WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Smart Entry and Start System) TERMINALS OF ECU


  1. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY ECU

    B003NLDC34
    *A for RHD *B for LHD
    *1 Instrument Panel Junction Block Assembly - -
    B003Q15C12
    *1 Body ECU - -

    1. Remove the body ECU from the instrument panel junction block assembly.

      for LHD: Click here

      for RHD: Click here

    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
      A-1 (GND) - Body ground - Ground Always Below 1 Ω
      A-6 (BECU) - Body ground - Battery power supply Always 11 to 14 V
      A-7 (IG) - Body ground - Ignition power supply Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V

    3. Install the body ECU to the instrument panel junction block assembly.

      for LHD: Click here

      for RHD: Click here

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      2N-2 (ACT+) - Body ground

      LG - Body ground*1

      LA-B - Body ground*2

      		 Door lock motor lock drive output (all doors) Door control switch (power window regulator master switch assembly) or driver door key cylinder off Below 1 V
      Door control switch (power window regulator master switch assembly) or driver door key cylinder locked 11 to 14 V
      2N-3 (ACT-) - Body ground

      GR - Body ground*1

      LA-W - Body ground*2

      		 Door lock motor unlock drive output (all doors) Door control switch (power window regulator master switch assembly) or driver door key cylinder off Below 1 V
      Door control switch (power window regulator master switch assembly) or driver door key cylinder unlocked 11 to 14 V
      2Q-1 (DCTY) - Body ground B - Body ground Driver door courtesy light switch input Driver door open Below 1 V
      Driver door closed Pulse generation
      2Q-2 (ACTY) - Body ground Y - Body ground All door courtesy light switches input except driver door Except driver door open Below 1 V
      Except driver door closed Pulse generation
      2L-4 (DCTY) - Body ground R - Body ground Driver door courtesy light switch input Driver door open Below 1 V
      Driver door closed Pulse generation
      G33-2 (LSWP) - Body ground Y - Body ground Except driver door unlock detection switch input Except driver door unlocked Below 1 V
      Except driver door locked Pulse generation
      G33-6 (HAZ) - Body ground SB - Body ground Hazard warning signal output Answer-back off 11 to 14 V
      Answer-back on Below 1 V
      G33-8 (KSW) - Body ground G - Body ground Unlock warning switch input No key in ignition key cylinder Pulse generation
      Key in ignition key cylinder Below 1 V
      G33-9 (PRG) - Body ground V - Body ground Signal output to door control receiver Key inserted into ignition key cylinder → Key pulled out of ignition key cylinder 11 to 14 V → Pulse generation → 11 to 14 V
      G33-14 (PCTY) - Body ground LG - Body ground Front passenger door courtesy light switch input Front passenger door open Below 1 V
      Front passenger door closed Pulse generation
      G33-15 (LSWD) - Body ground R - Body ground Driver door unlock detection switch input Driver door unlocked Below 1 V
      Driver door locked Pulse generation
      G33-16 (RDA) - Body ground W - Body ground Signal input from door control receiver Ignition switch off, all doors closed and door control transmitter switch not pressed 11 to 14 V
      Ignition switch off, all doors closed and door control transmitter switch pressed Pulse generation

      • *1: w/ Door Control Battery

      • *2: w/o Door Control Battery

  2. CHECK COMBINATION METER ASSEMBLY

    Click here