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


  1. CHECK CERTIFICATION ECU


    1. Disconnect the D54 ECU connector.

      A004R0ME02

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D54-1 (+B) - D54-15 (E) R - W-B +B power supply Always 11 to 14 V
      D54-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D54-16 (IG) - D54-15 (E) L - W-B IG power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V
      D54-17 (CUTB) - D54-15 (E) W - W-B +B power supply Always 11 to 14 V

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

    3. Reconnect the D54 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
      D54-3 (CLG1) - D54-15 (E) R - W-B Door electrical key oscillator (for driver side) sensor signal Engine switch off, all doors closed, key not in cabin and transmitter lock switch not pressed → pressed No pulse generation → Pulse generation
      D54-4 (CG1B) - D54-15 (E) G - W-B Door electrical key oscillator (for driver side) sensor signal Engine switch off, all doors closed, key not in cabin and transmitter lock switch not pressed → pressed No pulse generation → Pulse generation
      D54-5 (CLG2) - D54-15 (E) W - W-B Door electrical key oscillator (for passenger side) sensor signal Engine switch off, all doors closed, key not in cabin and transmitter lock switch not pressed → pressed No pulse generation → Pulse generation
      D54-6 (CG2B) - D54-15 (E) P - W-B Door electrical key oscillator (for passenger side) sensor signal Engine switch off, all doors closed, key not in cabin and transmitter lock switch not pressed → pressed No pulse generation → Pulse generation
      D54-7 (CLG5) - D54-15 (E) B - W-B Indoor electrical key oscillator (front floor) sensor signal Engine switch off, all doors closed, key not in cabin and lock sensor off → on No pulse generation → Pulse generation
      D54-8 (CG5B) - D54-15 (E) W - W-B Indoor electrical key oscillator (front floor) sensor signal Engine switch off, all doors closed, key not in cabin and lock sensor off → on No pulse generation → Pulse generation
      D54-18 (TSW1) - D54-15 (E) B - W-B Entry lock sensor (for driver side) signal Engine switch off, all doors closed and lock sensor off → on Pulse generation → Below 2 V
      D54-19 (TSW2) - D54-15 (E) BR - W-B Entry lock sensor (for passenger side) signal Engine switch off, all doors closed and lock sensor off → on Pulse generation → Below 2 V
      D54-20 (SEN1) - D54-15 (E) R - 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
      D54-21 (SEN2) - D54-15 (E) L - 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
      D54-26 (CLG7) - D54-15 (E) BR - W-B Indoor electrical key oscillator (inside luggage) sensor signal Engine switch off, all doors closed, key not in cabin and lock sensor off → on No pulse generation → Pulse generation
      D54-27 (CG7B) - D54-15 (E) W - W-B Indoor electrical key oscillator (inside luggage) sensor signal Engine switch off, all doors closed, key not in cabin and lock sensor off → on No pulse generation → Pulse generation
      D54-24 (CLG6) - D54-15 (E) G - W-B Indoor electrical key oscillator (rear floor) sensor signal Engine switch off, all doors closed, key not in cabin and lock sensor off → on No pulse generation → Pulse generation
      D54-25 (CG6B) - D54-15 (E) R - W-B Indoor electrical key oscillator (rear floor) sensor signal Engine switch off, all doors closed, key not in cabin and lock sensor off → on No pulse generation → Pulse generation
      D54-32 (POS1) - D54-15 (E) V - W-B Entry unlock sensor (for driver side) output signal Engine switch off → on (IG) 9 to 14 V → Below 2 V
      D54-33 (POS2) - D54-15 (E) R - W-B Entry unlock sensor (for passenger side) output signal Engine switch off → on (IG) 9 to 14 V → Below 2 V
      D59-5 (RCO) - D54-15 (E) V - W-B Entry door control receiver power source Engine switch off, all doors closed and transmitter switch not pressed → pressed Below 1 V → 4.5 to 5.5 V
      D59-15 (RDA) - D54-15 (E) Y - W-B Entry door control receiver data input signal Engine switch off 11 to 14 V pulse generation at regular intervals
      D59-16 (RSSI) - D54-15 (E) R - W-B Entry door control receiver electric wave existence signal All doors locked, all doors closed and transmitter switch not pressed → pressed 11 to 14 V → Below 2 V
      D59-19 (CLG8) - D54-15 (E) V - W-B Outside electrical key oscillator (outside luggage) sensor signal Engine switch off, all doors closed and luggage compartment door*1 or back door*2 open switch off → on No pulse generation → Pulse generation
      D59-20 (CG8B) - D54-15 (E) W - W-B Outside electrical key oscillator (outside luggage) sensor signal Engine switch off, all doors closed and back door open switch or luggage compartment door open switch off → on No pulse generation → Pulse generation
      D54-22 (TSW5) - Body ground V - Body ground Luggage compartment door*1 or back door*2 open switch input Luggage compartment door*1 or back door*2 open switch off → on Pulse generation → Below 1 V
      D54-23 (TSW6) - Body ground R - Body ground Luggage compartment door*1 or back door*2 lock switch input Luggage compartment door*1 or back door*2 lock switch off → on Pulse generation → Below 1 V

