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


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

    w/o Theft Deterrent System

    A005GVXE03
    Text in Illustration
    *A for LHD *B for RHD
    *1 Instrument Panel Junction Block Assembly *2

    Main Body ECU

    (Multiplex Network Body ECU)

    w/ Theft Deterrent System

    A005KMOE03
    Text in Illustration
    *1 Instrument Panel Junction Block Assembly *2

    Main Body ECU

    (Multiplex Network Body ECU)

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

    2. Measure the resistance and voltage between each terminal of the wire harness side connectors and body ground.

      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 (for CPU) Always 11 to 14 V
      MB-32 (IG) - Body ground None - Body ground Ignition power supply (IG signal) Ignition switch ON 11 to 14 V
      Ignition switch OFF Below 1 V

      Tech Tips

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

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      3D-36 - 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*1
      11 to 14 V*2
      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*1
      11 to 14 V*2
      F76-6 (LRCY) - Body ground G - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      Rear door LH closed Pulse generation*1
      11 to 14 V*2
      Rear door RH courtesy light switch input Rear door RH open Below 1 V
      Rear door RH closed Pulse generation*1
      11 to 14 V*2
      F76-1 (BCTY)*3 - Body ground B - Body ground Back door courtesy light switch input Back door open Below 1 V
      Back door closed Pulse generation*1
      11 to 14 V*2
      3D-35*1, *4 - Body ground B - Body ground Back door courtesy light switch input Back door open Below 1 V
      Back door closed Pulse generation*1
      11 to 14 V*2
      F76-17 (KSW)*3 - Body ground Y - Body ground Unlock warning switch input NO key in ignition key cylinder (off) 10 kΩ or higher
      Key inserted (on) Below 1 Ω
      F76-11 (L2) - Body ground B - Body ground Driver side door key-linked lock input Driver side door key cylinder in lock position Below 1 V
      Driver side door key cylinder in neutral position 11 to 14 V
      F76-12 (UL2) - Body ground G - Body ground Driver side door key-linked unlock input Driver side door key cylinder in unlock position Below 1 V
      Driver side door key cylinder in neutral position Pulse generation*1
      11 to 14 V*2
      3B-2 - 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 - 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
      3B-12 - Body ground 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 - Body ground 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 - 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 - 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 - 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 - Body ground 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 - Body ground 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 Front door RH lock position switch input Front door RH unlocked Below 1 V
      Front door RH locked Pulse generation
      F76-7 (LSFL)*1- Body ground L - Body ground Front door LH lock position switch input Front door LH unlocked Below 1 V
      Front door LH locked 11 to 14 V
      3D-25*1 - Body ground V - Body ground Rear door RH lock position switch input Rear door RH unlocked Below 1 V
      Rear door RH locked 11 to 14 V
      3D-24*1 - Body ground Y - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V
      Rear door LH locked 11 to 14 V

      • *1: w/ Rear Fog Light

      • *2: w/o Rear Fog Light

      • *3: w/o Rear Fog Light and w/o Automatic Light Control System

      • *4: w/o Rear Fog Light and w/ Automatic Light Control System

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A005LM7E02

    1. Disconnect the F63 and F65 certification ECU (smart key ECU assembly) 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
      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
      F63-5 (IG) - F65-11 (E) P - BR IG power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V

      *: 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).

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

    3. Reconnect the F63 and F65 certification ECU (smart key ECU assembly) connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F64-5 (RCO) - F65-11 (E) SB - BR Entry door control receiver power source Engine switch off, all doors closed and electrical key switch on Pulse generation → 4.5 to 5.5 V
      F64-17 (RDAS) - F65-11 (E) LG - BR Entry door control receiver data input signal Engine switch off 11 to 14 V pulse generation output at regular interval
      F64-19 (RSSI) - F65-11 (E) P - BR Entry door control receiver electric wave existence signal All door locked, all doors closed and electrical key switch on 11 to 14 V → Below 2 V