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


  1. CHECK ENGINE SWITCH

    A01DR1IE23

    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

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

    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.

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

    5. Inspect using an oscilloscope.


      1. A01DQBEE14

        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. A01DOATE17

        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. A01DP4TE01

        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

    A01DO5ME30

    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

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

    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.

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

    5. Inspect using an oscilloscope.


      1. A01DQBEE01

        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. A01DOATE01

        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. A01DP4TE01

        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

    A01DPJYE26

    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

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

    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)

      If the result is not as specified, the ID code box may have a malfunction.

    5. Inspect using an oscilloscope.


      1. A01DPYJE01

        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. A01DONWE01

        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)

    A01DP1JE14

    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

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

  5. CHECK POWER MANAGEMENT CONTROL ECU

    A01DODUE10

    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

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

  6. CHECK ECM (for 1GR-FE)

    A01DQYBE06

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G56-20 (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)
      G56-14 (IMI) - Body ground W - Body ground ID code box input signal Engine switch off → on (IG)

      Below 1 V → Pulse generation

      (see waveform 2)

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

    2. Inspect using an oscilloscope.


      1. A01DPYJE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G56-20 (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. A01DONWE01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G56-14 (IMI) - Body ground
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Engine switch on (IG)

  7. CHECK ECM (for 2TR-FE)

    A01DQYBE08

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G60-32 (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)
      G60-31 (IMI) - Body ground W - Body ground ID code box input signal Engine switch off → on (IG)

      Below 1 V → Pulse generation

      (see waveform 2)

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

    2. Inspect using an oscilloscope.


      1. A01DPYJE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G60-32 (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. A01DONWE01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G60-31 (IMI) - Body ground
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Engine switch on (IG)

  8. CHECK ECM (for 1KD-FTV)

    A01DQYBE07

    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 → on (IG)

      Below 1 V → Pulse generation

      (see waveform 2)

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

    2. Inspect using an oscilloscope.


      1. A01DPYJE01

        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. A01DONWE01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G58-28 (IMI) - Body ground
        Tool Setting 10 V/DIV., 100 ms./DIV.
        Condition Engine switch on (IG)