IMMOBILISER SYSTEM TERMINALS OF ECU


  1. CHECK POWER SWITCH

    A00YO4VN09

    1. 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
      E36-6 (AGND) - Body ground - BR - Body ground Transponder key amplifier ground Always Below 1 Ω -
      E36-7 (TXCT) - E36-6 (AGND) Input L - BR Immobiliser communication input Power switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
      E36-8 (CODE) - E36-6 (AGND) Output P - BR Immobiliser communication output Power switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
      E36-10 (VC5) - E36-6 (AGND) Input W - BR Transponder key amplifier power supply Power switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed 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
      E36-7 (TXCT) - E36-6 (AGND) Input L - BR

      Signal input from certification ECU (smart key ECU assembly)

      (Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into power switch, and then transmitted by transponder key amplifier antenna as radio waves)

      		 Power switch off, key not in cabin, within 30 seconds of pressing power switch

      Pulse generation

      (See waveform 1)

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      • Frame Error

      • Response

        Tech Tips

        If immobiliser key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above
      E36-8 (CODE) - E36-6 (AGND) Output P - BR

      Signal output to certification ECU (smart key ECU assembly)

      (Radio waves from transponder key amplifier built into power switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly))

      		 Power switch off, power switch pressed with key held near power switch*

      Pulse generation

      (See waveform 2)
      E36-10 (VC5) - E36-6 (AGND) Input W - BR

      Transponder key amplifier power supply

      (Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into power switch activated)

      		 Power switch off, key not in cabin, within 30 seconds of pressing power switch

      Pulse generation

      (See waveform 3)

      If the result is not as specified, the power switch may be malfunctioning.

      Tech Tips

      *: Remove the transmitter battery before performing this inspection.

    3. Using an oscilloscope, check the waveform.

      Tech Tips

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


      1. A00YOX2N18

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E36-7 (TXCT) - E36-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Power switch off, key not in cabin, within 30 seconds of pressing power switch
      2. A00YPKDC11
        *a Key held near power switch

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E36-8 (CODE) - E36-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Power switch off, power switch pressed with key held near power switch*

        Tech Tips

        *: Remove the transmitter battery before performing this inspection.

      3. A00YNO5N05

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E36-10 (VC5) - E36-6 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Power switch off, key not in cabin, within 30 seconds of pressing power switch

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A00YMK9N29

    1. Disconnect the E116 and E117 certification ECU (smart key ECU assembly) connectors.

    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
      E116-5 (+B) - E117-1 (E) Input W- W-B +B power supply Power switch off 11 to 14 V -
      E116-4 (CUTB) - E117-1 (E) Input LG - W-B Stand-by power Power switch off 11 to 14 V -
      E117-1 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -

    3. Reconnect the E116 and E117 certification ECU (smart key ECU assembly) connectors.

    4. 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
      E116-16 (IG) - E117-1 (E) Input GR - W-B Ignition power supply Power switch off → on (IG) Below 1 V → 11 to 14 V Ignition Switch
      E117-8 (IND) - E117-1 (E) Output Y - W-B Security indicator output Power switch off → on (IG)

      Pulse generation

      → Below 2 V

      		 -
      E116-3 (TXCT) - E117-6 (AGND) Output L - BR Signal output to transponder key amplifier Power switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      • Frame Error

      • Response
      E116-13 (CODE) - E117-6 (AGND) Input P - BR Signal input from transponder key amplifier Power switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
      E116-9 (VC5) - E117-6 (AGND) Output W - BR Transponder key amplifier power supply Power switch off, brake pedal not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
      E117-6 (AGND) - Body ground - BR - Body ground Transponder key amplifier ground Always Below 1 Ω

    5. 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
      E116-3 (TXCT) - E117-6 (AGND) Output L - BR

      Signal output to transponder key amplifier

      (Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into power switch, and then transmitted by transponder key amplifier antenna as radio waves)

      		 Power switch off, key not in cabin, within 30 seconds of pressing power switch

      Pulse generation

      (See waveform 1)

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      • Frame Error

      • Response
      E116-13 (CODE) - E117-6 (AGND) Input P - BR

      Signal input from transponder key amplifier

      (Radio waves from transponder key amplifier built into power switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly))

      		 Power switch off, power switch pressed with key held near power switch*

      Pulse generation

      (See waveform 2)
      E116-9 (VC5) - E117-6 (AGND) Output W - BR

      Transponder key amplifier power supply

      (Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into power switch activated)

      		 Power switch off, key not in cabin, within 30 seconds of pressing power switch

      Pulse generation

      (See waveform 3)

      If the result is not as specified, the certification ECU (smart key ECU assembly) may be malfunctioning.

      Tech Tips

      *: Remove the transmitter battery before performing this inspection.

