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

  1. CHECK ENGINE SWITCH

    B271001N09

    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

      Engine switch off, brake pedal*1,*2 or clutch pedal*3 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

      Engine switch off, brake pedal*1,*2 or clutch pedal*3 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

      Engine switch off, brake pedal*1,*2 or clutch pedal*3 not depressed, 30 seconds or more elapsed after driver door opened and then closed

      Below 1 V

      -

      • *1: for CVT

      • *2: for Multi-Mode Manual Transaxle

      • *3: for Manual Transaxle

    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 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

        Tip:

        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 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)

      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 engine switch activated)

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

      Pulse generation

      (See waveform 3)

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

      Tip:

      *: Remove the key battery before performing this inspection.

    3. Using an oscilloscope, check the waveform.

      Tip:

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

      1. B051052N18

        Waveform 1 (Reference)

        Table 1. Measurement Condition

        Item

        Content

        Tester Connection

        E36-7 (TXCT) - E36-6 (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. B251418C11

        *a

        Key held near engine switch

        Waveform 2 (Reference)

        Table 2. Measurement Condition

        Item

        Content

        Tester Connection

        E36-8 (CODE) - E36-6 (AGND)

        Tool Setting

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

        Condition

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

        *: Remove the key battery before performing this inspection.

      3. B216007N05

        Waveform 3 (Reference)

        Table 3. Measurement Condition

        Item

        Content

        Tester Connection

        E36-10 (VC5) - E36-6 (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)

    B264892N39

    1. Disconnect the E33 certification ECU (smart 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

      E33-2 (+B) - E33-11 (E)

      Input

      L- W-B

      +B power supply

      Always

      11 to 14 V

      -

      E33-10 (CUTB) - E33-11 (E)

      Input

      LG - W-B

      Stand-by power

      Always

      11 to 14 V

      -

      E33-11 (E) - Body ground

      -

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      -

    3. Reconnect the E33 certification ECU (smart key ECU assembly) connector.

    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

      E35-5 (IG) - E33-11 (E)

      Input

      GR - W-B

      Ignition power supply

      Engine switch off → on (IG)

      Below 1 V → 11 to 14 V

      Ignition Switch

      E35-18 (IND) - E33-11 (E)

      Output

      Y - W-B

      Security indicator output

      Engine switch off → on (IG)

      Pulse generation

      → Below 2 V

      -

      E35-9 (TXCT) - E35-24 (AGND)

      Output

      L - BR

      Signal output to transponder key amplifier

      Engine switch off, brake pedal*1,*2 or clutch pedal*3 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

      E35-7 (CODE) - E35-24 (AGND)

      Input

      P - BR

      Signal input from transponder key amplifier

      Engine switch off, brake pedal*1,*2 or clutch pedal*3 not depressed, 30 seconds or more elapsed after driver door opened and then closed

      Below 1 V

      E35-1 (VC5) - E35-24 (AGND)

      Output

      W - BR

      Transponder key amplifier power supply

      Engine switch off, brake pedal*1,*2 or clutch pedal*3 not depressed, 30 seconds or more elapsed after driver door opened and then closed

      Below 1 V

      E35-24 (AGND) - Body ground

      -

      BR - Body ground

      Transponder key amplifier ground

      Always

      Below 1 Ω

      • *1: for CVT

      • *2: for Multi-Mode Manual Transaxle

      • *3: for Manual Transaxle

    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

      E35-9 (TXCT) - E35-24 (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 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

      E35-7 (CODE) - E35-24 (AGND)

      Input

      P - BR

      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)

      E35-1 (VC5) - E35-24 (AGND)

      Output

      W - BR

      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)

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

      Tip:

      *: Remove the key battery before performing this inspection.

    6. Using an oscilloscope, check the waveform.

      Tip:

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

      1. B051052N19

        Waveform 1 (Reference)

        Table 4. Measurement Condition

        Item

        Content

        Tester Connection

        E35-9 (TXCT) - E35-24 (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. B251418C11

        *a

        Key held near engine switch

        Waveform 2 (Reference)

        Table 5. Measurement Condition

        Item

        Content

        Tester Connection

        E35-7 (CODE) - E35-24 (AGND)

        Tool Setting

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

        Condition

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

        *: Remove the key battery before performing this inspection.

