THEFT DETERRENT SYSTEM(w/ Entry and Start System) TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A01X0WFE03

    1. Disconnect the E29 and E30 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
      E29-1 (+B) - Body ground B - Body ground +B power supply Always 11 to 14 V
      E29-18 (IG) - Body ground B - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 Ω
      E29-17 (E) - 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 E29 and E30 ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E29-2 (IND) - Body ground V - Body ground Security indicator signal Security indicator illuminates (illuminates only for 60 sec. in alarm sounding state (blinking when system in armed state)) 6 to 11 V
      E30-20 (SH-) - Body ground*1 LG - Body ground Security horn signal Security horn not sounding (theft deterrent system in alarm sounding state) 11 to 14 V
      Security horn sounding (theft deterrent system in alarm sounding state) 0.5 to 4 V
      E30-24 (HSW) - Body ground W - Body ground Engine hood courtesy switch signal Engine hood closed 10 kΩ or higher
      Engine hood open Below 1 Ω
      E30-7 (SSCL) - Body ground*2 L - Body ground Theft warning siren signal Theft warning siren sounding (theft warning system in alarm sounding state) Below 2 V
      Theft warning siren not sounding (theft warning system in alarm sounding state) 4.5 to 14 V
      E30-4 (IOUT) - Body ground*3 P - Body ground Intrusion sensor signal input No moving object detected 9 to 14 V
      Moving object detected during arming preparation state or armed state Pulse generation
      E30-5 (SSW1) - Body ground*3 Y - Body ground Intrusion sensor cancel switch signal Intrusion sensor cancel switch on Below 1.5 V
      Intrusion sensor cancel switch off 4.5 to 14 V
      E30-21 (CSIF) - Body ground*3 W - Body ground Tilt sensor signal input Vehicle tilt not detected 9 to 14 V
      Vehicle tilt detected during arming preparation state or armed state Pulse generation
      E30-23 (GBS) - Body ground*4 V - Body ground Glass breakage sensor signal Glass breakage sensor normal Below 2 V
      Glass breakage sensor malfunctioning 4.5 to 14 V

      Tech Tips

      *1: w/ Security Horn

      *2: w/ Theft Warning Siren

      *3: w/ Intrusion Sensor

      *4: w/ Glass Breakage Sensor

  2. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

    A01X6GUE04

    1. Disconnect the 2A, 2B, 2D and E3 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
      2A-1 (ALTB) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      2B-20 (BATB) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      2D-1 (IG) - Body ground G - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      2D-8 (ACC) - Body ground GR - Body ground ACC power supply Engine switch on (ACC) 11 to 14 V
      Engine switch off Below 1 V
      2D-62 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      E3-1 (GND3) - Body ground BR - 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 2A, 2B, 2D and E3 ECU connectors.

    4. Measure the voltage of the connectors.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E1-24 (DCTY) - Body ground

      L - Body ground*1

      P - Body ground*2

      		 Driver side door courtesy switch input Driver side door open Below 1 V
      Engine switch off, and driver side door courtesy switch off Pulse generation (see waveform 1 or 2)
      E2-21 (PCTY) - Body ground

      P - Body ground*1, *3

      Y - Body ground*1, *4

      L - Body ground*2

      		 Front passenger side door courtesy switch input Front passenger side door open Below 1 V
      Engine switch off, and passenger side door courtesy switch off Pulse generation (see waveform 3 or 4)
      2C-2 (LCTY) - Body ground W - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      Engine switch off, and rear LH side door courtesy switch off Pulse generation (see waveform 5 or 6)
      E2-7 (RCTY) - Body ground G - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V
      Engine switch off, and rear RH side door courtesy switch off Pulse generation (see waveform 7 or 8)
      E2-25 (BCTY) - Body ground W - Body ground Back door courtesy light switch input Back door open Below 1 V
      Engine switch off, and back door closed Pulse generation (see waveform 9 or 10)
      2D-3 (ACT+) - Body ground L - Body ground Driver side door lock motor lock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      E1-5 (ACTD) - Body ground B - Body ground Driver side door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      2D-3 (ACT+) - Body ground L - Body ground Front passenger side door lock motor lock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      2D-2 (ACT-) - Body ground B - Body ground Front passenger side door lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      2D-3 (ACT+) - Body ground L - Body ground Rear door LH lock motor lock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      2D-2 (ACT-) - Body ground B - Body ground Rear door LH lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      2D-3 (ACT+) - Body ground L - Body ground Rear door RH lock motor lock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      2D-2 (ACT-) - Body ground B - Body ground Rear door RH lock motor unlock drive output Master switch (door control switch) or driver side door key cylinder off Below 1 V
      Master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      E1-10 (UL3) - Body ground

      Y - Body ground*1

      L - Body ground*2

      		 Driver side door lock key switch input Driver side door key cylinder unlock Below 1 V
      Engine switch off, all doors closed and driver side door key cylinder neutral position Pulse generation (see waveform 11 or 12)
      2D-53 (L2) - Body ground LG - Body ground Driver side door lock key switch input Driver side door key cylinder lock Below 1 V
      Engine switch off, all doors closed and driver side door key cylinder neutral position Pulse generation (see waveform 13 or 14)
      E1-9 (LSWD) - Body ground

      BE - Body ground*3

      BR - Body ground*4

      		 Driver side door lock position switch input Driver side door unlock Below 1 V
      Engine switch off, all doors closed and driver side door lock Pulse generation (see waveform 15 or 16)
      E2-27 (LSWP) - Body ground

