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


  1. CHECK MAIN BODY ECU AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

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    Text in Illustration
    *A for LHD *B for RHD
    *1 Instrument Panel Junction Block Assembly *2 Main Body ECU

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

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      MB-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω
      MB-30 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      MB-32 (IG) - Body ground None - Body ground Engine switch power supply Engine switch ON 11 to 14 V
      Engine switch OFF Below 1 V
      MB-29 (ACC) - Body ground None - Body ground ACC power supply Engine switch ACC 11 to 14 V
      Engine switch OFF Below 1 V

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

    4. Measure the voltage, check for pulse according to the valve(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      3D-36 (FLCY) - Body ground L - Body ground Front door LH courtesy light switch input Front door LH open Below 1 V
      Front door LH closed Pulse generation
      F76-19 (FRCY) - Body ground Y - Body ground Front door RH courtesy light switch input Front door RH open Below 1 V
      Front door RH closed Pulse generation
      F76-6 (LRCY) - Body ground*1 G - Body ground Rear door courtesy light switch input Rear door LH or RH open Below 1 V
      Rear door LH and RH closed Pulse generation
      3D-35 (BCTY) - Body ground B - Body ground Back door courtesy light switch input Back door open Below 1 V
      Back door closed 11 to 14 V
      F76-11 (L2) - Body ground B - Body ground Driver side door lock and unlock switch input Driver side door key cylinder in lock position Below 1 V
      Driver side door key cylinder in neutral position Pulse generation
      F76-12 (UL2) - Body ground G - Body ground Driver side door lock and unlock switch input Driver side door key cylinder in unlock position Below 1 V
      Driver side door key cylinder in neutral position Pulse generation
      3B-2 (ACT+) - Body ground V - Body ground Door lock motor lock drive output (for front RH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Lock side of driver side door control switch pushed or driver side door key cylinder in lock position 11 to 14 V
      3B-1 (ACT+) - Body ground Y - Body ground Door lock motor lock drive output (for front LH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Lock side of driver side door control switch pushed or driver side door key cylinder in lock position 11 to 14 V
      3D-12 (ACT+) - Body ground*1 L - Body ground Door lock motor lock drive output (for rear RH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Lock side of driver side door control switch pushed or driver side door key cylinder in lock position 11 to 14 V
      3D-11 (ACT+) - Body ground*1 GR - Body ground Door lock motor lock drive output (for rear LH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Lock side of driver side door control switch pushed or driver side door key cylinder in lock position 11 to 14 V
      3D-9 (TR+) - Body ground Y - Body ground Door lock motor lock drive output (for back door) Back door closed 11 to 14 V
      Back door opener - switch pushed Below 1 V
      3B-3 (ACT-) - Body ground R - Body ground Door lock motor unlock drive output (for front RH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Unlock side of - driver side door control switch pushed or driver side door key cylinder in unlock position 11 to 14 V
      3B-4 (ACT-) - Body ground L - Body ground Door lock motor unlock drive output (for front LH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Unlock side of - driver side door control switch pushed or driver side door key cylinder in unlock position 11 to 14 V
      3D-8 (ACT-) - Body ground*1 P - Body ground Door lock motor unlock drive output (for rear RH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Unlock side of - driver side door control switch pushed or driver side door key cylinder in unlock position 11 to 14 V
      3D-7 (ACT-) - Body ground*1 LG - Body ground Door lock motor unlock drive output (for rear LH side) Driver side door control switch not pushed and driver side door key cylinder in neutral position Below 1 V
      Unlock side of - driver side door control switch pushed or driver side door key cylinder in unlock position 11 to 14 V
      F76-18 (LSFR) - Body ground LG - Body ground*2 Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      LG - Body ground*3, *5 Front door RH locked Pulse generation
      R - Body ground*3, *4
      F76-7 (LSFL) - Body ground L - Body ground*2, *5 Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      L - Body ground*3 Front door LH locked Pulse generation
      R - Body ground*2, *4
      3D-25 (LSR) - Body ground*1 V - Body ground Rear door RH unlock detection switch input Rear door RH or LH unlocked Below 1 V
      Rear door RH and LH locked Pulse generation
      3D-24 (LSR) - Body ground*1 Y - Body ground Rear door LH unlock detection switch input Rear door LH or RH unlocked Below 1 V
      Rear door LH and RH locked Pulse generation

      • *1: for 5 Door

      • *2: for LHD

      • *3: for RHD

      • *4: w/ Retract Mirror

      • *5: w/o Retract Mirror

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

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    1. Disconnect the F65 certification ECU (smart key ECU assembly) 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
      F65-2 (+B) - F65-11 (E) W - BR +B power supply Always 11 to 14 V
      F65-10 (CUTB) - F65-11 (E) Y - BR Dark current cut pin* Always 11 to 14 V
      F65-11 (E) - Body ground BR - Body ground Ground Always Below 1 Ω

      *: In order to prevent the battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is set in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of electric waves every 250 ms. that form the detection area stops).

    3. Reconnect the F65 certification ECU (smart key ECU assembly) connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F63-5 (IG) - F65-11 (E) P - BR IG power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V
      F64-5 (RCO) - F65-11 (E) SB - BR Entry door control receiver power source Always 11 to 14 V
      F64-17 (RDAS) - F65-11 (E) LG - BR Entry door control receiver data input signal Engine switch off, all doors locked and electrical key transmitter assembly switch not pressed → electrical key transmitter switch pressed

      Below 3 V

      (Pulse generation)
      F64-19 (RSSI) - F65-11 (E) P - BR Entry door control receiver electric wave existence signal Engine switch off, all doors locked and electrical key transmitter assembly switch not pressed → electrical key transmitter switch pressed

      Below 3 V

      (Pulse generation)

  3. CHECK DOOR CONTROL RECEIVER

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    1. Disconnect the K12 door control receiver connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K12-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the K12 door control receiver connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K12-4 (+5) - K12-1 (GND) W - W-B Entry door control receiver power source Always 11 to 14 V
      K12-5 (+B) - K12-1 (GND) R - W-B Date input/output (KLine) Engine switch off, all doors locked and electrical key transmitter assembly switch not pressed → electrical key transmitter switch pressed

      Below 3 V

      (Pulse generation)
      K12-2 (RDA) - K12-1 (GND) Y - W-B Interrupt signal Engine switch off, all doors locked and electrical key transmitter assembly switch not pressed → electrical key transmitter switch pressed

      Below 3 V

      (Pulse generation)