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


  1. CHECK ENGINE SWITCH

    B001H2JN23

    1. Measure the voltage and resistance 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
      G206-6 (AGND) - Body ground - GR - Body ground Transponder key amplifier ground Always Below 1 Ω -
      G206-7 (TXCT) - G206-6 (AGND) Input W - GR Immobiliser communication input Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
      G206-8 (CODE) - G206-6 (AGND) Output V - GR Immobiliser communication output Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
      G206-10 (VC5) - G206-6 (AGND) Input P - GR Transponder key amplifier power supply Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -

      • *1: for Automatic Transmission

      • *2: for Manual Transmission

    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
      G206-7 (TXCT) - G206-6 (AGND) Input W - GR

      Signal input from certification ECU (smart key ECU assembly)

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

      		 Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

      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
      G206-8 (CODE) - G206-6 (AGND) Output V - GR

      Signal output to certification ECU (smart key ECU assembly)

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

      		 Engine switch off, engine switch pressed with key held near engine switch*

      Pulse generation

      (See waveform 2)
      G206-10 (VC5) - G206-6 (AGND) Input P - GR

      Transponder key amplifier power supply

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

      		 Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

      Pulse generation

      (See waveform 3)

      Tech Tips

      *: Remove the transmitter battery before performing this inspection.

    3. Using an oscilloscope, check the waveform.

      Note

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


      1. B001HSNN18

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G206-7 (TXCT) - G206-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key not in cabin, within 30 seconds after engine switch pressed
      2. B001FHWC10
        *a Waveform
        *b Waveform (detail)

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G206-8 (CODE) - G206-6 (AGND)
        Tool Setting

        • Waveform

          2 V/DIV., 20 ms./DIV.

        • Waveform (detail)

          2 V/DIV., 100 μs./DIV.
        Condition Engine switch off, engine switch pressed with key held near engine switch*

        Tech Tips

        *: Remove the transmitter battery before performing this inspection.

      3. B001FBGN05

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G206-10 (VC5) - G206-6 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B001DXGC01

    1. Disconnect the G215 certification ECU (smart key ECU assembly) connector.

    2. Measure the voltage and resistance 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
      G215-10 (+B) - G215-11 (E) Input V - W-B +B power supply Always 11 to 14 V -
      G215-11 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -

    3. Reconnect the G215 certification ECU (smart key ECU assembly) connector.

    4. Measure the voltage and resistance 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
      G215-14 (TXCT) - G215-12 (AGND) Output W - GR Signal output to transponder key amplifier Engine switch off, brake pedal*1 or clutch pedal*2 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
      G215-13 (CODE) - G215-12 (AGND) Input V - GR Signal input from transponder key amplifier Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
      G215-15 (VC5) - G215-12 (AGND) Output P - GR Transponder key amplifier power supply Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
      G215-12 (AGND) - Body ground - GR - Body ground Transponder key amplifier ground Always Below 1 Ω
      G215-19 (IND) - G215-11 (E) Output G - W-B Security indicator output Engine switch off → on (IG) Pulse generation → Below 2 V -

      • *1: for Automatic Transmission

      • *2: for Manual Transmission

    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
      G215-14 (TXCT) - G215-12 (AGND) Output W - GR

      Signal output to transponder key amplifier

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

      		 Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

      Pulse generation

      (See waveform 1)

      • BCC Malfunction

      • Abnormal Status

      • Different Encrypt Code

      • Different Serial Number

      • Frame Error

      • Response
      G215-13 (CODE) - G215-12 (AGND) Input V - GR

      Signal input from transponder key amplifier

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

      		 Engine switch off, engine switch pressed with key held near engine switch*

      Pulse generation

      (See waveform 2)
      G215-15 (VC5) - G215-12 (AGND) Output P - GR

      Transponder key amplifier power supply

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

      		 Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

      Pulse generation

      (See waveform 3)

      Tech Tips

      *: Remove the transmitter battery before performing this inspection.

