POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    A01MGUIC29
    *1 Main Body ECU (Multiplex Network Body ECU) - -

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

      for LHD: Click here

      for RHD: Click here

    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 Power switch on (ACC) 11 to 14 V
      Power switch off Below 1 V
      MB-31 (BECU) - Body ground - Auxiliary battery power supply Power switch off 11 to 14 V
      MB-32 (IG) - Body ground - IG power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V

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

      for LHD: Click here

      for RHD: Click here

    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
      G5-2 (LSWR) - Body ground Y - Body ground Rear door RH unlock detection switch input Rear door RH unlocked Below 1 V
      Rear door RH locked Pulse generation
      G6-2 (UL3) - Body ground BR - Body ground Driver door key-linked unlock input Driver door key cylinder turned to neutral position → on (unlock) Pulse generation → Below 1 V
      G6-6 (FLCY) - Body ground P - Body ground Front door courtesy light switch LH input Front door LH open Below 1 V
      Front door LH closed Pulse generation
      G6-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch RH input Front door RH open Below 1 V
      Front door RH closed Pulse generation
      G6-29 (L2) - Body ground GR - Body ground Driver door key-linked lock input Driver door key cylinder turned to neutral position → on (lock) Pulse generation → Below 1 V
      4D-10 (ACT-) - Body ground LA-G - 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
      4B-5 (ACT+) - Body ground LA-L - 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
      4D-25 (LCTY) - Body ground V - Body ground Rear door courtesy light switch LH input Rear door LH open Below 1 V
      4B-23 (LSWL) - Body ground GR - Body ground Rear door LH unlock detection switch input Rear door LH unlocked Below 1 V
      Rear door LH locked Pulse generation
      4B-3 (ACT-) - Body ground Y - 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
      4B-4 (ACT-) - Body ground LA-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
      4B-2 (ACTD) - Body ground LG - 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
      4B-6 (ACT+) - Body ground G - 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
      4D-7 (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
      4D-8 (ACT+) - Body ground LA-W - 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
      4B-17 (RCTY) - Body ground GR - Body ground Rear door courtesy light switch RH input Rear door RH open Below 1 V
      Rear door RH closed Pulse generation
      4B-27 (LSFR) - Body ground LG - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      Front door RH locked Pulse generation
      4B-26 (LSFL) - Body ground P - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      Front door LH locked Pulse generation
      4A-7 (GSW) - Body ground B - Body ground Unlock detection input Power switch on (IG) 2.8 to 4.3 V

  2. MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


    1. A01MG9ZE04

      Disconnect the multiplex network master switch assembly connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      N3-11 (B) - Body Y - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      N3-12 (GND) - Body W-B - Body ground Ground Always Below 1 Ω

  3. CHECK AIRBAG ECU ASSEMBLY

    Click here