ENTRY AND START SYSTEM (for Entry Function) TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU


    1. Disconnect the D34 certification ECU connector.

      A011B4AE02

    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.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D34-1 (+B) - D34-15 (E) B - W-B +B power supply Always 11 to 14 V
      D34-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D34-17 (CUTB) - D34-15 (E) W - W-B +B power supply Always 11 to 14 V

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

    3. Reconnect the D34 certification ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D34-3 (CLG1) - D34-15 (E) G - W-B Door electrical key oscillator (for driver side) sensor signal Engine switch off, all doors closed, key not in the cabin, and all doors locked with wireless door lock control No pulse generation → Pulse generation
      D34-4 (CG1B) - D34-15 (E) L - W-B Door electrical key oscillator (for driver side) sensor signal Engine switch off, all doors closed, key not in the cabin, and all doors locked with wireless door lock control No pulse generation → Pulse generation
      D34-5 (CLG2) - D34-15 (E) GR - W-B Door electrical key oscillator (for passenger side) sensor signal Engine switch off, all doors closed, key not in the cabin, and all doors locked with wireless door lock control No pulse generation → Pulse generation
      D34-6 (CG2B) - D34-15 (E) R - W-B Door electrical key oscillator (for passenger side) sensor signal Engine switch off, all doors closed, key not in the cabin, and all doors locked with wireless door lock control No pulse generation → Pulse generation
      D34-7 (CLG5) - D34-15 (E) P - W-B Indoor electrical key oscillator (front side) sensor signal Engine switch off, all doors closed, key not in the cabin, and lock sensor off → on No pulse generation → Pulse generation
      D34-8 (CG5B) - D34-15 (E) Y - W-B Indoor electrical key oscillator (front side) sensor signal Engine switch off, all doors closed, key not in the cabin, and door lock sensor off → on No pulse generation → Pulse generation
      D34-16 (IG) - D34-15 (E) V - W-B IG power supply Engine switch off →Engine switch on (IG) Below 1 V →11 to 14 V
      D34-18 (TSW1) - D34-15 (E) Y - W-B Entry lock sensor (for driver side) signal Engine switch off, all doors closed, and door lock sensor off → on Pulse generation → Below 2 V
      D34-19 (TSW2) - D34-15 (E) BR - W-B Entry lock sensor (for passenger side) signal Engine switch off, all doors closed, and door lock sensor off → on Pulse generation → Below 2 V
      D34-20 (SEN1) - D34-15 (E) B - W-B Entry unlock sensor (for driver side) detection signal Engine switch off, all doors locked, key not close enough to vehicle, and unlock sensor (driver side) off → on Pulse generation → Below 2 V
      D34-21 (SEN2) - D34-15 (E) SB - W-B Entry unlock sensor (for passenger side) detection signal Engine switch off, all doors locked, key not close enough to vehicle, and unlock sensor (passenger side) off → on Pulse generation → Below 2 V
      D34-26 (CLG7) - D34-15 (E) W - W-B Indoor electrical key oscillator (inside luggage) sensor signal Engine switch off, all doors closed, key is not in the cabin, and door lock sensor off → on No pulse generation → Pulse generation
      D34-27 (CG7B) - D34-15 (E) BR - W-B Indoor electrical key oscillator (inside luggage) sensor signal Engine switch off, all doors closed, key is not in the cabin, and door lock sensor off → on No pulse generation → Pulse generation
      D34-32 (POS1) - D34-15 (E) GR - W-B Entry unlock sensor (for driver side) output signal Engine switch off → on (IG) 9 to 14 V → Below 2 V
      D34-33 (POS2) - D34-15 (E) V - W-B Entry unlock sensor (for passenger side) output signal Engine switch off → on (IG) 9 to 14 V → Below 2 V
      D35-5 (RCO) - D34-15 (E) L - W-B Entry door control receiver power source Engine switch off, all doors closed, and electrical key switch on Below 1 V → 4.5 to 5.5 V
      D35-15 (RDA3) - D34-15 (E) LG - W-B Entry door control receiver data input signal Engine switch off 11 to 14 V pulse generation output at regular interval
      D35-16 (RSSI) - D34-15 (E) P - W-B 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
      D35-19 (CLG8) - D34-15 (E) V - W-B Outside electrical key oscillator (outside luggage) sensor signal Engine switch off, all doors closed, and back door open switch off → on No pulse generation → Pulse generation
      D35-20 (CG8B) - D34-15 (E) L - W-B Outside electrical key oscillator (outside luggage) sensor signal Engine switch off, all doors closed, and back door open switch off → on No pulse generation → Pulse generation
      D34-22 (TSW5) - Body ground G - Body ground Back door open switch input Back door open switch off → on Pulse generation → Below 1 V
      D34-23 (TSW6) - Body ground LG - Body ground Back door lock switch input Back door lock switch off → on Pulse generation → Below 1 V

