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


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

    A006WMKE01

    1. Disconnect the D79, D80, DB, DE and DG ECU 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
      D79-4 (BATB) - Body ground BR - Body ground Battery power supply Always 11 to 14 V
      DG-1 (ALTB) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      DB-30 (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
      D80-4 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the D79, D80, DB, DE and DG ECU connectors.

    4. Measure the voltage 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 input Driver side door open Below 1 V
      Engine switch off and driver side door courtesy light switch 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 input Front passenger side door open Below 1 V
      Engine switch off and passenger side door courtesy light switch off 11 to 14 V
      D79-8 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch LH input Rear door LH open Below 1 V
      Engine switch off and rear door courtesy light switch LH off 11 to 14 V
      DE-19 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch RH input Rear door RH open Below 1 V
      Engine switch off and rear door courtesy light switch RH off 11 to 14 V
      DA-7 (BCTY) - Body ground LG - Body ground Luggage compartment door*3 or back door*4 courtesy light switch input Luggage compartment door*3 or back door*4 open Below 1 V
      Engine switch off and luggage compartment door*3 or back door*4 closed 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
      Engine switch off, all doors closed and driver side door locked

      Pulse generation

      (see waveform 1 or 2)
      D79-10 (LWSP) - Body ground LG - Body ground Front passenger side door lock position switch input Front passenger side door unlocked Below 1 V
      Engine switch off, all doors closed and passenger side door locked

      Pulse generation

      (see waveform 3 or 4)
      D81-10 (LSR) - Body ground Y - Body ground Rear door lock position switch input Rear door unlocked Below 1 V
      Engine switch off, all doors closed and rear door locked

      Pulse generation

      (see waveform 5 or 6)
      D81-2 (BZR) - Body ground L - Body ground Wireless door lock buzzer signal Wireless door lock buzzer off Below 1 V
      Wireless door lock buzzer on Pulse generation

      • *1: for LHD

      • *2: for RHD

      • *3: for Sedan

      • *4: for Wagon

      If the result is not as specified, the ECU may have a malfunction.

    5. A006WNAE01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) D79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door locked
    6. A006VGLE01

      Using an oscilloscope, check waveform 2

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) D79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door locked
    7. A006WNAE01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference)
      Item Content
      Terminal No. (Symbol) D79-10 (LWSP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and passenger side door locked
    8. A006VGLE01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference)
      Item Content
      Terminal No. (Symbol) D79-10 (LWSP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and passenger side door locked
    9. A006WNAE01

      Using an oscilloscope, check waveform 5.

      Waveform 5 (Reference)
      Item Content
      Terminal No. (Symbol) D81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door locked
    10. A006VGLE01

      Using an oscilloscope, check waveform 6.

      Waveform 6 (Reference)
      Item Content
      Terminal No. (Symbol) D81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door locked

  2. CHECK CERTIFICATION ECU

    A006SLIE06

    1. Disconnect the D54 ECU 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
      D54-1 (+B) - D54-15 (E) R - W-B +B power supply Always 11 to 14 V
      D54-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D54-16 (IG) - D54-15 (E) L - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      D54-17 (CUTB) - D54-15 (E) W - W-B +B power supply Always 11 to 14 V

      If the result is not as specified, there may be a malfunction in the wire harness.

    3. Reconnect the D54 ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D59-5 (RCO) - D54-15 (E) V - W-B Entry door control receiver power source Engine switch off, all doors closed and transmitter switch not pressed → pressed Below 1 V → 4.5 to 5.5 V
      D59-14 (ASEL) - D54-15 (E)* L - W-B Change of door control receiver (door to luggage compartment) All doors locked, all doors closed and luggage compartment door closed → open Below 1 V → 4.5 to 6 V
      D59-15 (RDA) - D54-15 (E) Y - W-B Entry door control receiver data input signal Engine switch off 11 to 14 V pulse generation at regular intervals
      D59-16 (RSSI) - D54-15 (E) R - W-B Entry door control receiver electric wave existence signal All doors locked, all doors closed and transmitter switch not pressed → pressed 11 to 14 V → Below 2 V

      • *: for Sedan

      If the result is not as specified, the certification ECU may have a malfunction.