    6. Using an oscilloscope, check the waveform.

      Note

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


      1. B001HSNN19

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G215-14 (TXCT) - G215-12 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, key not in cabin, within 30 seconds after engine switch pressed
      2. B001FHWC10
        *a Waveform
        *b Waveform (detail)

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G215-13 (CODE) - G215-12 (AGND)
        Tool Setting

        • Waveform

          2 V/DIV., 20 ms./DIV.

        • Waveform (detail)

          2 V/DIV., 100 μs./DIV.
        Condition Engine switch off, engine switch pressed with key held near engine switch*

        Tech Tips

        *: Remove the transmitter battery before performing this inspection.

      3. B001FBGN06

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G215-15 (VC5) - G215-12 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Engine switch off, key not in cabin, within 30 seconds after engine switch pressed

  3. CHECK ID CODE BOX (IMMOBILISER CODE ECU)

    B001F33N15

    1. Disconnect the G207 ID code box (immobiliser code ECU) connector.

    2. Measure the voltage and resistance 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
      G207-1 (+B) - Body ground Input V - Body ground +B power supply Always 11 to 14 V B2789
      G207-5 (GND) - Body ground - W-B - Body ground Ground Always Below 1 Ω B2789

    3. Reconnect the G207 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
      G207-3 (EFII) - G207-5 (GND) Input SB - W-B

      EFI communication input

      (Signal input from ECM to ID code box (immobiliser code ECU))

      		 Engine switch off 11 to 14 V

      • B2799

      • B279A

      • EFI Code Receive

      • Engine Start Request
      G207-4 (EFIO) - G207-5 (GND) Output W - W-B

      EFI communication output

      (Signal output from ID code box (immobiliser code ECU) to ECM)

      		 Engine switch off Below 1 V
      G207-3 (EFII) - G207-5 (GND) Input SB - W-B

      EFI communication input

      (Signal input from ECM to ID code box (immobiliser code ECU))

      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      Pulse generation

      (See waveform 1)
      G207-4 (EFIO) - G207-5 (GND) Output W - W-B

      EFI communication output

      (Signal output from ID code box (immobiliser code ECU) to ECM)

      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      Pulse generation

      (See waveform 2)

    5. Using an oscilloscope, check the waveform.

      Note

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


      1. Waveform 1 (Reference)

        B001F2EC03
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection G207-3 (EFII) - G207-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      2. Waveform 2 (Reference)

        B001HWFC02
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection G207-4 (EFIO) - G207-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

  4. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)

    B001DWTN15

    1. Measure the voltage and resistance 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
      G35-1 (GND) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      G35-3 (IGE) - G35-1 (GND) Input W - W-B Steering lock motor operation permission signal (motor operation permission signal supplied by certification ECU (smart key ECU assembly))

      Steering lock motor operates when both conditions met, and then door opened:


      • Shift lever in P*1

      • Electrical key transmitter sub-assembly carried, engine switch turned on (IG), steering unlocked, and then engine switch turned off

      Pulse generation

      (See waveform 1)

      • Power Supply Short

      • Unlock Request Receive

      • Lock Request Receive
      G35-4 (SLP1) - G35-1 (GND) Output SB - W-B Steering lock bar position signal (signal output from steering unlock sensor) Steering locked → unlocked*2 11 to 14 V → Below 1.5 V Sensor Value
      G35-6 (IG2) - G35-1 (GND) Input W - W-B IG signal (IG2 power supply input for steering lock motor) Engine switch off → on (IG) Below 1 V → 11 to 14 V B2788
      G35-7 (B) - Body ground Input G - Body ground Constant power supply Always 11 to 14 V B2788

      • *1: for Automatic Transmission

      Tech Tips

      *2: The steering locks when any door is opened with the shift lever in P (for Automatic Transmission) and the engine switch off. The steering unlocks when the engine switch is turned on (ACC).