      3. B216007N06

        Waveform 3 (Reference)

        Table 6. Measurement Condition

        Item

        Content

        Tester Connection

        E35-1 (VC5) - E35-24 (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 STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

    B118684N25

    1. Measure the voltage resistance and check for pulses 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

      E37-1 (GND) - Body ground

      -

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      -

      E37-3 (IGE) - E37-1 (GND)

      Input

      P - 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 or N*2

      • Key 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

      E37-4 (SLP1) - E37-1 (GND)

      Output

      G - W-B

      Steering lock bar position signal (signal output from steering unlock sensor)

      Steering locked → unlocked*1

      11 to 14 V → Below 1.2 V

      • Push Start Error

      • Sensor Value

      E37-6 (IG2) - E37-1 (GND)

      Input

      GR - 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

      • Ignition Switch

      E37-7 (B) - Body ground

      Output

      L - Body ground

      Constant power supply

      Always

      11 to 14 V

      B2788

      • *1: for CVT

      • *2: for Multi-Mode Manual Transaxle

      If the result is not as specified, the steering lock ECU (steering lock actuator assembly) may be malfunctioning.

      Tip:

      *1: The steering locks when any door is opened with the shift lever in P*1 or N*2 and the engine switch off. The steering unlocks when the engine switch is turned on (ACC).

      • *1: for CVT

      • *2: for Multi-Mode Manual Transaxle

    2. Using an oscilloscope, check the waveform.

      Tip:

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

      1. C259594C03

        *a

        Steering lock motor not operating

        *b

        Steering lock motor operating

        Waveform 1 (Reference)

        Table 7. Measurement Condition

        Item

        Content

        Tester Connection

        E37-3 (IGE) - E37-1 (GND)

        Tool Setting

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

        Condition

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

        • Shift lever in P*1 or N*2

        • Key carried, engine switch turned on (IG), steering unlocked, and then engine switch turned off

        • *1: for CVT

        • *2: for Multi-Mode Manual Transaxle

  4. CHECK ID CODE BOX (IMMOBILISER CODE ECU)

    B278917N11

    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

      Always

      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

      LG - BR

      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)

      • B2799

      • B279A

      • Engine Start Request

      • EFI Code Receive

      E87-4 (EFIO) - E87-5 (GND)

      Output

      P - BR

      EFI communication output

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

      Engine switch off

      Below 1 V

      E87-4 (EFIO) - E87-5 (GND)

      Output

      P - BR

      EFI communication output

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

      Engine 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.

      Tip:

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

      1. Waveform 1 (Reference)

        B325134C03

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 8. 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 engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected

      2. Waveform 2 (Reference)

        B333259C02

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 9. Measurement Condition

        Item

        Content

        Tester Connection

        E87-4 (EFIO) - E87-5 (GND)

        Tool Setting

        2 V/DIV., 500 ms./DIV.

        Condition

        Engine switch on (IG)

  5. CHECK ECM (for 1NR-FE or 1ZR-FAE)

    B318518N06

    Terminal No. (Symbol)

    Input/Output

    Wiring Color

    Terminal Description

    Condition

    Specified Condition

    Related Data List Item/DTC

    B31-16 (E1) - Body ground

    -

    BR - Body ground

    Ground

    Always

    Below 1 Ω

    -

    A50-1 (BATT) - B31-16 (E1)

    Input

    P - BR

    +B power supply

    Always

    11 to 14 V

    -

    A50-2 (+B) - B31-16 (E1)

    Input

    B - BR

    +B power supply

    Engine switch on (IG)

    11 to 14 V

    -

    A50-3 (+B2) - B31-16 (E1)

    Input

    B - BR

    +B power supply

    Engine switch on (IG)

    11 to 14 V

    -

    A50-29 (IMO) - B31-16 (E1)

    Input

    LG - BR

    ID code box (immobiliser code ECU) communication input

    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)

    -

    A50-28 (IMI) - B31-16 (E1)

    Output

    P - BR

    ID code box (immobiliser code ECU) communication output

    Engine switch off

    Below 1 V

    -

    A50-28 (IMI) - B31-16 (E1)

    Output

    P - BR

    ID code box (immobiliser code ECU) communication output

    Engine switch on (IG)

    Pulse generation

    (See waveform 2)

