WIRELESS DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    B007WU5C12
    *A for LHD *B for RHD

    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.


    2. Reconnect the instrument panel junction block assembly connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      MB-11 (GND1) - Body ground - Ground Always Below 1 Ω
      MB-30 (ACC) - Body ground - ACC power supply Engine switch on (ACC) 11 to 14 V
      MB-30 (ACC) - Body ground - ACC power supply Engine switch off Below 1 V
      MB-31 (BECU) - Body ground - Battery power supply Always 11 to 14 V
      MB-32 (IG) - Body ground - IG power supply Engine switch on (IG) 11 to 14 V
      MB-32 (IG) - Body ground - IG power supply Engine switch off Below 1 V

    4. Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.


    5. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      J9-2 (LSWR) - Body ground L - Body ground Rear door RH unlock detection switch input Rear door RH unlocked Below 1 V
      J9-2 (LSWR) - Body ground L - Body ground Rear door RH unlock detection switch input Rear door RH locked Pulse generation
      J8-2 (UL3) - Body ground

      V - Body ground*3

      L - Body ground*4

      		 Driver door key-linked unlock input Driver door key cylinder turned to neutral position → on (unlock) Pulse generation → Below 1 V
      J8-6 (FLCY) - Body ground P - Body ground Front door courtesy light switch (for LH) input Front door LH open Below 1 V
      J8-6 (FLCY) - Body ground P - Body ground Front door courtesy light switch (for LH) input Front door LH closed Pulse generation
      J8-27 (FRCY) - Body ground R - Body ground Front door courtesy light switch (for RH) input Front door RH open Below 1 V
      J8-27 (FRCY) - Body ground R - Body ground Front door courtesy light switch (for RH) input Front door RH closed Pulse generation
      J8-29 (L2) - Body ground

      P - Body ground*3

      Y - Body ground*4

      		 Driver door key-linked lock input Driver door key cylinder turned to neutral position → on (lock) Pulse generation → Below 1 V
      2D-8 (ACT-) - Body ground W - Body ground Door lock motor unlock drive output Door control switch or driver door key cylinder off → on (unlock) Below 1 V → 11 to 14 V → Below 1 V
      2D-6 (ACT+) - Body ground P - Body ground Door lock motor lock drive output Door control switch or driver door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V
      2D-24 (LCTY) - Body ground W - Body ground Rear door courtesy light switch (for LH) input Rear door LH open Below 1 V
      2D-24 (LCTY) - Body ground W - Body ground Rear door courtesy light switch (for LH) input Rear door LH closed Pulse generation
      2D-34 (BCTY) - Body ground*1 Y - Body ground Back door courtesy light switch input Back door open Below 1 V
      2D-34 (BCTY) - Body ground*1 Y - Body ground Back door courtesy light switch input Back door closed Pulse generation
      2D-20 (TR+) - Body ground*1 B - Body ground Back door lock motor drive output Back door closed → open Below 1 V → 11 to 14 V → Below 1 V
      2B-14 (LSWL) - Body ground V - Body ground Rear door LH unlock detection switch input Rear door LH unlocked Below 1 V
      2B-14 (LSWL) - Body ground V - Body ground Rear door LH unlock detection switch input Rear door LH locked Pulse generation
      2C-29 (BZR) - Body ground*2 P - Body ground Wireless door lock buzzer output Engine switch off, all doors closed, electrical key transmitter sub-assembly no inside vehicle and lock or unlock switch of electrical key transmitter sub-assembly not pressed → pressed (wireless door lock buzzer answer-back) Below 1 V → Pulse generation
      2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output Door control switch or driver door key cylinder off → on (unlock) Below 1 V → 11 to 14 V → Below 1 V
      2A-1 - Body ground L - Body ground Door lock power supply Door control switch or driver door key cylinder off → on (lock or unlock) 11 to 14 V → Below 1 V → 11 to 14 V
      2D-9 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output Door control switch or driver door key cylinder off → on (unlock) Below 1 V → 11 to 14 V → Below 1 V
      2B-4 (ACTD) - Body ground B - Body ground Door lock motor unlock drive output Door control switch or driver door key cylinder off → on (unlock) Below 1 V → 11 to 14 V → Below 1 V
      2D-18 (ACT+) - Body ground B - Body ground Door lock motor lock drive output Door control switch or driver door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V
      2B-2 (ACT+) - Body ground R - Body ground Door lock motor lock drive output Door control switch or driver door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V
      2A-31 (RCTY) - Body ground R - Body ground Rear door courtesy light switch (for RH) input Rear door RH open Below 1 V
      2A-31 (RCTY) - Body ground R - Body ground Rear door courtesy light switch (for RH) input Rear door RH closed Pulse generation
      2B-12 (LSFR) - Body ground P - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      2B-12 (LSFR) - Body ground P - Body ground Front door RH unlock detection switch input Front door RH locked Pulse generation
      2B-13 (LSFL) - Body ground B - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      2B-13 (LSFL) - Body ground B - Body ground Front door LH unlock detection switch input Front door LH locked Pulse generation

      • *1: w/o Power Back Door System

      • *2: w/ Wireless Door Lock Buzzer Answer-back Function

      • *3: for LHD

      • *4: for RHD

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A01VXLNC11
    *A for LHD *B for RHD

    1. Disconnect the J41 certification ECU (smart key ECU assembly) connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      J41-4 (+B) - Body ground V - Body ground Battery power supply Always 11 to 14 V
      J41-18 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the J41 certification ECU (smart key ECU assembly) connector.

    4. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition

      R1-18 (RCO) - J41-18 (E)*1

      S5-18 (RCO) - J41-18 (E)*2

      LG - W-B*1

      V - W-B*2

      Output to door control receiver

      (Power supply for door control receiver. Certification ECU (smart key ECU assembly) outputs 5 V when receiver starts operating.)

        Proceed:

      1. The engine switch off

      2. Bring electrical key transmitter sub-assembly outside detection area but within wireless function operational area

      3. Press lock or unlock switch of electrical key transmitter sub-assembly

      		 Below 1 V → 4.5 to 5.5 V

      R1-20 (CSEL) - J41-18 (E)*1

      S5-20 (CSEL) - J41-18 (E)*2

      		 SB - W-B Communication channel switching circuit

        Proceed:

      1. The engine switch off

      2. Close all doors

      		 No pulse generation → Pulse generation

      R1-19 (RDAM) - J41-8 (E)*1

      S5-19 (RDAM) - J41-8 (E)*2

      		 W - W-B Door control receiver communication circuit

        Proceed:

      1. The engine switch off

      2. All doors locked

      3. Bring electrical key transmitter sub-assembly outside detection area but within wireless function operational area

      4. Press lock or unlock switch of electrical key transmitter sub-assembly

      		 11 to 14 pulse generation at regular intervals → Pulse generation

      • *1: for LHD

      • *2: for RHD