Blocking System Terminals Of Ecu

Vehicle Interior. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Theft Deterrent Keyless Entry. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. CHECK TELEPHONE TRANSCEIVER ASSEMBLY

  1. CHECK TRANSPONDER KEY ECU ASSEMBLY

  1. CHECK ECM (for 2TR-FBE)

  1. CHECK ECM (for 1KD-FTV [except DPF and i-ART], 2KD-FTV [except DPF])

  1. CHECK ECM (for 1KD-FTV [for DPF], 2KD-FTV [for DPF])

  1. CHECK ECM (for 1KD-FTV [for i-ART])

Blocking System -- Terminals Of Ecu



CHECK TELEPHONE TRANSCEIVER ASSEMBLY

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

  1. Disconnect the G144 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
    G144-6 (IG2) - G144-9 (E)
    		B-O - W-B
    		Ignition switch
    		Ignition switch ON
    		11 to 14 V
    G144-9 (E) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    G144-12 (+B) - G144-9 (E)
    		L-Y - W-B
    		Power supply
    		Always
    		11 to 14 V

  3. Reconnect the G144 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
    G144-1 (BLK1) - G144-9 (E)
    		Y-B - W-B
    		Transponder key ECU assembly output signal
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.
    		Pulse generation (See waveform 1)
    G144-2 (BLK4) - G144-9 (E)
    		Y-G - W-B
    		Transponder key ECU assembly input signal
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		Pulse generation (See waveform 2)
    G144-7 (BLK2) - G144-9 (E)
    		Y-B - W-B
    		ECM input signal
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.
    		Pulse generation (See waveform 1)
    G144-8 (BLK3) - G144-9 (E)
    		Y-G - W-B
    		ECM output signal
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		Pulse generation (See waveform 2)


    5. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

  5. Using an oscilloscope, check waveform 1.

    Waveform 1 (Reference)
    Item
    		Content
    Tester Connection
    1. G144-1 (BLK1) - G144-9 (E)
    2. G144-7 (BLK2) - G144-9 (E)
    Tool Setting
    		5 V/DIV., 500 ms./DIV.
    Condition
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.


    6. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

  6. Using an oscilloscope, check waveform 2.

    Waveform 2 (Reference)
    Item
    		Content
    Tester Connection
    1. G144-2 (BLK4) - G144-9 (E)
    2. G144-8 (BLK3) - G144-9 (E)
    Tool Setting
    		10 V/DIV., 100 ms./DIV.
    Condition
    		Ignition switch ON

CHECK TRANSPONDER KEY ECU ASSEMBLY
Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

  1. Disconnect the G26 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
    G26-16 (GND) - Body ground
    		-
    		G - Body ground
    		Ground
    		Always
    		Below 1 Ω
    		-
    G26-1 (+B) - G26-16 (GND)
    		Input
    		L-Y - G
    		Battery
    		Always
    		11 to 14 V
    		+B
    G26-2 (IG) - G26-16 (GND)
    		Input
    		B-O - G
    		Ignition switch
    		Ignition switch off
    		Below 1 V
    		IG SW
    Ignition switch ON
    		11 to 14 V
    G26-3 (KSW) - G26-16 (GND)
    		Input
    		BR - G
    		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 G26 transponder 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
    G26-14 (VC5) - G26-16 (GND)
    		Input
    		L - G
    		Transponder key amplifier power supply
    		No key in ignition key cylinder
    		Below 1 V
    1. BCC Malfunction
    2. Abnormal Status
    3. Different Encrypt Code
    4. Different Serial Number
    (If immobiliser key code certification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above)
    Key inserted in ignition key cylinder
    		4.6 to 5.4 V
    G26-4 (TXCT) - G26-16 (GND)
    		Input
    		L-B - G
    		Key code output signal
    		No key in ignition key cylinder
    		Below 1 V
    Key inserted in ignition key cylinder
    		Pulse generation (See waveform 1)
    G26-15 (CODE) - G26-16 (GND)
    		Output
    		L-Y - G
    		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 2)
    G26-7 (CTY) - G26-16 (GND)
    		Input
    		R-B - G
    		Front door courtesy light switch (for Driver Side)
    		Driver door closed
    		10 kΩ or higher
    		D Door Courtesy SW
    Driver door open
    		Below 1 Ω
    G26-13 (EFIO) - G26-16 (GND)
    		Input
    		Y-G - G
    		ECM output signal
    		Ignition switch off
    		Below 1 V
    		E/G Start Permission
    Ignition switch ON
    		Pulse generation (See waveform 3)
    G26-12 (EFII) - G26-16 (GND)
    		Output
    		Y-B - G
    		ECM input signal
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected
    		Pulse generation (See waveform 4)
    		E/G Start Permission
    G26-8 (IND) - G26-16 (GND)
    		Output
    		G-R - G
    		Security indicator light signal
    		Immobiliser set
    		Alternating between 11 to 14 V and below 1 V
    		-
    Immobiliser unset
    		Below 1 V
    G26-9 (D) - G26-16 (GND)
    		Input/Output
    		B - G
    		Diagnosis tester communication
    		Always
    		Pulse generation
    		-
    G26-5 (AGND) - Body ground
    		-
    		L-O - Body ground
    		Transponder key amplifier ground
    		Always
    		Below 1 Ω
    		-