    -

    1. Using an oscilloscope, check the waveform.

      Tip:

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

      1. Waveform 1 (Reference)

        B325134C03

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 10. Measurement Condition

        Item

        Content

        Tester Connection

        A50-29 (IMO) - B31-16 (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)

        B333259C02

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 11. Measurement Condition

        Item

        Content

        Tester Connection

        A50-28 (IMI) - B31-16 (E1)

        Tool Setting

        2 V/DIV., 500 ms./DIV.

        Condition

        Engine switch on (IG)

  6. CHECK ECM (for 1ND-TV)

    A157743N01

    Terminal No. (Symbol)

    Input/Output

    Wiring Color

    Terminal Description

    Condition

    Specified Condition

    Related Data List Item/DTC

    A101-2 (E1) - Body ground

    -

    W-B - Body ground

    Ground

    Always

    Below 1 Ω

    -

    A101-23 (BATT) - A101-2 (E1)

    Input

    W - W-B

    +B power supply

    Always

    11 to 14 V

    -

    A101-1 (+B) - A101-2 (E1)

    Input

    B - W-B

    +B power supply

    Engine switch on (IG)

    11 to 14 V

    -

    A101-61 (+B2) - A101-2 (E1)

    Input

    B - W-B

    +B power supply

    Engine switch on (IG)

    11 to 14 V

    -

    A101-78 (IMO) - A101-2 (E1)

    Input

    LG - W-B

    ID code box (immobiliser code ECU) communication input

    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)

    -

    A101-77 (IMI) - A101-2 (E1)

    Output

    P - W-B

    ID code box (immobiliser code ECU) communication output

    Engine switch off

    Below 1 V

    -

    A101-77 (IMI) - A101-2 (E1)

    Output

    P - W-B

    ID code box (immobiliser code ECU) communication output

    Engine switch on (IG)

    Pulse generation

    (See waveform 2)

    -

    1. Using an oscilloscope, check the waveform.

      Tip:

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

      1. Waveform 1 (Reference)

        B325134C03

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 12. Measurement Condition

        Item

        Content

        Tester Connection

        A101-78 (IMO) - A101-2 (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)

        B333259C02

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 13. Measurement Condition

        Item

        Content

        Tester Connection

        A101-77 (IMI) - A101-2 (E1)

        Tool Setting

        2 V/DIV., 500 ms./DIV.

        Condition

        Engine switch on (IG)

  7. CHECK ECM (for 1AD-FTV)

    A194498N04

    Terminal No. (Symbol)

    Input/Output

    Wiring Color

    Terminal Description

    Condition

    Specified Condition

    Related Data List Item/DTC

    B164-109 (E1) - Body ground

    -

    BR - Body ground

    Ground

    Always

    Below 1 Ω

    -

    A118-2 (BATT) - B164-109 (E1)

    Input

    W - BR

    +B power supply

    Always

    11 to 14 V

    -

    A118-1 (+B) - B164-109 (E1)

    Input

    B - BR

    +B power supply

    Engine switch on (IG)

    11 to 14 V

    -

    A118-20 (+B2) - B164-109 (E1)

    Input

    B - BR

    +B power supply

    Engine switch on (IG)

    11 to 14 V

    -

    A118-15 (IMO) - B164-109 (E1)

    Input

    LG - BR

    ID code box (immobiliser code ECU) communication input

    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)

    -

    A118-16 (IMI) - B164-109 (E1)

    Output

    P - BR

    ID code box (immobiliser code ECU) communication output

    Engine switch off

    Below 1 V

    -

    A118-16 (IMI) - B164-109 (E1)

    Output

    P - BR

    ID code box (immobiliser code ECU) communication output

    Engine switch on (IG)

    Pulse generation

    (See waveform 2)

    -

    1. Using an oscilloscope, check the waveform.

      Tip:

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

      1. Waveform 1 (Reference)

        B325134C03

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 14. Measurement Condition

        Item

        Content

        Tester Connection

        A118-15 (IMO) - B164-109 (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)

        B333259C02

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 15. Measurement Condition

        Item

        Content

        Tester Connection

        A118-16 (IMI) - B164-109 (E1)

        Tool Setting

        2 V/DIV., 500 ms./DIV.

        Condition

        Engine switch on (IG)