POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    A004TMTE02

    1. Disconnect the D80, DE, DG and DH main body ECU (instrument panel junction block assembly) 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
      D80-4 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DH-12 (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
      DE-28 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DG-1 (ALTB) - Body ground W - Body ground Battery power supply Always 11 to 14 V

    3. Reconnect the D80, DE, DG and DH main body ECU (instrument panel junction block assembly) connectors.

    4. Measure the voltage and check for waveform 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 assembly input Driver side door open Below 1 V
      Ignition switch off and driver side door courtesy light switch assembly 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 assembly input Front passenger side door open Below 1 V
      Ignition switch off and passenger side door courtesy light switch assembly off 11 to 14 V
      D79-8 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch assembly LH input Rear door LH open Below 1 V
      Ignition switch off and rear door courtesy light switch assembly LH off 11 to 14 V
      DE-19 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch assembly RH input Rear door RH open Below 1 V
      Ignition switch off and rear door courtesy light switch assembly RH off 11 to 14 V

      DA-7 (LGCY)*3 - Body ground

      DA-7 (BCTY)*4 - 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

      • 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 motor lock drive output Power window regulator master switch assembly (door control switch) or driver side door key cylinder neutral position Below 1 V
      Power window regulator master switch assembly (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 motor lock drive output Power window regulator master switch assembly (door control switch) or driver side door key cylinder neutral position Below 1 V
      Power window regulator master switch assembly (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 motor unlock drive output Power window regulator master switch assembly (door control switch) or driver side door key cylinder neutral position Below 1 V
      Power window regulator master switch assembly (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 motor unlock drive output Power window regulator master switch assembly (door control switch) or driver side door key cylinder neutral position Below 1 V
      Power window regulator master switch assembly (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 motor unlock drive output Power window regulator master switch assembly (door control switch) or driver side door key cylinder neutral position Below 1 V
      Power window regulator master switch assembly (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 motor unlock drive output Power window regulator master switch assembly (door control switch) or driver side door key cylinder neutral position Below 1 V
      Power window regulator master switch assembly (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
      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

      		 Power window regulator master switch assembly (door control switch) or driver side door key cylinder neutral position Below 1 V
      Power window regulator master switch assembly (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
      Ignition switch off, all doors closed and driver side door locked Pulse generation (see waveform 1 or 2)
      D79-10 (LSWP) - Body ground LG - Body ground Front passenger side door lock position switch input Front passenger side door unlocked Below 1 V
      Ignition switch off, all doors closed and passenger side door locked Pulse generation (see waveform 1 or 2)
      D81-10 (LSR) - Body ground Y - Body ground Rear door lock position switch input Rear door unlocked Below 1 V
      Ignition switch off, all doors closed and rear door locked Pulse generation (see waveform 1 or 2)
      D79-12 (BDSU) - Body ground V - Body ground Back door opener switch input Back door opener switch off Below 1 V
      Back door opener switch on Pulse generation (see waveform 3 or 4)
      DH-6 (UL2) - Body ground P - Body ground Driver side door lock key switch input Driver side door key cylinder lock Below 1 V
      Ignition switch off, all doors closed and driver side door key cylinder neutral position Pulse generation (see waveform 3 or 4)
      D79-4 (BATB) - Body ground BR - Body ground Battery power supply for collision door lock release Collision door lock release function does not operate

      Below 2 V*5

      7.3 to 9.9 V*6
      Collision door lock release function operates Below 1 V

      • *1: for LHD

        *2: for RHD

        *3: for Sedan

        *4: for Wagon

        *5: Door control battery not charged

        *6: Door control battery charged

    5. A004UE9E01

      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
      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
      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
      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
    6. A004O4AE01

      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
      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
      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
      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
    7. A004PRUE08

      Using an oscilloscope, check waveform 3.

      Waveform 3 (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
      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
    8. A004U74E01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (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
      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

  2. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Click here

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

    A004MMQE02

    1. Disconnect the D166 double door lock control relay assembly 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
      D166-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D166-11 (CPUB) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      D166-12 (+B) - Body ground B - Body ground Battery power supply Always 11 to 14 V

    3. Reconnect the D166 double door lock control relay assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D166-1 (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
      D166-3 (DLPL) - Body ground P - Body ground Rear door LH side double locking switch input Double lock not set 10 kΩ or higher
      Double lock set Below 1 Ω
      D166-4 (DLPR) - Body ground L - Body ground Rear door RH side double locking switch input Double lock not set 10 kΩ or higher
      Double lock set Below 1 Ω
      D166-5 (DLPP) - Body ground L - Body ground Front door LH side double locking switch input Double lock not set 10 kΩ or higher
      Double lock set Below 1 Ω
      D166-6 (DLPD) - Body ground GR - Body ground Front door RH side double locking switch input Double lock not set 10 kΩ or higher
      Double lock set Below 1 Ω
      D166-8 (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