POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK COWL SIDE JUNCTION BLOCK LH AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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    Text in Illustration
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    1. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH Click here.

    2. Connect the cowl side junction block LH connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω
      A-29 (ACC) - Body ground None - Body ground ACC power supply Engine switch on (ACC) 11 to 14 V
      Engine switch off Below 1 V
      A-30 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      A-31 (ALTB) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      A-32 (IG) - Body ground None - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
    4. Install the main body ECU (multiplex network body ECU) to the cowl side junction block LH Click here.

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

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      5A-11 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output signal (front passenger side door and rear door RH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked 11 to 14 V
      5A-13 (ACT+) - Body ground G - Body ground Door lock motor lock drive output signal (front passenger side door and rear door RH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      5A-33 (FRCY) - Body ground R - Body ground Front door courtesy light switch assembly RH input signal Front door RH open Below 1 V
      Front door RH closed Pulse generation
      5C-8 (ACT+) - Body ground G - Body ground Door lock motor lock drive output signal (rear door LH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      5C-9 (ACT+) - Body ground G - Body ground Door lock motor lock drive output signal (driver door) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      5C-10 (ACTD) - Body ground L - Body ground Door lock motor unlock drive output signal (driver door) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked 11 to 14 V
      5C-12 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output signal (rear door LH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked 11 to 14 V
      5C-30 (LSWL) - Body ground B - Body ground Rear door LH unlock detection switch input signal Rear door LH unlocked Below 1 V
      Engine switch off, all doors closed and rear door LH locked Pulse generation
      5C-44 (FLCY) - Body ground R - Body ground Front door courtesy light switch assembly LH input signal Front door LH open Below 1 V
      Front door LH closed Pulse generation
      5A-60 (GSW) - Body ground B - Body ground Wireless door lock buzzer output signal Engine switch off, all doors closed and electrical key transmitter sub-assembly OFF → ON (answer-back) Below 1V → Pulse generation
      N11-3 (LCTY) - Body ground G - Body ground Rear door courtesy light switch assembly LH input signal Rear door LH open Below 1 V
      Rear door LH closed Pulse generation
      N12-6 (RCTY) - Body ground G - Body ground Rear door courtesy light switch assembly RH input signal Rear door RH open Below 1 V
      Rear door RH closed Pulse generation
      N12-7 (LSFL) - Body ground SB - Body ground Front door LH unlock detection switch input signal Front door LH unlocked Below 1 V
      Engine switch off, all doors closed and front door LH locked Pulse generation
      N12-18 (LSFR) - Body ground SB - Body ground Front door RH unlock detection switch input signal Front door RH unlocked Below 1 V
      Engine switch off, all doors closed and front door RH locked Pulse generation
      N13-2 (LSWR) - Body ground B - Body ground Rear door RH unlock detection switch input signal Rear door RH unlocked Below 1 V
      Engine switch off, all doors closed and rear door RH locked 11 to 14 V
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      5A-1 (ACTD) - Body ground L - Body ground Door lock motor unlock drive output signal (driver side) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked 11 to 14 V
      5A-11 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output signal (rear door RH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked 11 to 14 V
      5A-13 (ACT+) - Body ground G - Body ground Door lock motor lock drive output signal (driver door and rear door RH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      5A-33 (FRCY) - Body ground R - Body ground Front door courtesy light switch assembly RH input signal Front door RH open Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      Front door RH closed 11 to 14 V
      5C-8 (ACT+) - Body ground G - Body ground Door lock motor lock drive output signal (rear door LH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      5C-3 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output signal (front passenger door) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked 11 to 14 V
      5C-8 (ACT+) - Body ground G - Body ground Door lock motor lock drive output signal (rear door LH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      5C-9 (ACT+) - Body ground G - Body ground Door lock motor lock drive output signal (front passenger door) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked 11 to 14 V
      5C-12 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output signal (rear door LH) Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off Below 1 V
      Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked 11 to 14 V
      5C-30 (LSWL) - Body ground GR - Body ground Rear door LH unlock detection switch input signal Rear door LH unlocked Below 1 V
      Engine switch off, all doors closed and rear door LH locked Pulse generation
      5C-44 (FLCY) - Body ground R - Body ground Front door courtesy light switch assembly LH input signal Front door LH open Below 1 V
      Front door LH closed Pulse generation
      5A-60 (GSW) - Body ground B - Body ground Wireless door lock buzzer output signal Engine switch off, all doors closed and electrical key transmitter sub-assembly OFF → ON (answer-back) Below 1V → Pulse generation
      N11-3 (LCTY) - Body ground G - Body ground Rear door courtesy light switch assembly LH input signal Rear door LH open Below 1 V
      Rear door LH closed Pulse generation
      N12-6 (RCTY) - Body ground G - Body ground Rear door courtesy light switch assembly RH input signal Rear door RH open Below 1 V
      Rear door RH closed Pulse generation
      N12-7 (LSFL) - Body ground SB - Body ground Front door LH unlock detection switch input signal Front door LH unlocked Below 1 V
      Engine switch off, all doors closed and front door LH locked Pulse generation
      N12-18 (LSFR) - Body ground SB - Body ground Front door RH unlock detection switch input signal Front door RH unlocked Below 1 V
      Engine switch off, all doors closed and front door RH locked Pulse generation
      N13-2 (LSWR) - Body ground P - Body ground Rear door RH unlock detection switch input signal Rear door RH unlocked Below 1 V
      Engine switch off, all doors closed and rear door RH locked 11 to 14 V
  2. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


