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


  1. INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (BODY ECU)

    A01BCA0E01

    1. Disconnect the 13B, 13C, 13E, 13G 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 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 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
      13C-4 (IG) - Body ground B - Body ground Ignition power supply Engine switch off → On (IG) 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
      H7-4 (LSWD) - Body ground W - Body ground Front door lock detection switch RH signal Front door lock RH lock → Unlock 10 kΩ or higher → Below 1 Ω

    3. Reconnect the 13B, 13C, 13E, 13G 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* → Below 1 V

      • Pulse generation* → 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* → Below 1 V

      • Pulse generation* → 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* → Below 1 V

      • Pulse generation* → 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 LH 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 RH signal Driver side door closed → Open

      • 11 to 14 V* → Below 1 V

      • Pulse generation* → Below 1 V
      H7-6 (HAZ) - Body ground W - Body ground Hazard warning light signal Hazard warning signal switch off → On 11 to 14 V → Below 1 V
      H7-7 (RDA) - Body ground W - Body ground Signal input to certification ECU (smart key ECU assembly)

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. All doors locked

      		 11 to 14 V

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter subassembly unlock switch pressed

      		 Pulse generation
      H7-8 (PRG) - Body ground B - Body ground Signal output to certification ECU (smart key ECU assembly)

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. All doors locked

      		 11 to 14 V

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter subassembly unlock switch pressed

      		 Pulse generation

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

  2. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A01BE4XE04

    1. Disconnect the B75 certification ECU (smart key ECU assembly) connector.

    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
      B75-1 (+B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      B75-10 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the B75 certification ECU (smart key ECU assembly) connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      B75-2 (BZR) - B75-10 (E) B - W-B Wireless door lock buzzer signal Wireless door lock buzzer off Below 1 V
      Wireless door lock buzzer on Pulse generation
      B75-20 (IG1D) - B75-10 (E) B - W-B IG Power supply Engine switch off → On (IG) Below 1 V → 9 to 14 V
      B75-21 (ACCD) - B75-10 (E) R - W-B ACC Power supply Engine switch off → On (ACC) Below 1 V → 9 to 14 V
      B76-13 (RDA3) - Body ground W - Body ground Signal output to instrument panel junction block assembly (body ECU)

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. All doors locked

      		 11 to 14 V

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter subassembly unlock switch pressed

      		 Pulse generation
      B76-38 (PRG3) - Body ground B - Body ground Signal input to instrument panel junction block assembly (body ECU)

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. All doors locked

      		 11 to 14 V

        Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter subassembly unlock switch pressed

      		 Pulse generation