    6. Using an oscilloscope, check the waveform.

      Tech Tips

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


      1. A00YOX2N19

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E116-3 (TXCT) - E117-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Power switch off, key not in cabin, within 30 seconds of pressing power switch
      2. A00YPKDC11
        *a Key held near power switch

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E116-13 (CODE) - E117-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Power switch off, power switch pressed with key held near power switch*

        Tech Tips

        *: Remove the transmitter battery before performing this inspection.

      3. A00YNO5N06

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection E116-9 (VC5) - E117-6 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Power switch off, key not in cabin, within 30 seconds of pressing power switch

  3. CHECK TRANSMISSION CONTROL ECU ASSEMBLY

    A00YQ1NE11

    1. Disconnect the A131 and A132 ECU connectors.

    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 connectors disconnected.

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
      A132-1 (E1) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      A132-5 (E02) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      A132-6 (E01) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      A131-16 (+B) - Body ground Input V - Body ground +B power supply Power switch off 11 to 14 V -
      A131-15 (BATT) - Body ground Input W - Body ground +B power supply Power switch off 11 to 14 V -

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

  4. CHECK ID CODE BOX (IMMOBILISER CODE ECU)

    A00YPSJN11

    1. Disconnect the E87 ID code box (immobiliser code ECU) 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
      E87-1 (+B) - E87-5 (GND) Input W - BR +B power supply Power switch off 11 to 14 V B2789
      E87-5 (GND) - Body ground - BR - Body ground Ground Always Below 1 Ω B2789

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

    3. Reconnect the E87 ID code box (immobiliser code ECU) connector.

    4. 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
      E87-3 (EFII) - E87-5 (GND) Input L - BR

      EFI communication input

      (Signal input from power management control ECU to ID code box (immobiliser code ECU))

      		 Within 3 seconds of hybrid control system start or within 3 seconds of power switch being turned on (IG) after cable disconnected and reconnected to negative (-) auxiliary battery terminal

      Pulse generation

      (See waveform 1)

      • B2799

      • B279A

      • Engine Start Request

      • EFI Code Receive
      E87-4 (EFIO) - E87-5 (GND) Output R - BR

      EFI communication output

      (Signal output from ID code box (immobiliser code ECU) to power management control ECU)

      		 Power switch off Below 1 V
      E87-4 (EFIO) - E87-5 (GND) Output R - BR

      EFI communication output

      (Signal output from ID code box (immobiliser code ECU) to power management control ECU)

      		 Power switch on (IG)

      Pulse generation

      (See waveform 2)

      • If the result is not as specified, the ID code box (immobiliser code ECU) may be malfunctioning.

    5. Using an oscilloscope, check the waveform.

      Tech Tips

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


      1. Waveform 1 (Reference)

        A00YNM0C03
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection E87-3 (EFII) - E87-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of power switch being turned on (IG) after cable disconnected and reconnected to negative (-) auxiliary battery terminal

      2. Waveform 2 (Reference)

        A00YPCHC02
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection E87-4 (EFIO) - E87-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Power switch on (IG)

  5. CHECK POWER MANAGEMENT CONTROL ECU

    A00YNNYE11

    1. 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
      A129-2 (+B2) - E111-5 (E01) Input L - W-B Ignition power supply Power switch on (IG) 11 to 14 V -
      A130-5 (+B1) - E111-5 (E01) Input L - W-B Ignition power supply Power switch on (IG) 11 to 14 V -
      A130-6 (MREL) - E111-5 (E01) Input B - W-B Ignition power supply Power switch on (IG) 11 to 14 V -
      E111-1 (AM22) - E111-6 (E1) Input L - BR +B power supply Power switch off 11 to 14 V -
      E111-5 (E01) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      E111-6 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      E112-4 (E12) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      E112-5 (E02) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      E112-7 (AM21) - E111-6 (E1) Input L - BR +B power supply Power switch off 11 to 14 V -
      E112-20 (IMO) - E111-6 (E1) Input L - BR ID code box (immobiliser code ECU) communication input Power switch off 11 to 14 V -
      E112-20 (IMO) - E111-6 (E1) Input L - BR ID code box (immobiliser code ECU) communication input Within 3 seconds of hybrid control system start or within 3 seconds of power switch being turned on (IG) after cable disconnected and reconnected to negative (-) auxiliary battery terminal Pulse generation(See waveform 1) -
      E112-21 (IMI) - E111-6 (E1) Output R - BR ID code box (immobiliser code ECU) communication output Power switch off 11 to 14 V -
      E112-21 (IMI) - E111-6 (E1) Output R - BR ID code box (immobiliser code ECU) communication output Power switch on (IG) Pulse generation(See waveform 2) -

    2. Using an oscilloscope, check the waveform.

      Tech Tips

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


      1. Waveform 1 (Reference)

        A00YNM0C03
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection E112-20 (IMO) - E111-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of power switch being turned on (IG) after cable disconnected and reconnected to negative (-) auxiliary battery terminal

      2. Waveform 2 (Reference)

        A00YPCHC02
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection E112-21 (IMI) - E111-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Power switch on (IG)