BLOCKING SYSTEM TERMINALS OF ECU

  1. CHECK TELEPHONE TRANSCEIVER ASSEMBLY

    1. F100694E21

      Disconnect the G58 telephone transceiver assembly connector.

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G58-6 (IG2) - G58-9 (E)

      SB - W-B

      Ignition power supply

      Ignition switch off

      Below 1 V

      G58-6 (IG2) - G58-9 (E)

      SB - W-B

      Ignition power supply

      Ignition switch ON

      9 to 16 V

      G58-12 (+B) - G58-9 (E)

      BR - W-B

      +B power supply

      Always

      9 to 16 V

      G58-9 (E) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

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

    3. Reconnect the G58 telephone transceiver assembly connector.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G58-1 (BLK1) - G58-9 (E)

      LG - W-B

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 communication input

      Ignition switch off

      11 to 14 V

      G58-1 (BLK1) - G58-9 (E)

      LG - W-B

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 communication input

      Check waveform 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 1)

      G58-2 (BLK4) - G58-9 (E)

      P - W-B

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 communication input

      Ignition switch off

      Below 1 V

      G58-2 (BLK4) - G58-9 (E)

      P - W-B

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 communication input

      Check waveform 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 2)

      G58-7 (BLK2) - G58-9 (E)

      LG - W-B

      ECM communication output

      Ignition switch off

      Below 1 V

      G58-7 (BLK2) - G58-9 (E)

      LG - W-B

      ECM communication output

      Check waveform 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 1)

      G58-8 (BLK3) - G58-9 (E)

      P - W-B

      ECM communication input

      Ignition switch off

      Below 1 V

      G58-8 (BLK3) - G58-9 (E)

      P - W-B

      ECM communication input

      Check waveform 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 2)

      *1: w/ Entry and Start System

      *2: w/o Entry and Start System

    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. Waveform 1 (Reference)

        B325134C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 1. Measurement Condition

        Item

        Content

        Tester Connection

        • G58-1 (BLK1) - G58-9 (E)

        • G58-7 (BLK2) - G58-9 (E)

        Tool Setting

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

        Condition

        Check waveform 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

      2. Waveform 2 (Reference)

        B333259C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 2. Measurement Condition

        Item

        Content

        Tester Connection

        • G58-2 (BLK4) - G58-9 (E)

        • G58-8 (BLK3) - G58-9 (E)

        Tool Setting

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

        Condition

        Check waveform 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

  2. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)

    1. Disconnect the G82 certification ECU (smart key ECU assembly) connector.

      B264892N73

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G82-11 (E) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      G82-2 (+B) - G82-11 (E)

      W - BR

      +B power supply

      Always

      11 to 14 V

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

    3. Reconnect the G82 certification ECU (smart key ECU assembly) connector.

    4. Measure the waveform and voltage according to the value(s) in the table below.

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G82-14 (EFII) - G82-11 (E)

      LG - BR

      ECM input signal

      Engine switch off

      11 to 14 V

      G82-14 (EFII) - G82-11 (E)

      LG - BR

      ECM input signal

      Check waveform 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)

      G82-13 (EFIO) - G82-11 (E)

      P - BR

      ECM output signal

      Engine switch off

      Below 1 V

      G82-13 (EFIO) - G82-11 (E)

      P - BR

      ECM output signal

      Check waveform 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)

    5. Inspect using an oscilloscope.

      1. Waveform 1 (Reference)

        B325134C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 3. Measurement Condition

        Item

        Content

        Tester Connection

        G82-14 (EFII) - G82-11 (E)

        Tool Setting

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

        Condition

        Check waveform 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)

        B333259C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 4. Measurement Condition

        Item

        Content

        Tester Connection

        G82-13 (EFIO) - G82-11 (E)

        Tool Setting

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

        Condition

        Check waveform 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

  3. CHECK TRANSPONDER KEY ECU ASSEMBLY (w/o Entry and Start System)

    B271269N04

    1. Disconnect the G88 transponder key ECU assembly connector.

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G88-1 (+B) - G88-5 (GND)

      BE - BR

      +B power supply

      Always

      11 to 14 V

      G88-2 (IG) - G88-5 (GND)

      LG - BR

      Ignition power supply

      Ignition switch off

      Below 1 V

      Ignition switch ON

      11 to 14 V

      G88-5 (GND) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

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

    3. Reconnect the G88 transponder key ECU assembly connector.

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G88-12 (EFII) - G88-5 (GND)

      LG - BR

      ECM input signal

      Ignition switch off

      11 to 14 V

      G88-12 (EFII) - G88-5 (GND)

      LG - BR

      ECM input signal

      Check waveform 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 1)

      G88-13 (EFIO) - G88-5 (GND)

      P - BR

      ECM output signal

      Ignition switch off

      Below 1 V

      G88-13 (EFIO) - G88-5 (GND)

      P - BR

      ECM output signal

      Check waveform 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 2)

    5. Using an oscilloscope, check the waveform.

      1. Waveform 1 (Reference)

        B325134C02

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms

        Tester Connection

        G88-12 (EFII) - G88-5 (GND)

        Tool Setting

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

        Condition

        Check waveform 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.