      • *1: for Sedan

      • *2: for Wagon

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

  2. CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

    A004TMTE03

    1. Disconnect the D79, D80, DB, DE and DG ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D79-4 (BATB) - Body ground BR - Body ground Battery power supply Always 11 to 14 V
      DG-1 (ALTB) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      DB-30 (BECU) - Body ground W - Body ground Power supply Always 11 to 14 V
      DE-17 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      D80-4 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the D79, D80, DB, DE and DG ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition

      DA-21 (DCTY)*1 - Body ground

      DC-6 (DCTY)*2 - Body ground

      W*1 - Body ground

      SB*2 - Body ground

      		 Driver side door courtesy light switch input Driver side door open Below 1 V
      Engine switch off and driver side door courtesy light switch off 11 to 14 V

      DE-20 (PCTY)*1 - Body ground

      DA-24 (PCTY)*2 - Body ground

      Y*1 - Body ground

      W*2 - Body ground

      		 Front passenger side door courtesy light switch input Front passenger side door open Below 1 V
      Engine switch off and passenger side door courtesy light switch off 11 to 14 V
      D79-8 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch LH input Rear door LH open Below 1 V
      Engine switch off and rear door courtesy light switch LH off 11 to 14 V
      DE-19 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch RH input Rear door RH open Below 1 V
      Engine switch off and rear door courtesy light switch RH off 11 to 14 V

      DA-7 (LGCY) - Body ground*3

      DA-7 (BCTY) - Body ground*4

      		 LG - Body ground Luggage compartment door*3 or back door*4 courtesy light switch input Luggage compartment door*3 or back door*4 open Below 1 V
      Engine switch off and luggage compartment door*3 or back door*4 closed 11 to 14 V
      DH-7 (L2) - Body ground SB - Body ground Driver side door lock key switch input Driver side door key cylinder lock position Below 1 V
      Engine switch off, all doors closed and driver side door key cylinder neutral position

      Pulse generation

      (see waveform 1 or 2)
      D79-25 (LSWD) - Body ground GR - Body ground Driver side door lock position switch input Driver side door unlocked Below 1 V
      Engine switch off, all doors closed and driver side door locked

      Pulse generation

      (see waveform 3 or 4)
      D79-10 (LWSP) - Body ground LG - Body ground Front passenger side door lock position switch input Front passenger side door unlocked Below 1 V
      Engine switch off, all doors closed and passenger side door locked

      Pulse generation

      (see waveform 5 or 6)
      D81-10 (LSR) - Body ground Y - Body ground Rear door lock position switch input Rear door unlocked Below 1 V
      Engine switch off, all doors closed and rear door locked

      Pulse generation

      (see waveform 7 or 8)
      D79-12 (BDSU) - Body ground V - Body ground Luggage compartment door*3 or back door*4 opener switch input Luggage compartment door*3 or back door*4 opener switch off Below 1 V
      Engine switch off, all doors closed and luggage compartment door*3 or back door*4 opener switch on Pulse generation (see waveform 9 or 10)

      • *1: for LHD

      • *2: for RHD

      • *3: for Sedan

      • *4: for Wagon

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

    5. A004Q5XE01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) DH-7 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door key cylinder neutral position
    6. A004NQ5E01

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) DH-7 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door key cylinder neutral position
    7. A004Q5XE01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference)
      Item Content
      Terminal No. (Symbol) D79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door locked
    8. A004NQ5E01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference)
      Item Content
      Terminal No. (Symbol) D79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door locked
    9. A004Q5XE01

      Using an oscilloscope, check waveform 5.

      Waveform 5 (Reference)
      Item Content
      Terminal No. (Symbol) D79-10 (LWSP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and passenger side door locked
    10. A004NQ5E01

      Using an oscilloscope, check waveform 6.

      Waveform 6 (Reference)
      Item Content
      Terminal No. (Symbol) D79-10 (LWSP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and passenger side door locked
    11. A004Q5XE01

      Using an oscilloscope, check waveform 7.

      Waveform 7 (Reference)
      Item Content
      Terminal No. (Symbol) D81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door locked
    12. A004NQ5E01

      Using an oscilloscope, check waveform 8.

      Waveform 8 (Reference)
      Item Content
      Terminal No. (Symbol) D81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door locked
    13. A004O5AE01

      Using an oscilloscope, check waveform 9.

      Waveform 9 (Reference)
      Item Content
      Terminal No. (Symbol) D79-12 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and luggage compartment door*3 or back door*4 opener switch on
    14. A004SNLE01

      Using an oscilloscope, check waveform 10.

      Waveform 10 (Reference)
      Item Content
      Terminal No. (Symbol) D79-12 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and luggage compartment door*3 or back door*4 opener switch on