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      Text in Illustration
      *A for LHD
      *B for RHD

      Disconnect the Q25*1 or A10*2 multiplex network master switch assembly connector.


      • *1: for LHD

      • *2: for RHD

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

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Q25-11 (B) - Body ground P - Body ground Battery power supply Always 11 to 14 V
      Q25-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Q10-11(B) - Body ground P - Body ground Battery power supply Always 11 to 14 V
      Q10-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
  3. CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH

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    1. Disconnect the Q19 front multiplex network door ECU LH 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
      Q18-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      Q19-4 (CPUB) - Body ground P - Body ground Battery power supply Always 11 to 14 V
      Q18-6 (BDR) - Body ground V - Body ground Battery power supply Always 11 to 14 V
    3. w/ Double Locking System:

      Reconnect the Q18 front multiplex network door ECU LH 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
      Q18-1 (A1+) - Body ground V - Body ground Driver door double lock motor set on output Double lock unset Below 1 V
      Double lock set 11 to 14 V
      Q18-5 (A1-) - Body ground Y - Body ground Driver door double lock motor set off output Double lock unset 11 to 14 V
      Double lock set Below 1 V
      Q18-2 (A2+) - Body ground GR - Body ground Rear door LH double lock motor set on output Double lock unset Below 1 V
      Double lock set 11 to 14 V
      Q18-6 (A2-) - Body ground L - Body ground Rear door LH double lock motor set off output Double lock unset 11 to 14 V
      Double lock set Below 1 V
      Q18-19 (DBLS) - Q18-20 (DBE) R - B Driver door double lock position switch circuit Double lock unset Pulse generation
      Double lock set Below 1 V
      Q18-3 (DBLS) - Body ground LG - Body ground Rear door LH double lock position switch input Double lock unset Pulse generation
      Double lock set Below 1 V
  4. CHECK FRONT MULTIPLEX NETWORK DOOR ECU RH

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    1. Disconnect the Q4 front multiplex network door ECU RH 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
      Q4-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      Q4-4 (CPUB) - Body ground P - Body ground Battery power supply Always 11 to 14 V
      Q4-6 (BDR) - Body ground V - Body ground Battery power supply Always 11 to 14 V
    3. w/ Double Locking System:

      Reconnect the Q4 front multiplex network door ECU RH 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
      Q3-1 (A1+) - Body ground V - Body ground Front passenger side door double lock motor set on output Double lock unset Below 1 V
      Double lock set 11 to 14 V
      Q3-5 (A1-) - Body ground Y - Body ground Front passenger side door double lock motor set off output Double lock unset 11 to 14 V
      Double lock set Below 1 V
      Q3-2 (A2+) - Body ground L - Body ground Rear door RH double lock motor set on output Double lock unset Below 1 V
      Double lock set 11 to 14 V
      Q3-6 (A2-) - Body ground GR - Body ground Rear door RH double lock motor set off output Double lock unset 11 to 14 V
      Double lock set Below 1 V
      Q3-19 (DBLS) - Q3-20 (DBE) R - B Front passenger side door double lock position switch circuit Double lock unset Pulse generation
      Double lock set Below 1 V
      Q3-3 (DBLS) - Body ground LG - Body ground Rear door RH double lock position switch input Double lock unset Pulse generation
      Double lock set Below 1 V
  5. CHECK CENTER AIRBAG SENSOR ASSEMBLY Click here