ENGINE IMMOBILISER SYSTEM(w/ Entry and Start System) TERMINALS OF ECU


  1. CHECK ENGINE SWITCH

    A01XMGUE02

    1. Disconnect the G36 switch connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G36-8 (AGND) - Body ground GR - Body ground Ground Always Below 1 Ω
      G36-5 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the G36 switch connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G36-9 (TXCT) - G36-8 (AGND) W - GR Key code output signal Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed Below 1 V
      G36-9 (TXCT) - G36-8 (AGND) W - GR Key code output signal Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

      Pulse generation

      (see waveform 1)
      G36-10 (CODE) - G36-8 (AGND) V - GR Demodulated signal of key code data Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed Below 1 V
      G36-10 (CODE) - G36-8 (AGND) V - GR Demodulated signal of key code data Engine switch off, key held against engine switch and engine switch pushed*3

      Pulse generation

      (see waveform 2)
      G36-11 (SWIL) - G36-5 (GND) B - W-B Illumination signal Light control switch off → tail Below 2 V → 9 to 14 V
      G36-14 (VC5) - G36-8 (AGND) P - GR Power supply Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed Below 1 V
      G36-14 (VC5) - G36-8 (AGND) P - GR Power supply Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

      Pulse generation

      (see waveform 3)

      • *1: for Automatic Transmission

      • *2: for Manual Transmission

      Tech Tips

      *3: Remove the key battery before performing this inspection.

    5. Inspect using an oscilloscope.


      1. B001HSNE49

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G36-9 (TXCT) - G36-8 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed
      2. A01XHPDE26

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G36-10 (CODE) - G36-8 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key held against engine switch and engine switch pushed*

        Tech Tips

        *: Remove the key battery before performing this inspection.

      3. A01XMB9E01

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G36-14 (VC5) - G36-8 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

  2. CHECK CERTIFICATION ECU

    A01XEZTE04

    1. Disconnect the G38 ECU 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
      G38-1 (+B) - G38-15 (E) V - W-B +B power supply Always 11 to 14 V
      G38-17 (CUTB) - G38-15 (E) L - W-B +B power supply Always 11 to 14 V
      G38-16 (IG) - G38-15 (E) W - W-B Ignition power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V
      G38-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the G38 ECU connector.

    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
      G38-2 (IND) - G38-15 (E) G - W-B Security indicator output Engine switch off → on (IG)

      Pulse generation

      → Below 2 V
      G38-11 (SWIL) - G38-36 (AGND) B - GR Illumination signal Light control switch off Below 2 V
      G38-11 (SWIL) - G38-36 (AGND) B - GR Illumination signal Light control switch tail 9 to 14 V
      G38-12 (TXCT) - G38-36 (AGND) W - GR Engine switch TXCT output Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed Below 1 V
      G38-12 (TXCT) - G38-36 (AGND) W - GR Engine switch TXCT output Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

      Pulse generation

      (see waveform 1)
      G38-13 (CODE) - G38-36 (AGND) V - GR Engine switch CODE input Key not in cabin Below 1 V
      G38-13 (CODE) - G38-36 (AGND) V - GR Engine switch CODE input Engine switch off, key held against engine switch and engine switch pushed*3

      Pulse generation

      (see waveform 2)
      G38-28 (VC5) - G38-36 (AGND) P - GR Engine switch power supply Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed Below 1 V
      G38-28 (VC5) - G38-36 (AGND) P - GR Engine switch power supply Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

      Pulse generation

      (see waveform 3)
      G38-36 (AGND) - Body ground GR - Body ground Engine switch ground Always Below 1 Ω

      • *1: for Automatic Transmission

      • *2: for Manual Transmission

      Tech Tips

      *3: Remove the key battery before performing this inspection.

    5. Inspect using an oscilloscope.


      1. A01XDMWE50

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G38-12 (TXCT) - G38-36 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed
      2. A01XHPDE27

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G38-13 (CODE) - G38-36 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key held against engine switch and engine switch pushed*

        Tech Tips

        *: Remove the key battery before performing this inspection.

