POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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


    1. Disconnect the 2C, 2F and 2K main body ECU (driver side junction block assembly) connectors.

      A01EL3SE03

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2C-24 (BECU) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      2C-30 (ALTB) - Body ground BR - Body ground Battery power supply Always 11 to 14 V
      2F-16 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      2K-17 (GND2) - Body ground W - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the 2C, 2F and 2K main body ECU (driver side junction block assembly) connectors.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      D50-24 (DCTY) - Body ground V - Body ground Driver side door courtesy light switch input Driver side door open Below 1 V
      D50-24 (DCTY) - Body ground V - Body ground Driver side door courtesy light switch input Driver side door close Pulse generation
      D49-21 (PCTY) - Body ground V - Body ground Front passenger side door courtesy light switch input Front passenger side door open Below 1 V
      D49-21 (PCTY) - Body ground V - Body ground Front passenger side door courtesy light switch input Front passenger side door close Pulse generation
      2O-19 (LCTY) - Body ground R - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      2O-19 (LCTY) - Body ground R - Body ground Rear door LH courtesy light switch input Rear door LH close Pulse generation
      D49-7 (RCTY) - Body ground GR - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V
      D49-7 (RCTY) - Body ground GR - Body ground Rear door RH courtesy light switch input Rear door RH close Pulse generation
      D49-25 (BCTY) - Body ground GR - Body ground Back door courtesy light switch input Back door open Below 1 V
      D49-25 (BCTY) - Body ground GR - Body ground Back door courtesy light switch input Back door closed Pulse generation
      2J-3 (L1) - Body ground G - Body ground Front passenger side door control switch input Front passenger side door control switch lock side pressed Below 1 V
      2J-3 (L1) - Body ground G - Body ground Front passenger side door control switch input Front passenger side door control switch off 11 to 14 V
      2J-4 (UL1) - Body ground L - Body ground Front passenger side door control switch input Front passenger side door control switch unlock side pressed Below 1 V
      2J-4 (UL1) - Body ground L - Body ground Front passenger side door control switch input Front passenger side door control switch off 11 to 14 V
      2K-2 (ACT+) - Body Ground R - Body Ground Door lock motor lock drive output (Driver side) Power window regulator master switch assembly or driver side door key cylinder off Below 1 V
      2K-2 (ACT+) - Body Ground R - Body Ground Door lock motor lock drive output (Driver side) Power window regulator master switch assembly or driver side door key cylinder lock 11 to 14 V
      D50-5 (ACTD) - Body Ground LG - Body Ground Door lock motor unlock drive output (Driver side) Power window regulator master switch assembly or driver side door key cylinder off Below 1 V
      D50-5 (ACTD) - Body Ground LG - Body Ground Door lock motor unlock drive output (Driver side) Power window regulator master switch assembly or driver side door key cylinder unlock 11 to 14 V
      2J-1 (ACT+) - Body Ground R - Body Ground Door lock motor lock drive output (Front passenger side) Power window regulator master switch assembly or driver side door key cylinder off Below 1 V
      2J-1 (ACT+) - Body Ground R - Body Ground Door lock motor lock drive output (Front passenger side) Power window regulator master switch assembly or driver side door key cylinder lock 11 to 14 V
      2J-2 (ACT-) - Body Ground SB - Body Ground Door lock motor unlock drive output (Front passenger side) Power window regulator master switch assembly off Below 1 V
      2J-2 (ACT-) - Body Ground SB - Body Ground Door lock motor unlock drive output (Front passenger side) Power window regulator master switch assembly unlock 11 to 14 V
      2F-11 (ACT+) - Body Ground LG - Body Ground Door lock motor lock drive output (Rear right door) Power window regulator master switch assembly or driver side door key cylinder off Below 1 V
      2F-11 (ACT+) - Body Ground LG - Body Ground Door lock motor lock drive output (Rear right door) Power window regulator master switch assembly or driver side door key cylinder lock 11 to 14 V
      2F-30 (ACT-) - Body Ground R - Body Ground Door lock motor unlock drive output (Rear right door) Power window regulator master switch assembly off Below 1 V
      2F-30 (ACT-) - Body Ground R - Body Ground Door lock motor unlock drive output (Rear right door) Power window regulator master switch assembly unlock 11 to 14 V
      2O-17 (ACT+) - Body Ground GR - Body Ground Door lock motor lock drive output (Rear left door) Power window regulator master switch assembly or driver side door key cylinder off Below 1 V
      2O-17 (ACT+) - Body Ground GR - Body Ground Door lock motor lock drive output (Rear left door) Power window regulator master switch assembly or driver side door key cylinder lock 11 to 14 V
      2O-6 (ACT-) - Body Ground R - Body Ground Door lock motor unlock drive output (Rear left door) Power window regulator master switch assembly off Below 1 V
      2O-6 (ACT-) - Body Ground R - Body Ground Door lock motor unlock drive output (Rear left door) Power window regulator master switch assembly unlock 11 to 14 V
      D50-9 (LSWD) - Body Ground P - Body Ground Driver side door position switch input Driver side door unlock Below 1 V
      D50-9 (LSWD) - Body Ground P - Body Ground Driver side door position switch input Driver side door lock Pulse generation
      D49-27 (LSWP) - Body ground P - Body ground Front passenger side door lock position switch input Front passenger side door unlock Below 1 V
      D49-27 (LSWP) - Body ground P - Body ground Front passenger side door lock position switch input Front passenger side door lock Pulse generation
      2O-5 (LSR) - Body ground BR - Body ground Rear door LH lock position switch input Rear door LH unlock Below 1 V
      2O-5 (LSR) - Body ground BR - Body ground Rear door LH lock position switch input Rear door LH lock Pulse generation
      2F-5 (LSR) - Body ground Y - Body ground Rear door RH lock position switch input Rear door RH unlock Below 1 V
      2F-5 (LSR) - Body ground Y - Body ground Rear door RH lock position switch input Rear door RH lock Pulse generation

      If the result is not as specified, the main body ECU (driver side junction block assembly) may be malfunctioning.