 V
      D81-10 (LSR) - Body ground Y - Body ground Rear door lock position switch input Ignition switch off, all doors closed and rear door locked Pulse generation (see waveform 7 or 8)
      D79-12 (BDSU) - Body ground V - Body ground Back door opener switch input Back door opener switch off Below 1 V
      D79-12 (BDSU) - Body ground V - Body ground Back door opener switch input Back door opener switch on Pulse generation (see waveform 9 or 10)
      DH-6 (UL2) - Body ground P - Body ground Driver side door lock key switch input Driver side door key cylinder lock Below 1 V
      DH-6 (UL2) - Body ground P - Body ground Driver side door lock key switch input Ignition switch off, all doors closed and driver side door key cylinder neutral position Pulse generation (see waveform 11 or 12)

      *1: for LHD

      *2: for RHD

      *3: for Sedan

      *4: for Wagon

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

    5. A0058COE01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) DH-7 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door key cylinder neutral position
    6. A0056OLE01

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) DH-7 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door key cylinder neutral position
    7. A0058COE01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference)
      Item Content
      Terminal No. (Symbol) D79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door locked
    8. A0056OLE01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference)
      Item Content
      Terminal No. (Symbol) D79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door locked
    9. A0058COE01

      Using an oscilloscope, check waveform 5.

      Waveform 5 (Reference)
      Item Content
      Terminal No. (Symbol) D79-10 (LSWP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door locked
    10. A0058COE01

      Using an oscilloscope, check waveform 6.

      Waveform 6 (Reference)
      Item Content
      Terminal No. (Symbol) D79-10 (LSWP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door locked
    11. A0058COE01

      Using an oscilloscope, check waveform 7.

      Waveform 7 (Reference)
      Item Content
      Terminal No. (Symbol) D81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and rear door RH locked
    12. A0056OLE01

      Using an oscilloscope, check waveform 8.

      Waveform 8 (Reference)
      Item Content
      Terminal No. (Symbol) D81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and rear door RH locked
    13. A00590RE01

      Using an oscilloscope, check waveform 9.

      Waveform 9 (Reference)
      Item Content
      Terminal No. (Symbol) D79-12 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and back door opener switch on
    14. A0055VTE01

      Using an oscilloscope, check waveform 10.

      Waveform 10 (Reference)
      Item Content
      Terminal No. (Symbol) D79-12 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and back door opener switch on
    15. A00590RE08

      Using an oscilloscope, check waveform 11.

      Waveform 11 (Reference)
      Item Content
      Terminal No. (Symbol) DH-6 (UL2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side key cylinder neutral position
    16. A0055VTE01

      Using an oscilloscope, check waveform 12.

      Waveform 12 (Reference)
      Item Content
      Terminal No. (Symbol) DH-6 (UL2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side key cylinder neutral position

  3. CHECK DOUBLE LOCK DOOR CONTROL RELAY (w/ Double Locking System)

    A0055MYE02

    1. Disconnect the D107 relay connector.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D107-14 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D107-1 (+B) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      D107-7 (CPUB) - Body ground W - Body ground 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 D107 relay connector.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D107-6 (DLPP) - Body ground L - Body ground Front door LH side double locking switch input Double lock not set 10 kΩ or higher
      D107-6 (DLPP) - Body ground L - Body ground Front door LH side double locking switch input Double lock set Below 1 Ω
      D107-5 (DLPD) - Body ground GR - Body ground Front door RH side double locking switch input Double lock not set 10 kΩ or higher
      D107-5 (DLPD) - Body ground GR - Body ground Front door RH side double locking switch input Double lock set Below 1 Ω
      D107-11 (DLPR) - Body ground L - Body ground Rear door RH side double locking switch input Double lock not set 10 kΩ or higher
      D107-11 (DLPR) - Body ground L - Body ground Rear door RH side double locking switch input Double lock set Below 1 Ω
      D107-12 (DLPL) - Body ground P - Body ground Rear door LH side double locking switch input Double lock not set 10 kΩ or higher
      D107-12 (DLPL) - Body ground P - Body ground Rear door LH side double locking switch input Double lock set Below 1 Ω
      D107-4 (ACTR) - Body ground G - Body ground All door double lock motor set off output Double lock set → not set Below 1 V → 11 to 14 V → Below 1 V
      D107-3 (ACTS) - Body ground BR - Body ground All door double lock motor set on output Double lock not set → set Below 1 V → 11 to 14 V → Below 1 V

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