THEFT DETERRENT SYSTEM TERMINALS OF ECU


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

    A002LNZE03

    1. Disconnect the H79, H80, DE, DG and DH 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
      H79-4 (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
      DH-12 (BECU) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      DE-28 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      H80-4 (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 H79, H80, DE, DG and DH ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      DC-6 (DCTY) - Body ground BR - Body ground Front door courtesy light switch RH input Driver side door open Below 1 V
      DC-6 (DCTY) - Body ground BR - Body ground Front door courtesy light switch RH input Driver side door closed 11 to 14 V
      DA-24 (PCTY) - Body ground W - Body ground Front door courtesy light switch LH input Front passenger side door open Below 1 V
      DA-24 (PCTY) - Body ground W - Body ground Front door courtesy light switch LH input Front passenger side door closed 11 to 14 V
      H79-8 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch LH input Rear door LH open Below 1 V
      H79-8 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch LH input Rear door LH closed 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
      DE-19 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch RH input Rear door RH closed 11 to 14 V
      DA-7 (BCTY) - Body ground LG - Body ground Back door courtesy light switch input Back door open Below 1 V
      DA-7 (BCTY) - Body ground LG - Body ground Back door courtesy light switch input Back door closed 11 to 14 V
      DH-7 (L2) - Body ground SB - Body ground Front door lock RH key switch input Front door lock key cylinder lock position Below 1 V
      DH-7 (L2) - Body ground SB - Body ground Front door lock RH key switch input Ignition switch off, all doors closed and front door lock key cylinder neutral position Pulse generation (see waveform 1 or 2)
      H79-25 (LSWD) - Body ground LG - Body ground Front door lock RH (door lock position switch) input Driver side door unlocked Below 1 V
      H79-25 (LSWD) - Body ground LG - Body ground Front door lock RH (door lock position switch) input Ignition switch off, all doors closed and driver side door locked Pulse generation (see waveform 3 or 4)
      H79-10 (LSWP) - Body ground LG - Body ground Front door lock LH (door lock position switch) input Front passenger side door unlocked Below 1 V
      H79-10 (LSWP) - Body ground LG - Body ground Front door lock LH (door lock position switch) input Ignition switch off, all doors closed and front passenger side door locked Pulse generation (see waveform 5 or 6)
      H81-10 (LSR) - Body ground Y - Body ground Rear door lock (door lock position switch) input Rear door unlocked Below 1 V
      H81-10 (LSR) - Body ground Y - Body ground Rear door lock (door lock position switch) input Ignition switch off, all doors closed and rear door locked Pulse generation (see waveform 7 or 8)
      DH-6 (UL2) - Body ground P - Body ground Front door lock RH (key-linked switch) input Front door lock key cylinder unlock position Below 1 V
      DH-6 (UL2) - Body ground P - Body ground Front door lock RH (key-linked switch) input Ignition switch off, all doors closed and front door lock key cylinder neutral position Pulse generation (see waveform 9 or 10)
      H79-15 (IND) - Body ground Y - Body ground Security indicator signal Security indicator illuminates (illuminates only for 30 (+/-5) seconds in alarm sounding state (blinking when system in armed state)) 3 to 6 V
      H80-6 (SSCL) - Body ground R - Body ground Theft warning siren (self power siren) signal Theft warning siren (self power siren) sounding (theft warning system in alarm sounding state) Pulse generation
      H80-6 (SSCL) - Body ground R - Body ground Theft warning siren (self power siren) signal Theft warning siren (self power siren) not sounding (theft warning system in armed state) Pulse generation
      H80-7 (ISIF) - Body ground*1 BE - Body ground Intrusion sensor signal input No moving object detected 6.5 to 14 V
      H80-7 (ISIF) - Body ground*1 BE - Body ground Intrusion sensor signal input Moving object detected during arming preparation state or armed state Pulse generation (see waveform 11)
      H80-8 (SSW1) - Body ground*1 Y - Body ground Intrusion sensor cancel switch signal Intrusion sensor cancel switch on Below 1.5 V
      H80-8 (SSW1) - Body ground*1 Y - Body ground Intrusion sensor cancel switch signal Intrusion sensor cancel switch off 4.5 to 14 V
      H81-8 (GBS) - Body ground*2 G - Body ground Glass breakage sensor signal Glass breakage sensor normal Below 2 V
      H81-11 (HCTY) - Body ground R - Body ground Engine hood courtesy switch Engine hood closed Below 1 Ω
      H81-11 (HCTY) - Body ground R - Body ground Engine hood courtesy switch Engine hood open 10 kΩ or higher

      • *1: w/ Intrusion Sensor

      • *2: w/ Glass Breakage Sensor

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

    5. A002MDGE01

      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 Ignition switch off, all doors closed and front door lock key cylinder neutral position
    6. A002PDDE01

      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 Ignition switch off, all doors closed and front door lock key cylinder neutral position
    7. A002MDGE01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference)
      Item Content
      Terminal No. (Symbol) H79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door locked
    8. A002PDDE01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference)
      Item Content
      Terminal No. (Symbol) H79-25 (LSWD) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door locked
    9. A002MDGE01

      Using an oscilloscope, check waveform 5.

      Waveform 5 (Reference)
      Item Content
      Terminal No. (Symbol) H79-10 (LSWP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and front passenger side door locked
    10. A002PDDE01

      Using an oscilloscope, check waveform 6.

      Waveform 6 (Reference)
      Item Content
      Terminal No. (Symbol) H79-10 (LSWP) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and front passenger side door locked
    11. A002MDGE01

      Using an oscilloscope, check waveform 7.

      Waveform 7 (Reference)
      Item Content
      Terminal No. (Symbol) H81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and rear door locked
    12. A002PDDE01

      Using an oscilloscope, check waveform 8.

      Waveform 8 (Reference)
      Item Content
      Terminal No. (Symbol) H81-10 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and rear door locked
    13. A002PC2E08

      Using an oscilloscope, check waveform 9.

      Waveform 9 (Reference)
      Item Content
      Terminal No. (Symbol) DH-6 (UL2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side key cylinder neutral position
    14. A002NCJE01

      Using an oscilloscope, check waveform 10.

      Waveform 10 (Reference)
      Item Content
      Terminal No. (Symbol) DH-6 (UL2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side key cylinder neutral position
    15. A002QTWE02

      Using an oscilloscope, check waveform 11.

      Waveform 11 (Reference)
      Item Content
      Terminal No. (Symbol) H80-7 (ISIF) - Body ground
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Moving object detected during arming preparation state or armed state