    5. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

  5. Inspect using an oscilloscope.

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

    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G26-4 (TXCT) - G26-16 (GND)
      Tool Setting
      		5 V/DIV., 20 ms./DIV.
      Condition
      		Key inserted in ignition key cylinder


      2. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    2. Waveform 2 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G26-15 (CODE) - G26-16 (GND)
      Tool Setting
      		5 V/DIV., 20 ms./DIV.
      Condition
      		Key inserted in ignition key cylinder


      3. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    3. Waveform 3 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G26-13 (EFIO) - G26-16 (GND)
      Tool Setting
      		10 V/DIV., 100 ms./DIV.
      Condition
      		Ignition switch ON


      4. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    4. Waveform 4 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G26-12 (EFII) - G26-16 (GND)
      Tool Setting
      		5 V/DIV., 500 ms./DIV.
      Condition
      		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned to ON after battery disconnected and reconnected

CHECK ECM (for 2TR-FBE)

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G146-32 (IMO) - Body ground
    		Y-B - Body ground
    		Transponder key ECU assembly output signal
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.
    		Pulse generation (See waveform 1)
    G146-31 (IMI) - Body ground
    		Y-G -Body ground
    		Transponder key ECU assembly input signal
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		Pulse generation (See waveform 2)


  2. Inspect using an oscilloscope.

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



      Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G146-32 (IMO) - Body ground
      Tool Setting
      		5 V/DIV., 500 ms./DIV.
      Condition
      		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.


      2. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    2. Waveform 2 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G146-31 (IMI) - Body ground
      Tool Setting
      		10 V/DIV., 100 ms./DIV.
      Condition
      		Ignition switch ON

CHECK ECM (for 1KD-FTV [except DPF and i-ART], 2KD-FTV [except DPF])

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G38-29 (IMO) - Body ground
    		Y-B - Body ground
    		Transponder key ECU assembly output signal
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.
    		Pulse generation (See waveform 1)
    G38-30 (IMI) - Body ground
    		Y-G -Body ground
    		Transponder key ECU assembly input signal
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		Pulse generation (See waveform 2)


  2. Inspect using an oscilloscope.

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



      Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G38-29 (IMO) - Body ground
      Tool Setting
      		5 V/DIV., 500 ms./DIV.
      Condition
      		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.


      2. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    2. Waveform 2 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G38-30 (IMI) - Body ground
      Tool Setting
      		10 V/DIV., 100 ms./DIV.
      Condition
      		Ignition switch ON

CHECK ECM (for 1KD-FTV [for DPF], 2KD-FTV [for DPF])

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G148-29 (IMO) - Body ground
    		Y-B - Body ground
    		Transponder key ECU assembly output signal
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.
    		Pulse generation (See waveform 1)
    G148-28 (IMI) - Body ground
    		Y-G -Body ground
    		Transponder key ECU assembly input signal
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		Pulse generation (See waveform 2)


  2. Inspect using an oscilloscope.

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



      Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G148-29 (IMO) - Body ground
      Tool Setting
      		5 V/DIV., 500 ms./DIV.
      Condition
      		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.


      2. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    2. Waveform 2 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G148-28 (IMI) - Body ground
      Tool Setting
      		10 V/DIV., 100 ms./DIV.
      Condition
      		Ignition switch ON

CHECK ECM (for 1KD-FTV [for i-ART])

Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G156-29 (IMO) - Body ground
    		Y-B - Body ground
    		Transponder key ECU assembly output signal
    		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.
    		Pulse generation (See waveform 1)
    G156-28 (IMI) - Body ground
    		Y-G -Body ground
    		Transponder key ECU assembly input signal
    		Ignition switch off
    		Below 1 V
    Ignition switch ON
    		Pulse generation (See waveform 2)


  2. Inspect using an oscilloscope.

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



      Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G156-29 (IMO) - Body ground
      Tool Setting
      		5 V/DIV., 500 ms./DIV.
      Condition
      		Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after ignition switch first turned ON after battery disconnected and connected.


      2. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Theft Deterrent Keyless Entry.Engine Immobiliser System.Blocking System Terminals Of Ecu

    2. Waveform 2 (Reference)

      Measurement Condition
      Item
      		Content
      Tester Connection
      		G156-28 (IMI) - Body ground
      Tool Setting
      		10 V/DIV., 100 ms./DIV.
      Condition
      		Ignition switch ON