WIRELESS DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


  1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

    A000Z6AE03

    1. Disconnect the DA, DD, DF, L12 and L13 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      DA-40 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DF-1 (ACC) - DA-40 (GND2) B - W-B ACC power supply Power switch OFF Below 1 V
      Power switch ON (ACC) 11 to 14 V
      DF-1 (IG) - DA-40 (GND2) B - W-B IG power supply Power switch OFF Below 1 V
      Power switch ON (IG) 11 to 14 V
      L13-24 (DCTY) - Body ground W - Body ground Driver side door courtesy light switch input Driver side door open Below 1 Ω
      Driver side door closed 10 kΩ or higher
      L12-21 (PCTY) - Body ground L - Body ground Passenger side door courtesy light switch input Passenger side door open Below 1 Ω
      Passenger side door closed 10 kΩ or higher
      L12-7 (RCTY) - Body ground R - Body ground Rear RH side door courtesy light switch input Rear side door RH open Below 1 Ω
      Rear side door RH closed 10 kΩ or higher
      DD-12 (LCTY) - Body ground L - Body ground Rear LH side door courtesy light switch input Rear side door LH open Below 1 Ω
      Rear side door LH closed 10 kΩ or higher

    3. Reconnect the DA, DD, DF, L12 and L3 ECU connectors.

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

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    L11-14 (HAZ) - Body ground BE - Body ground Turn signal light drive Hazard warning signal switch ON Pulse generation
    Hazard warning signal switch OFF Below 1 V

  2. CHECK FRONT MULTIPLEX NETWORK LIGHT ECU (FRONT CONTROLLER)

    A000X8VE02

    1. Disconnect the A50 and A52 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A50-2 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      A52-1 (BATB) - Body ground P - Body ground Power supply Always 11 to 14 V
      A52-5 (ALTB) - Body ground L - Body ground Power supply Always 11 to 14 V

    3. Reconnect the A50 and A52 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A52-14 (BZR)* - Body ground B - Body ground Wireless door lock buzzer output Wireless door lock buzzer ON 11 to 14 V
      Wireless door lock buzzer OFF Below 1 V

      Tech Tips

      *: Except Europe and China

  3. CHECK LUGGAGE CLOSER MOTOR ASSEMBLY

    A000X91E02

    1. Disconnect the S43 ECU connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      S43-11 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      S43-10 (ECUB) - S43-11 (GND) B - W-B Power supply Always 11 to 14 V
      S43-12 (B) - S43-11 (GND) G - W-B Power supply Always 11 to 14 V

    3. Reconnect the S43 ECU connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      S43-22 (LCTY) - S43-11 (GND) G - W-B Luggage compartment door courtesy light switch output Luggage compartment door open Pulse generation
      Luggage compartment door closed Below 1 V
    5. A000XKLE03

      Using an oscilloscope, check the waveform.

      Waveform (Reference)
      Item Content
      Terminal No. (Symbols) S43-22 (LCTY) - S43-11 (GND)
      Tool Setting 5 V/DIV. , 20ms/DIV.
      Condition Luggage compartment door open

  4. CHECK CERTIFICATION ECU

    A000TOEE02

    1. Disconnect the L15 and L16 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L15-17 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L15-1 (+B1) - L15-17 (E) L - W-B Battery power supply Always 11 to 14 V
      L15-18 (IG) - L15-17 (E) L - W-B IG power supply Power switch ON (IG) 11 to 14 V
      Power switch OFF Below 1 V

    3. Reconnect the L15 and L16 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L15-39 (RSSI) - L15-17 (E) W - W-B Door control receiver electric wave existence signal Power switch OFF, all doors closed, and transmitter switch not pressed 11 to 14 V
      Power switch OFF, all doors closed, and transmitter switch pressed Below 2 V
      L15-38 (RDA) - L15-17 (E) R - W-B Door control receiver data input signal Power switch OFF, all doors closed, and transmitter switch not pressed Below 2 V
      Power switch OFF, all doors closed, and transmitter switch pressed 11 to 14 V
      L15-37 (ASEL) - L15-17 (E) L - W-B Door control receiver select signal Power switch OFF, all doors closed, and luggage compartment door closed Below 1 V
      Power switch OFF, all doors closed, and luggage compartment door open 4.6 to 5.4 V
      L15-29 (RCO) - L15-17 (E) G - W-B Door control receiver power source Power switch OFF, all doors closed, and transmitter switch pressed 4.6 to 5.4 V
      Power switch OFF, all doors closed, and transmitter switch not pressed Below 1 V