      Y - Body ground*1

      BE - Body ground*2

      		 Passenger side door lock position switch input Passenger side door unlock Below 1 V
      Engine switch off, all doors closed and passenger side door lock Pulse generation (see waveform 17 or 18)
      2C-1 (LSWL) - Body ground

      BE - Body ground*3

      BR - Body ground*4

      		 Rear door LH lock position switch input Rear door LH unlock Below 1 V
      Engine switch off, all doors closed and rear door LH lock Pulse generation (see waveform 19 or 20)
      E2-5 (LSWR) - Body ground

      BE - Body ground*3

      BR - Body ground*4

      		 Rear door RH lock position switch input Rear door RH unlock Below 1 V
      Engine switch off, all doors closed and rear door RH lock Pulse generation (see waveform 21 or 22)
      E1-26 (BDSU) - Body ground L - Body ground Back door opener switch input Back door lock opener switch off Below 1 V
      Back door lock opener switch on Pulse generation (see waveform 23 or 24)

      Tech Tips


      • *1: for LHD

      • *2: for RHD

      • *3: Model code except: GRJ200L-GNANKC, URJ202L-GNTEKC

      • *4: Model code: GRJ200L-GNANKC, URJ202L-GNTEKC

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

    5. A01X4QKE15

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) E1-24 (DCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and driver side door courtesy switch off
    6. A01X68XE14

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) E1-24 (DCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and driver side door courtesy switch off
    7. A01X3K9E01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference)
      Item Content
      Terminal No. (Symbol) E2-21 (PCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and passenger side door courtesy switch off
    8. A01X50JE01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference)
      Item Content
      Terminal No. (Symbol) E2-21 (PCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and passenger side door courtesy switch off
    9. A01X4QKE16

      Using an oscilloscope, check waveform 5.

      Waveform 5 (Reference)
      Item Content
      Terminal No. (Symbol) 2C-2 (LCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear LH side door courtesy switch off
    10. A01X68XE15

      Using an oscilloscope, check waveform 6.

      Waveform 6 (Reference)
      Item Content
      Terminal No. (Symbol) 2C-2 (LCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear LH side door courtesy switch off
    11. A01X4QKE17

      Using an oscilloscope, check waveform 7.

      Waveform 7 (Reference)
      Item Content
      Terminal No. (Symbol) E2-7 (RCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear RH side door courtesy switch off
    12. A01X68XE16

      Using an oscilloscope, check waveform 8.

      Waveform 8 (Reference)
      Item Content
      Terminal No. (Symbol) E2-7 (RCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and rear RH side door courtesy switch off
    13. A01X4QKE18

      Using an oscilloscope, check waveform 9.

      Waveform 9 (Reference)
      Item Content
      Terminal No. (Symbol) E2-25 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and back door closed
    14. A01X68XE14

      Using an oscilloscope, check waveform 10.

      Waveform 10 (Reference)
      Item Content
      Terminal No. (Symbol) E2-25 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, and back door closed
    15. A01X3K9E01

      Using an oscilloscope, check waveform 11.

      Waveform 11 (Reference)
      Item Content
      Terminal No. (Symbol) E1-10 (UL3) - 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
    16. A01X50JE01

      Using an oscilloscope, check waveform 12.

      Waveform 12 (Reference)
      Item Content
      Terminal No. (Symbol) E1-10 (UL3) - 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
    17. A01X4QKE15

      Using an oscilloscope, check waveform 13.

      Waveform 13 (Reference)
      Item Content
      Terminal No. (Symbol) 2D-53 (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
    18. A01X68XE14

      Using an oscilloscope, check waveform 14.

      Waveform 14 (Reference)
      Item Content
      Terminal No. (Symbol) 2D-53 (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
    19. A01X4QKE15

      Using an oscilloscope, check waveform 15.

      Waveform 15 (Reference)
      Item Content
      Terminal No. (Symbol) E1-9 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door lock
    20. A01X68XE14

      Using an oscilloscope, check waveform 16.

      Waveform 16 (Reference)
      Item Content
      Terminal No. (Symbol) E1-9 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and driver side door lock
    21. A01X4QKE19

      Using an oscilloscope, check waveform 17.

      Waveform 17 (Reference)
      Item Content
      Terminal No. (Symbol) E2-27 (LSWP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and passenger side door lock
    22. A01X68XE14

      Using an oscilloscope, check waveform 18.

      Waveform 18 (Reference)
      Item Content
      Terminal No. (Symbol) E2-27 (LSWP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and passenger side door lock
    23. A01X3K9E01

      Using an oscilloscope, check waveform 19.

      Waveform 19 (Reference)
      Item Content
      Terminal No. (Symbol) 2C-1 (LSWL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door LH lock
    24. A01X50JE01

      Using an oscilloscope, check waveform 20.

      Waveform 20 (Reference)
      Item Content
      Terminal No. (Symbol) 2C-1 (LSWL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door LH lock
    25. A01X4QKE15

      Using an oscilloscope, check waveform 21.

      Waveform 21 (Reference)
      Item Content
      Terminal No. (Symbol) E2-5 (LSWR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door RH lock
    26. A01X68XE14

      Using an oscilloscope, check waveform 22.

      Waveform 22 (Reference)
      Item Content
      Terminal No. (Symbol) E2-5 (LSWR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and rear door RH lock
    27. A01X3K9E01

      Using an oscilloscope, check waveform 23.

      Waveform 23 (Reference)
      Item Content
      Terminal No. (Symbol) E1-26 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door opener switch on
    28. A01X50JE01

      Using an oscilloscope, check waveform 24.

      Waveform 24 (Reference)
      Item Content
      Terminal No. (Symbol) E1-26 (BDSU) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Engine switch off, all doors closed and back door opener switch on