ENGINE IMMOBILISER SYSTEM(w/o Power Switch) TERMINALS OF ECU


  1. CHECK TRANSPONDER KEY AMPLIFIER

    A01V22WE02

    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
      F41-7 (AGND) - Body ground - GR - Body ground Ground Always Below 1 Ω -
      F41-1 (VC5) - F41-7 (AGND) Input P - GR Transponder key amplifier power supply No key in ignition key cylinder Below 1 V -
      F41-4 (CODE) - F41-7 (AGND) Output G - GR Demodulated signal of key code data No key in ignition key cylinder Below 1 V -
      F41-5 (TXCT) - F41-7 (AGND) Input L - GR 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
      F41-1 (VC5) - F41-7 (AGND) Input P - GR 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, a malfunction may be indicated by one or more of the Data List items listed above)
      F41-4 (CODE) - F41-7 (AGND) Output G - GR Demodulated signal of key code data Key inserted in ignition key cylinder Pulse generation (See waveform 2)
      F41-5 (TXCT) - F41-7 (AGND) Input L - GR 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. A01UXOVE04

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection F41-1 (VC5) - F41-7 (AGND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      2. A01UZJ0E04

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection F41-4 (CODE) - F41-7 (AGND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      3. A01UZCCE06

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection F41-5 (TXCT) - F41-7 (AGND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder

  2. CHECK TRANSPONDER KEY ECU ASSEMBLY

    A01UXQ8E02

    1. Disconnect the F40 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
      F40-16 (GND) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      F40-1 (+B) - F40-16 (GND) Input Y - BR Auxiliary battery Ignition switch off 11 to 14 V +B
      F40-2 (IG) - F40-16 (GND) Input P - BR Ignition switch Ignition switch off Below 1 V IG SW
      Ignition switch ON 11 to 14 V
      F40-3 (KSW) - F40-16 (GND) Input BE - BR 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 F40 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
      F40-14 (VC5) - F40-16 (GND) Input P - BR 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, a 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)
      F40-4 (TXCT) - F40-16 (GND) Input L - BR Key code output signal No key in ignition key cylinder Below 1 V
      Key inserted in ignition key cylinder Pulse generation (See waveform 2)
      F40-15 (CODE) - F40-16 (GND) Output G - BR 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)
      F40-13 (EFIO) - F40-16 (GND) Input R - BR Power management control ECU output signal Ignition switch off Below 1 V E/G Start Permission
      Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected Pulse generation (See waveform 4)
      F40-12 (EFII) - F40-16 (GND) Output LG - BR Power management control ECU input signal Ignition switch off 11 to 14 V E/G Start Permission
      Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected Pulse generation (See waveform 5)
      F40-9 (D) - F40-16 (GND) Input/Output B - BR Diagnosis tester communication Always Pulse generation -
      F40-5 (AGND) - Body ground - GR - Body ground Transponder key amplifier ground Always Below 1 Ω -

    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. A01UXOVE05

        Waveform 1 (Reference)

        Measurement Condition
        Item Content
        Tester Connection F40-14 (VC5) - F40-16 (GND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      2. A01UZCCE07

        Waveform 2 (Reference)

        Measurement Condition
        Item Content
        Tester Connection F40-4 (TXCT) - F40-16 (GND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder
      3. A01UZJ0E05

        Waveform 3 (Reference)

        Measurement Condition
        Item Content
        Tester Connection F40-15 (CODE) - F40-16 (GND)
        Tool Setting 1 V/DIV., 20 ms./DIV.
        Condition Key inserted in ignition key cylinder

      4. Waveform 4 (Reference)

        A01V26LE01
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection F40-13 (EFIO) - F40-16 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected

      5. Waveform 5 (Reference)

        A01UZGBE01
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection F40-12 (EFII) - F40-16 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected

  3. CHECK POWER MANAGEMENT CONTROL ECU

    A01UXLGE02

    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
      A26-2 (+B2) - F55-5 (E01) Input L - W-B IG power supply Ignition switch ON 11 to 14 V -
      A27-5 (+B1) - F55-5 (E01) Input L - W-B IG power supply Ignition switch ON 11 to 14 V -
      A27-6 (MREL) - F55-5 (E01) Input BE - W-B IG power supply Ignition switch ON 11 to 14 V -
      F55-5 (E01) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      F55-6 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      F56-5 (E02) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      F56-20 (IMO) - F55-6 (E1) Input LG - BR Transponder key ECU assembly communication input Ignition switch off 11 to 14 V E/G Start Permission
      Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected

      Pulse generation

      (See waveform 1)

      		 E/G Start Permission
      F56-21 (IMI) - F55-6 (E1) Output R - BR Transponder key ECU assembly communication output Ignition switch off Below 1 V E/G Start Permission
      Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected

      Pulse generation

      (See waveform 2)

      		 E/G Start Permission

    2. Inspect using an oscilloscope.


      1. Waveform 1 (Reference)

        A01UZGBE01
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection F56-20 (IMO) - F55-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected

      2. Waveform 2 (Reference)

        A01V26LE01
        Text in Illustration
        *a Approximately 160 ms *b Approximately 270 ms
        Measurement Condition
        Item Content
        Tester Connection F56-21 (IMI) - F55-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds after hybrid control system starts, or within 3 seconds after ignition switch first turned to ON after auxiliary battery disconnected and reconnected