      If the result is not as specified, the certification ECU may have a malfunction.

  2. CHECK MAIN BODY ECU, INSTRUMENT PANEL JUNCTION BLOCK


    1. Remove the main body ECU.

      A01179UE01
      Text in Illustration
      *1 Instrument Panel Junction Block
      A011B53E02
      Text in Illustration
      *1 Main Body ECU (w/ Theft Deterrent System)
      A0119MJE02
      Text in Illustration
      *1 Main Body ECU (w/o Theft Deterrent System)

    2. Disconnect the D42 main body ECU connector.

    3. 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
      3F-2 (FLCY) - Body ground - Front door courtesy light switch LH input Front door LH closed (off) → open (on) 10 kΩ or higher → Below 1 Ω
      3F-4 (FRCY) - Body ground - Front door courtesy light switch RH input Front door RH closed (off) → open (on) 10 kΩ or higher → Below 1 Ω
      3F-11 (GND1) - Body ground - Ground Always Below 1 Ω
      3F-29 (ACC) - Body ground - Ignition power supply (ACC signal) Engine switch on (ACC) → off 11 to 14 V → Below 1 V
      3F-30 (BECU) - Body ground - +B (power system signal system) power supply Always 11 to 14 V
      3F-31 (ALTB) - Body ground - +B (power system alternator system) power supply Always 11 to 14 V
      3F-32 (IG) - Body ground - Ignition power supply (IG signal) Engine switch on (IG) → off 11 to 14 V → Below 1 V
      D42-19 (BCTY) - Body ground V - Body ground Back door courtesy light switch input Back door closed (off) → open (on) 10 kΩ or higher → Below 1 Ω

      Tech Tips

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

    4. Reinstall the main body ECU.

    5. Reconnect the main body ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D42-7 (LSFL) - Body ground R - Body ground Front door unlock detection switch LH input Front door LH UNLOCK → LOCK Below 1 V → 11 to 14 V (or pulse generation)
      D42-11 (L2) - Body ground B - Body ground Driver door key-linked door lock input Driver door lock cylinder is turned neutral position → LOCK position with mechanical key 11 to 14 V (or pulse generation ) → Below 1 V
      D42-12 (UL2) - Body ground P - Body ground Driver door key-linked door unlock input Driver door lock cylinder is turned neutral position → UNLOCK position with mechanical key 11 to 14 V (or pulse generation ) → Below 1 V
      D42-18 (LSFR) - Body ground L - Body ground Front door unlock detection switch RH input Front door RH UNLOCK → LOCK Below 1 V → 11 to 14 V (or pulse generation)
      D42-19 (BCTY) - Body ground V - Body ground Back door courtesy light switch input Back door closed (off) → open (on) 11 to 14 V (or pulse generation ) → Below 1 V
      3E-8 (TR+) - Body ground B - Body ground Door lock motor UNLOCK drive output (Back door) Back door open switch off → on → off Below 1 V → 11 to 14 V → Below 1 V
      3E-24 (FLCY) - Body ground G - Body ground Front door courtesy light switch LH input Front door LH closed (off) → open (on) 11 to 14 V (or pulse generation ) → Below 1 V
      3E-35 (FRCY) - Body ground B - Body ground Front door courtesy light switch RH input Front door RH closed (off) → open (on) 11 to 14 V (or pulse generation ) → Below 1 V

      If the result is not as specified, the main body ECU may have a malfunction.