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


  1. CHECK TRANSPONDER KEY AMPLIFIER

    A01WZB2E02

    1. Measure the resistance and 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
      E95-7 (AGND) - Body ground - SB - Body ground Ground Always Below 1 Ω -
      E95-1 (VC5) - E95-7 (AGND) Input P - SB Transponder key amplifier power supply No key in ignition key cylinder Below 1 V -
      E95-4 (CODE) - E95-7 (AGND) Output V - SB Demodulated signal of key code data No key in ignition key cylinder Below 1 V -
      E95-5 (TXCT) - E95-7 (AGND) Input LG - SB Key code output signal No key in ignition key cylinder Below 1 V -

    2. 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
      E95-1 (VC5) - E95-7 (AGND) Input P - SB Transponder key amplifier power supply Key inserted in ignition key cylinder

      Pulse generation

      (See waveform 1)

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      (If immobiliser key code certification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above.)
      E95-4 (CODE) - E95-7 (AGND) Output V - SB Demodulated signal of key code data Key inserted in ignition key cylinder

      Pulse generation

      (See waveform 2)
      E95-5 (TXCT) - E95-7 (AGND) Input LG - SB Key code output signal Key inserted in ignition key cylinder

      Pulse generation

      (See waveform 3)

    3. Inspect using an oscilloscope.

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. A01X8NYE01

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E95-1 (VC5) - E95-7 (AGND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      2. A01X1ASE01

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E95-4 (CODE) - E95-7 (AGND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      3. A01X6HME02

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E95-5 (TXCT) - E95-7 (AGND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder

  2. CHECK TRANSPONDER KEY ECU ASSEMBLY

    A01X7VUE02

    1. Disconnect the E96 transponder key ECU assembly connector.

    2. Measure the resistance and voltage 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
      E96-16 (GND) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      E96-1 (+B) - E96-16 (GND) Input B - W-B Battery Always 11 to 14 V +B
      E96-2 (IG) - E96-16 (GND) Input B - W-B Ignition switch Ignition switch off Below 1 V IG SW
      Ignition switch ON 11 to 14 V
      E96-3 (KSW) - E96-16 (GND) Input G - W-B Unlock warning switch No key in ignition key cylinder 10 kΩ or higher Key SW/B2780
      Key inserted in ignition key cylinder Below 1 Ω

    3. Reconnect the E96 transponder key ECU connector.

    4. Measure the resistance and 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
      E96-14 (VC5) - E96-16 (GND) Input P - W-B Transponder key amplifier power supply No key in ignition key cylinder Below 1 V

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      (If immobiliser key code certification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above.)
      Key inserted in ignition key cylinder

      Pulse generation

      (See waveform 1)
      E96-4 (TXCT) - E96-16 (GND) Input LG - W-B Key code output signal No key in ignition key cylinder Below 1 V
      Key inserted in ignition key cylinder

      Pulse generation

      (See waveform 2)
      E96-15 (CODE) - E96-16 (GND) Output V - W-B Demodulated signal of key code data No key in ignition key cylinder Below 1 V
      Key inserted in ignition key cylinder

      Pulse generation

      (See waveform 3)
      E96-13 (EFIO) - E96-16 (GND) Input R - W-B ECM output signal Ignition switch off Below 1 V E/G Start Permission
      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 4)
      E96-12 (EFII) - E96-16 (GND) Output W - W-B ECM input signal 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 5)

      		 E/G Start Permission
      E96-9 (D) - E96-16 (GND) Input/Output R - W-B Diagnosis tester communication Always Pulse generation -
      E96-5 (AGND) - Body ground - SB - Body ground Transponder key amplifier ground Always Below 1 Ω -
      E96-8 (IND) - Body ground Output V - Body ground Security indicator signal No key in ignition key cylinder, or 20 sec. elapsed after turning the ignition switch to ACC or off (engine immobiliser system set) Pulse generation -
      Key in ignition key cylinder (engine immobiliser system unset) Below 1 V

    5. Inspect using an oscilloscope.

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


      1. A01X8NYE03

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E96-14 (VC5) - E96-16 (GND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      2. A01X6HME05

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E96-4 (TXCT) - E96-16 (GND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      3. A01X1ASE03

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E96-15 (CODE) - E96-16 (GND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder

      4. Waveform 4 (Reference)

        A01XA4JE11
        Text in Illustration
        *a Waveform A *b Waveform B
        *c Approximately 160 ms *d Approximately 510 ms
        *e Approximately 270 ms - -
        Measurement Condition
        Item Content
        Tester Connection E96-13 (EFIO) - E96-16 (GND)
        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

      5. Waveform 5 (Reference)

        A01X63TE13
        Text in Illustration
        *a Waveform A *b Waveform B
        *c Approximately 160 ms *d Approximately 510 ms
        *e Approximately 270 ms - -
        Measurement Condition
        Item Content
        Tester Connection E96-12 (EFII) - E96-16 (GND)
        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

  3. 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 -
        A38-20 (BATT) - C45-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A38-1 (+B2) - C45-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A38-2 (+B) - C45-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A38-10 (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)

        		 -
        A38-11 (IMI) - C45-81 (E1) Output R - 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 -
        A52-20 (BATT) - C46-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A52-1 (+B2) - C46-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A52-2 (+B) - C46-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A52-10 (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)

        		 -
        A52-11 (IMI) - C46-81 (E1) Output R - 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)

        A01X63TE06
        Text in Illustration
        *a Waveform A *b Waveform B
        *c Approximately 160 ms *d Approximately 510 ms
        *e Approximately 270 ms - -
        Measurement Condition
        Item Content
        Tester Connection

        A38-10 (IMO) - C45-81 (E1)*1

        A52-10 (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)

        A01XA4JE05
        Text in Illustration
        *a Waveform A *b Waveform B
        *c Approximately 160 ms *d Approximately 510 ms
        *e Approximately 270 ms - -
        Measurement Condition
        Item Content
        Tester Connection

        A38-11 (IMI) - C45-81 (E1)*1

        A52-11 (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

  4. 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 -
        A38-20 (BATT) - C45-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A38-2 (+B) - C45-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A38-10 (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)

        		 -
        A38-11 (IMI) - C45-81 (E1) Output R - 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 -
        A52-20 (BATT) - C46-81 (E1) Input L - BR +B power supply Always 11 to 14 V -
        A52-2 (+B) - C46-81 (E1) Input B - BR +B power supply Ignition switch ON 11 to 14 V -
        A52-10 (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)

        		 -
        A52-11 (IMI) - C46-81 (E1) Output R - 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)

        A01X63TE06
        Text in Illustration
        *a Waveform A *b Waveform B
        *c Approximately 160 ms *d Approximately 510 ms
        *e Approximately 270 ms - -
        Measurement Condition
        Item Content
        Tester Connection

        A38-10 (IMO) - C45-81 (E1)*1

        A52-10 (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)

        A01XA4JE05
        Text in Illustration
        *a Waveform A *b Waveform B
        *c Approximately 160 ms *d Approximately 510 ms
        *e Approximately 270 ms - -
        Measurement Condition
        Item Content
        Tester Connection

        A38-11 (IMI) - C45-81 (E1)*1

        A52-11 (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