WIRELESS DOOR LOCK CONTROL SYSTEM(w/o Power Switch) TERMINALS OF ECU


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

    A01UYRME02
    Text in Illustration
    *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 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 Auxiliary battery power supply Always 11 to 14 V
      MB-32 (IG) - Body ground None - Body ground IG power supply Ignition switch ON (IG) 11 to 14 V
      Ignition switch off Below 1 V
      MB-29 (ACC) - Body ground None - Body ground ACC power supply Ignition switch ACC 11 to 14 V
      Ignition switch off Below 1 V

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

    4. Measure the voltage and resistance, check for pulse according to the value(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
      F57-19 (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
      F57-6 (LRCY) - Body ground 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
      F57-17 (KSW) - 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
      F57-11 (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
      F57-12 (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 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 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 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 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
      F57-18 (LSFR) - Body ground LG - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      Front door RH locked Pulse generation
      F57-7 (LSFL) - Body ground L - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      Front door LH locked Pulse generation
      3D-25 (LSR) - Body ground 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 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