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


  1. CHECK TRANSPONDER KEY ECU ASSEMBLY

    A01X1XKE02

    1. Disconnect the E96 transponder key ECU assembly connector.

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      E96-1 (+B) - E96-5 (GND) Input W - BR Battery Always 11 to 14 V +B
      E96-2 (IG) - E96-5 (GND) Input P - BR Ignition switch signal Ignition switch off Below 1 V IG SW
      Ignition switch ON 11 to 14 V
      E96-3 (KSW) - E96-5 (GND) Input G - BR Unlock warning switch signal No key in ignition key cylinder 10 kΩ or higher Key SW/B2780
      Key in ignition key cylinder Below 1 Ω
      E96-5 (GND) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      E96-7 (CTY) - Body ground*1 Input V - Body ground Door courtesy switch LH signal Driver side door closed 10 kΩ or higher -
      Driver side door open Below 1 Ω

      • *: for LHD

    3. Reconnect the E96 transponder key ECU assembly connector.

    4. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      E96-8 (IND) - E96-5 (GND) Output V - BR Security indicator signal No key in ignition key cylinder, or 20 sec. elapsed after turning ignition switch to ACC or off (immobiliser system set) Pulse generation Immobiliser
      Key in ignition key cylinder (immobiliser system unset) Below 1 V
      E96-9 (D) - E96-5 (GND) Input/Output R - BR DLC3 communication Without communication Below 1 V -
      During communication Pulse generation
      E96-4 (ANT1) - E96-5 (GND) Input/Output R - BR Transponder key amplifier power source No key in ignition key cylinder 4 to 6 V -
      Within 3 seconds of inserting key into ignition key cylinder

      Pulse generation

      (See waveform 1)
      E96-15 (ANT2) - E96-5 (GND) Input/Output L - BR Transponder key amplifier communication signal No key in ignition key cylinder 4 to 6 V -
      Within 3 seconds of inserting key into ignition key cylinder

      Pulse generation

      (See waveform 2)
      E96-12 (EFII) - E96-5 (GND) Output W - BR ECM input signal Ignition switch off 11 to 14 V -
      Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      Pulse generation

      (See waveform 3)

      		 -
      E96-13 (EFIO) - E96-5 (GND) Input P - BR ECM output signal Ignition switch off Below 1 V -
      Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      Pulse generation

      (See waveform 4)

    5. Using an oscilloscope, check the waveform.


      1. Waveform 1 (Reference)

        A01WZ4RE01
        Tester Connection E96-4 (ANT1) - E96-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of inserting key into ignition key cylinder

      2. Waveform 2 (Reference)

        A01WYV8E01
        Tester Connection E96-15 (ANT2) - E96-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of inserting key into ignition key cylinder

      3. Waveform 3 (Reference)

        B001XUKE02
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Tester Connection E96-12 (EFII) - E96-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      4. Waveform 4 (Reference)

        A01WZNPE02
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Tester Connection E96-13 (EFIO) - E96-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Ignition switch ON

  2. CHECK ECM (for 1GR-FE)

    A01X9OKE01

    1. for LHD:


      1. Measure the voltage and check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
        C45-81 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
        A38-1 (BATT) - C45-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A38-2 (+B2) - C45-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A38-3 (+B) - C45-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A38-29 (IMO) - C45-81 (E1) Input W - BR Transponder key ECU assembly communication input Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication input Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 1)

        		 -
        A38-40 (IMI) - C45-81 (E1) Output P - BR Transponder key ECU assembly communication output Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication output Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 2)

        		 -

    2. for RHD:


      1. Measure the voltage and check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
        C46-81 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
        A52-1 (BATT) - C46-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A52-2 (+B2) - C46-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A52-3 (+B) - C46-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A52-29 (IMO) - C46-81 (E1) Input W - BR Transponder key ECU assembly communication input Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication input Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 1)

        		 -
        A52-40 (IMI) - C46-81 (E1) Output P - BR Transponder key ECU assembly communication output Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication output Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 2)

        		 -

    3. Inspect using an oscilloscope.


      1. Waveform 1 (Reference)

        B001XUKE02
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection

        A38-29 (IMO) - C45-81 (E1)*1

        A52-29 (IMO) - C46-81 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected

        • *1: for LHD

        • *2: for RHD

      2. Waveform 2 (Reference)

        A01WZNPE02
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection

        A38-40 (IMI) - C45-81 (E1)*1

        A52-40 (IMI) - C46-81 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected

        • *1: for LHD

        • *2: for RHD

  3. CHECK ECM (for 1VD-FTV)

    A01X9OKE01

    1. for LHD:


      1. Measure the voltage and check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
        C45-81 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
        A38-1 (BATT) - C45-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A38-3 (+B) - C45-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A38-29 (IMO) - C45-81 (E1) Input W - BR Transponder key ECU assembly communication input Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication input Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 1)

        		 -
        A38-40 (IMI) - C45-81 (E1) Output P - BR Transponder key ECU assembly communication output Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication output Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 2)

        		 -

    2. for RHD:


      1. Measure the voltage and check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
        C46-81 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
        A52-1 (BATT) - C46-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A52-3 (+B) - C46-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A52-29 (IMO) - C46-81 (E1) Input W - BR Transponder key ECU assembly communication input Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication input Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 1)

        		 -
        A52-40 (IMI) - C46-81 (E1) Output P - BR Transponder key ECU assembly communication output Ignition switch off 11 to 14 V -
        Transponder key ECU assembly communication output Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected.

        Pulse generation

        (See waveform 2)

        		 -

    3. Inspect using an oscilloscope.


      1. Waveform 1 (Reference)

        B001XUKE02
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection

        A38-29 (IMO) - C45-81 (E1)*1

        A52-29 (IMO) - C46-81 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected

        • *1: for LHD

        • *2: for RHD

      2. Waveform 2 (Reference)

        A01WZNPE02
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection

        A38-40 (IMI) - C45-81 (E1)*1

        A52-40 (IMI) - C46-81 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected

        • *1: for LHD

        • *2: for RHD