      2. Waveform 2 (Reference)

        B333259C01

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms

        Tester Connection

        G88-13 (EFIO) - G88-5 (GND)

        Tool Setting

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

        Condition

        Check waveform 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. CHECK ECM (3ZR-FE)

    A247842N12
    Tip:

    The standard voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard voltage for that pair of terminals, displayed in the "Specified Condition" column. The illustration above can be used as a reference to identify the ECM terminal locations.

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      B75-16 (E1) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      B75-51 (E01) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      B75-21 (E02) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      B75-52 (E04) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      A62-50 (EC) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      B75-59 (ME01) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      A62-1 (BATT) - B75-16 (E1)

      W - BR

      Battery (for measuring battery voltage and for ECM memory)

      Always

      9 to 14 V

      A62-2 (+B) - B75-16 (E1)

      R - BR

      Power source of ECM

      Ignition switch off

      Below 1 V

      Ignition switch ON

      9 to 14 V

      A62-3 (+B2) - B75-16 (E1)

      P - BR

      Power source of ECM

      Ignition switch off

      Below 1 V

      Ignition switch ON

      9 to 14 V

      A62-28 (IMI) - B75-16 (E1)

      P - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 input signal

      Ignition switch off

      Below 1 V

      A62-28 (IMI) - B75-16 (E1)

      P - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 input signal

      Check waveform 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 1)

      A62-29 (IMO) - B75-16 (E1)

      LG - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 output signal

      Ignition switch off

      Below 1 V

      A62-29 (IMO) - B75-16 (E1)

      LG - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 output signal

      Check waveform 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 2)

      *1: w/ Entry and Start System

      *2: w/o Entry and Start System

    2. Inspect using an oscilloscope.

      Note:

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

      1. Waveform 1 (Reference)

        B325134C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 5. Measurement Condition

        Item

        Content

        Tester Connection

        A62-29 (IMO) - B75-16 (E1)

        Tool Setting

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

        Condition

        Check waveform 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

      2. Waveform 2 (Reference)

        B333259C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 6. Measurement Condition

        Item

        Content

        Tester Connection

        A62-28 (IMI) - B75-16 (E1)

        Tool Setting

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

        Condition

        Check waveform 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

  5. CHECK ECM (2AR-FE)

    A247842N13
    Tip:

    The standard voltage between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard voltage for that pair of terminals, displayed in the "Specified Condition" column. The illustration above can be used as a reference to identify the ECM terminal locations.

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      B77-16 (E1) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      B77-50 (E01) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      B77-49 (E02) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      B77-53 (E04) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      A62-14 (EC) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      B77-58 (ME01) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      A62-1 (BATT) - B77-16 (E1)

      W - BR

      Battery (for measuring battery voltage and for ECM memory)

      Always

      9 to 14 V

      A62-2 (+B) - B77-16 (E1)

      R - BR

      Power source of ECM

      Ignition switch off

      Below 1 V

      Ignition switch ON

      9 to 14 V

      A62-3 (+B2) - B77-16 (E1)

      P - BR

      Power source of ECM

      Ignition switch off

      Below 1 V

      Ignition switch ON

      9 to 14 V

      A62-28 (IMI) - B77-16 (E1)

      P - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 input signal

      Ignition switch off

      Below 1 V

      A62-28 (IMI) - B77-16 (E1)

      P - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 input signal

      Check waveform 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 1)

      A62-29 (IMO) - B77-16 (E1)

      LG - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 output signal

      Ignition switch off

      Below 1 V

      A62-29 (IMO) - B77-16 (E1)

      LG - BR

      Certification ECU (smart key ECU assembly)*1 or transponder key ECU assembly*2 output signal

      Check waveform 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 2)

      *1: w/ Entry and Start System

      *2: w/o Entry and Start System

    2. Inspect using an oscilloscope.

      Note:

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

      1. Waveform 1 (Reference)

        B325134C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 7. Measurement Condition

        Item

        Content

        Tester Connection

        A62-29 (IMO) - B77-16 (E1)

        Tool Setting

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

        Condition

        Check waveform 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

      2. Waveform 2 (Reference)

        B333259C04

        *a

        Approximately 160 ms

        *b

        Approximately 270 ms
        Table 8. Measurement Condition

        Item

        Content

        Tester Connection

        A62-28 (IMI) - B77-16 (E1)

        Tool Setting

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

        Condition

        Check waveform 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