    2. Using an oscilloscope, check the waveform.

      Note

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


      1. B001E5IC03
        *a Steering lock motor not operating
        *b Steering lock motor operating

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection G35-3 (IGE) - G35-1 (GND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition

        Steering lock motor operates when both conditions met, and then door opened:


        • Shift lever in P*

        • Electrical key transmitter sub-assembly carried, engine switch turned on (IG), steering unlocked, and then engine switch turned off

        • *: for Automatic Transmission

  5. CHECK ECM (for 1GR-FE)

    B001FZBE32

    1. Measure the resistance, 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
      C36-12 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -

      G56-8 (IMO) - C36-12 (E1)*1

      G56-20 (IMO) - C36-12 (E1)*2

      		 Output SB - BR Certification ECU (smart key ECU assembly) communication output Engine switch off 11 to 14 V E/G Start Permission
      Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

      Pulse generation

      (See waveform 1)

      		 E/G Start Permission

      G56-10 (IMI) - C36-12 (E1)*1

      G56-14 (IMI) - C36-12 (E1)*2

      		 Input W - BR Certification ECU (smart key ECU assembly) communication input Engine switch off Below 1 V E/G Start Permission
      Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

      Pulse generation

      (See waveform 2)

      		 E/G Start Permission

      • *1: for Automatic Transmission

      • *2: for Manual Transmission

    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)

        B001IG5C03
        *a Approximately 160 ms *b Approximately 270 ms
        Tester Connection

        G56-8 (IMO) - C36-12 (E1)*1

        G56-20 (IMO) - C36-12 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

        • *1: for Automatic Transmission

        • *2: for Manual Transmission

      2. Waveform 2 (Reference)

        B001HWFC05
        *a Approximately 160 ms *b Approximately 270 ms
        Tester Connection

        G56-10 (IMI) - C36-12 (E1)*1

        G56-14 (IMI) - C36-12 (E1)*2
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

        • *1: for Automatic Transmission

        • *2: for Manual Transmission

  6. CHECK ECM (for 2TR-FE)

    B001FPXC23
    *A for Automatic Transmission *B for Manual Transmission

    1. Measure the resistance, 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
      C153-3 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      G181-9 (IMO) - C153-3 (E1) Output SB - BR Certification ECU (smart key ECU assembly) communication output Engine switch off 11 to 14 V E/G Start Permission
      Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

      Pulse generation

      (See waveform 1)

      		 E/G Start Permission
      G181-10 (IMI) - C153-3 (E1) Input W - BR Certification ECU (smart key ECU assembly) communication input Engine switch off Below 1 V E/G Start Permission
      Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

      Pulse generation

      (See waveform 2)

      		 E/G Start Permission

    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)

        B001IG5C03
        *a Approximately 160 ms *b Approximately 270 ms
        Tester Connection G181-9 (IMO) - C153-3 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

      2. Waveform 2 (Reference)

        B001HWFC05
        *a Approximately 160 ms *b Approximately 270 ms
        Tester Connection G181-10 (IMI) - C153-3 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of engine switch first being turned on (IG) after cable disconnected and reconnected to negative (-) battery terminal

  7. CHECK ECM (for 1KD-FTV)

    B001F1FE03

    1. Measure the resistance, 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
      C93-1 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      G58-29 (IMO) - C93-1 (E1) Output SB - BR Certification ECU (smart key ECU assembly) communication output Engine switch off 11 to 14 V -
      Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      Pulse generation

      (See waveform 1)

      		 -
      G58-28 (IMI) - C93-1 (E1) Input W - BR Certification ECU (smart key ECU assembly) communication input Engine switch off Below 1 V -
      Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      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)

        B001F2EC03
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection G58-29 (IMO) - C93-1 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      2. Waveform 2 (Reference)

        B001HWFC02
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection G58-28 (IMI) - C93-1 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

  8. CHECK ECM (for 1GD-FTV)

    B001G20E48

    1. Measure the resistance, 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
      C152-1 (E1) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      G185-17 (IMO) - C152-1 (E1) Output SB - W-B Certification ECU (smart key ECU assembly) communication output Engine switch off 11 to 14 V -
      Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      Pulse generation

      (See waveform 1)

      		 -
      G185-16 (IMI) - C152-1 (E1) Input W - W-B Certification ECU (smart key ECU assembly) communication input Engine switch off Below 1 V -
      Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      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)

        B001F2EC03
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection G185-17 (IMO) - C152-1 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      2. Waveform 2 (Reference)

        B001HWFC02
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection G185-16 (IMI) - C152-1 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected