POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


  1. INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)

    A01BCA0E01

    1. Disconnect the 13B, 13C, 13E, 13G, 13H and H7 instrument panel junction block assembly (body ECU) connectors.

    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
      13B-3 (L2) - Body ground W - Body ground Door lock key switch signal Front RH door lock key switch off → On (unlock) 10 kΩ or higher → Below 1 Ω
      13B-4 (UL2) - Body ground Y - Body ground Door lock key switch signal Front RH door lock key switch off → On (lock) 10 kΩ or higher → Below 1 Ω
      13B-5 (UL1) - Body ground*1 Y - Body ground Door lock manual switch signal Driver side door control switch off → on (unlock) 10 kΩ or higher → Below 1 Ω
      13B-6 (L1) - Body ground*1 W - Body ground Door lock manual switch signal Driver side door control switch off → On (lock) 10 kΩ or higher → Below 1 Ω
      13B-21 (L2) - Body ground W - Body ground Door lock key switch signal Front LH door lock key switch off → On (unlock) 10 kΩ or higher → Below 1 Ω
      13B-22 (UL2) - Body ground Y - Body ground Door lock key switch signal Front LH door lock key switch off → On (lock) 10 kΩ or higher → Below 1 Ω
      13B-23 (L1) - Body ground*2 W - Body ground Door lock manual switch signal Driver side door control switch off → on (lock) 10 kΩ or higher → Below 1 Ω
      13B-24 (UL1) - Body ground*2 Y - Body ground Door lock manual switch signal Driver side door control switch off → On (unlock) 10 kΩ or higher → Below 1 Ω
      13C-4 (IG) - Body ground B - Body ground Ignition power supply Ignition switch off → ON Below 1 V → 11 to 14 V
      13E-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      13G-1 (BECU) - Body ground B-G - Body ground Battery power supply Always 11 to 14 V
      13H-6 (L1) - Body ground*3 W - Body ground Door lock manual switch signal Driver side door control switch off → On (lock) 10 kΩ or higher → Below 1 Ω
      13H-7 (UL1) - Body ground*3 Y - Body ground Door lock manual switch signal Driver side door control switch off → On (unlock) 10 kΩ or higher → Below 1 Ω
      13H-13 (KSW) - Body ground*4 Y - Body ground Unlock warning switch assembly signal No key in ignition key cylinder → Key in ignition key cylinder 10 kΩ or higher → Below 1 Ω
      H7-4 (LSWD) - Body ground W - Body ground Front door lock detection switch LH*5/RH*6 signal Front door lock LH*5/RH*5 lock → Unlock 10 kΩ or higher → Below 1 Ω

      • *1: w/ Power Window Control System (for RHD)

      • *2: w/ Power Window Control System (for LHD)

      • *3: w/o Power Window Control System

      • *4: w/o Smart Entry and Start System

      • *5: for LHD

      • *6: for RHD

    3. Reconnect the 13B, 13C, 13E, 13G, 13H and H7 instrument panel junction block assembly (body 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
      13A-10 (ACT+) - Body ground L - Body ground Back door lock motor drive signal Back door control switch off → On (lock) Below 1 V → 11 to 14 V → Below 1 V
      13A-18 (RRCY) - Body ground W - Body ground Rear door courtesy light switch assembly RH signal Rear door RH door closed → Open

      • 11 to 14 V*3 → Below 1 V

      • Pulse generation*3 → Below 1 V
      13A-24 (RRCY) - Body ground W - Body ground Back door courtesy light switch signal Back door door closed → Open

      • 11 to 14 V*3 → Below 1 V

      • Pulse generation*3 → Below 1 V
      13A-29 (ACT-) - Body ground R - Body ground Back door lock motor drive signal Back door control switch off → On (unlock) Below 1 V → 11 to 14 V → Below 1 V
      13A-30 (RRCY) - Body ground W - Body ground Rear door courtesy light switch assembly LH signal Rear door LH door closed → Open

      • 11 to 14 V*3 → Below 1 V

      • Pulse generation*3 → Below 1 V
      13B-17 (ACT+) - Body ground L - Body ground Front door lock motor LH/RH drive signal Door control switch off → On (lock) Below 1 V → 11 to 14 V → Below 1 V
      13B-35 (ACT-) - Body ground R - Body ground Front door lock motor LH/RH drive signal Door control switch off → On (unlock) Below 1 V → 11 to 14 V → Below 1 V
      13E-26 (ACT+) - Body ground L - Body ground Slide door lock motor LH/RH drive signal Slide door lock control switch off → On (lock) Below 1 V → 11 to 14 V → Below 1 V
      13E-27 (ACT-) - Body ground R - Body ground Slide door lock motor LH/RH drive signal Slide door lock control switch off → On (unlock) Below 1 V → 11 to 14 V → Below 1 V
      13E-10 (PCTY) - Body ground R - Body ground Front door courtesy light switch assembly RH*1/LH*2 signal Front passenger side door closed → Open

      • 11 to 14 V*3 → Below 1 V

      • Pulse generation*3 → Below 1 V
      13E-11 (DCTY) - Body ground G - Body ground Front door courtesy light switch assembly LH*1/RH*2 signal Driver side door closed → Open

      • 11 to 14 V*3 → Below 1 V

      • Pulse generation*3 → Below 1 V
      H7-1 (DBKL) - Body ground W - Body ground Front seat inner belt assembly LH*1/RH*2 signal Front seat inner belt assembly LH*1/RH*2 fastened→ Unfastened 11 to 14 V → Below 1 V

      • *1: for LHD

      • *2: for RHD

      • *3: The specified value changes depending on vehicle conditions.

  2. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Entry and Start System) Click here