      3. A01XMB9E01

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G38-28 (VC5) - G38-36 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

  3. CHECK ID CODE BOX

    A01XEGME02

    1. Disconnect the G37 box 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
      G37-1 (+B) - G37-8 (GND) V - W-B +B power supply Always 11 to 14 V
      G37-8 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the G37 box connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G37-5 (EFII) - G37-8 (GND) SB - W-B ECM input signal Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Pulse generation

      (see waveform 1)
      G37-6 (EFIO) - G37-8 (GND) W - W-B ECM output signal Engine switch off → on (IG)

      Below 1 V → Pulse generation

      (see waveform 2)

    5. Inspect using an oscilloscope.


      1. A01XJVOE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G37-5 (EFII) - G37-8 (GND)
        Tool Setting 5 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
      2. A01XK8ME01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G37-6 (EFIO) - G37-8 (GND)
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Engine switch on (IG)

  4. CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

    A01XK0LE02

    1. Disconnect the G35 ECU connector.

    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
      G35-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G35-6 (IG2) - G35-1 (GND) W - W-B IG2 signal input Engine switch off → on (IG) Below 1 V → 11 to 14 V
      G35-7 (B) - Body ground G - Body ground Power source Always 11 to 14 V

  5. CHECK POWER MANAGEMENT CONTROL ECU

    A01XDXEE02

    1. Disconnect the G51 ECU connector.

    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
      G51-1 (AM22) - Body ground B - Body ground Battery power Always 11 to 14 V
      G51-2 (AM21) - Body ground B - Body ground Battery power Always 11 to 14 V
      G51-5 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G51-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

  6. CHECK ECM (for 1GR-FE)

    A01XL4HE04

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

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

      G56-8 (IMO) - Body ground*1

      G56-20 (IMO) - Body ground*2

      		 SB - Body ground ID code box output signal Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Pulse generation

      (see waveform 1)

      G56-10 (IMI) - Body ground*1

      G56-14 (IMI) - Body ground*2

      		 W - Body ground ID code box input signal Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Below 1 V → Pulse generation

      (see waveform 2)

      • *1: for Automatic Transmission

      • *2: for Manual Transmission

    2. Inspect using an oscilloscope.


      1. A01XJVOE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection

        G56-8 (IMO) - Body ground*1

        G56-20 (IMO) - Body ground*2
        Tool Setting 5 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

        • *1: for Automatic Transmission

        • *2: for Manual Transmission

      2. A01XK8ME01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection

        G56-10 (IMI) - Body ground*1

        G56-14 (IMI) - Body ground*2
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

        • *1: for Automatic Transmission

        • *2: for Manual Transmission

  7. CHECK ECM (for 2TR-FE)

    A01XJ9HE02

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G181-9 (IMO) - Body ground SB - Body ground ID code box output signal Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Pulse generation

      (see waveform 1)
      G181-10 (IMI) - Body ground W - Body ground ID code box input signal Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Below 1 V → Pulse generation

      (see waveform 2)

    2. Inspect using an oscilloscope.


      1. A01XJVOE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G181-9 (IMO) - Body ground
        Tool Setting 5 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
      2. A01XK8ME01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G181-10 (IMI) - Body ground
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

  8. CHECK ECM (for 1KD-FTV)

    A01XIIUE03

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G58-29 (IMO) - Body ground SB - Body ground ID code box output signal Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Pulse generation

      (see waveform 1)
      G58-28 (IMI) - Body ground W - Body ground ID code box input signal Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Below 1 V → Pulse generation

      (see waveform 2)

    2. Inspect using an oscilloscope.


      1. A01XJVOE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G58-29 (IMO) - Body ground
        Tool Setting 5 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
      2. A01XK8ME01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G58-28 (IMI) - Body ground
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

  9. CHECK ECM (for 1GD-FTV)

    A01XDJ4E02

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G185-17 (IMO) - Body ground SB - Body ground ID code box output signal Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Pulse generation

      (see waveform 1)
      G185-16 (IMI) - Body ground W - Body ground ID code box input signal Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

      Below 1 V → Pulse generation

      (see waveform 2)

    2. Inspect using an oscilloscope.


      1. A01XJVOE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G185-17 (IMO) - Body ground
        Tool Setting 5 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
      2. A01XK8ME01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G185-16 (IMI) - Body ground
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected