Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

Securities. Camry. Acv40 Gsv40
Engine Immobiliser. Camry. Acv40 Gsv40

  1. CHECK TRANSPONDER KEY AMPLIFIER

  1. CHECK TRANSPONDER KEY ECU ASSEMBLY

  1. CHECK ECM

Engine Immobiliser System (W/O Entry And Start System) -- Terminals Of Ecu



CHECK TRANSPONDER KEY AMPLIFIER


  1. Disconnect the E25 amplifier connector and measure the resistance between the terminal of the wire harness side connector and body ground.


    Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu


    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    AGND (E25-7) - Body ground
    		V - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  2. Reconnect the E25 amplifier connector and measure the resistance and voltage of each terminal of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    VC5 (E25-1) - AGND (E25-7)
    		O - V
    		Power source
    		No key is in ignition key cylinder
    		Below 1 V
    Key is in ignition key cylinder
    		4.6 to 5.4 V
    CODE (E25-4) - AGND (E25-7)
    		BR - V
    		Demodulated signal of key code data
    		No key is in ignition key cylinder
    		Below 1 V
    Key is in ignition key cylinder
    		Waveform 1
    TXCT (E25-5) - AGND (E25-7)
    		R - V
    		Key code output signal
    		No key is in ignition key cylinder
    		Below 1 V
    Key is in ignition key cylinder
    		Waveform 2
    AGND (E25-7) - Body ground
    		V - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, the amplifier may have a malfunction.


  3. Inspect using an oscilloscope.



      Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    1. Waveform 1 (Reference)

      Terminal
      		CODE (E25-4) - AGND (E25-7)
      Tool Setting
      		2 V/DIV., 20 ms./DIV.
      Condition
      		Key is in ignition key cylinder


      2. Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    2. Waveform 2 (Reference)

      Terminal
      		TXCT (E25-5) - AGND (E25-7)
      Tool Setting
      		2 V/DIV., 10 ms./DIV.
      Condition
      		Key is in ignition key cylinder

CHECK TRANSPONDER KEY ECU ASSEMBLY


  1. Disconnect the E15 ECU connector and measure the resistance and voltage between each terminal of the wire harness side connector.


    Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu


    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (E15-16) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    +B (E15-1) - GND (E15-16)
    		W - W-B
    		Battery
    		Always
    		10 to 14 V
    IG (E15-2) - GND (E15-16)
    		LG - W-B
    		Ignition switch signal
    		Ignition switch OFF
    		Below 1 V
    Ignition switch ON
    		10 to 14 V
    KSW (E15-3) - GND (E15-16)
    		B - W-B
    		Unlock warning switch signal
    		No key is in ignition key cylinder
    		10 kΩ or higher
    Key is in ignition key cylinder
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  2. Reconnect the E15 ECU connector and measure the voltage of each terminal of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    AGND (E15-5) - Body ground
    		V - Body ground
    		Ground
    		Always
    		Below 1 Ω
    KSW (E15-3) - GND (E15-16)
    		B - W-B
    		Unlock warning switch signal
    		No key is in ignition key cylinder
    		10 to 14 V
    Key is in ignition key cylinder
    		Below 1 V
    VC5 (E15-14) - AGND (E15-5)
    		O - V
    		Power source
    		No key is in ignition key cylinder
    		Below 1 V
    Key is in ignition key cylinder
    		4.6 to 5.4 V
    TXCT (E15-4) - AGND (E15-5)
    		R - V
    		Transponder key amplifier communication signal
    		No key is in ignition key cylinder
    		Below 1 V
    Key is in ignition key cylinder
    		Waveform 1
    CODE (E15-15) - AGND (E15-5)
    		BR - V
    		Transponder key amplifier communication signal
    		No key is in ignition key cylinder
    		Below 1 V
    Key is in ignition key cylinder
    		Waveform 2
    EFIO (E15-13) - GND (E15-16)
    		L - W-B
    		ECM output signal
    		Ignition switch OFF
    		Below 1 V
    Ignition switch ON
    		Waveform 3
    EFII (E15-12) - GND (E15-16)
    		G - W-B
    		ECM input signal
    		Ignition switch OFF
    		Below 1 V
    Ignition switch ON
    		Waveform 4
    D (E15-9) - GND (E15-16)
    		GR - W-B
    		Diagnostic tester communication
    		Without communication
    		Below 1 V
    During communication
    		Pules generation
    CTY (E15-7) - GND (E15-16)
    		Y - W-B
    		Door courtesy signal
    		Switch pushed
    		10 to 14 V
    Switch free
    		Below 1 V
    IND (E15-8) - GND (E15-16)
    		P - W-B
    		Security indicator signal
    		Security indicator light is on
    		10 to 14 V
    Security indicator light is off
    		Below 1 V
    If the result is not as specified, the ECU may have a malfunction.


  3. Inspect using an oscilloscope.



      Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    1. Waveform 1 (Reference)

      Terminal
      		TXCT (E15-4) - AGND (E15-5)
      Tool Setting
      		2 V/DIV., 10 ms./DIV.
      Condition
      		Key is in ignition key cylinder


      2. Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    2. Waveform 2 (Reference)

      Terminal
      		CODE (E15-15) - AGND (E15-5)
      Tool Setting
      		2 V/DIV., 20 ms./DIV.
      Condition
      		Key is in ignition key cylinder


      3. Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    3. Waveform 3 (Reference)

      Terminal
      		EFIO (E15-13) - GND (E15-16)
      Tool Setting
      		2 V/DIV., 1 s./DIV.
      Condition
      		Ignition switch ON


      4. Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    4. Waveform 4 (Reference)

      Terminal
      		EFII (E15-12) - GND (E15-16)
      Tool Setting
      		2 V/DIV., 1 s./DIV.
      Condition
      		Ignition switch ON

CHECK ECM


  1. Disconnect the C24*1 or C55*2 or C58*3 ECM connector and measure the resistance between the terminal of the wire harness side connector and body ground.


    Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu


    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E1 (C24-104)*1 - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E1 (C55-81)*2 - Body ground
    E1 (C58-81)*3 - Body ground
    *1: for 2AZ-FE
    *2: for 2GR-FE (LHD)
    *3: for 2GR-FE (RHD)
    If the result is not as specified, there may be a malfunction on the wire harness side.

  2. Reconnect the C24*1 or C55*2 or C58*3 ECM connector. Measure the voltage between each terminal of the connector according to the value(s) in the table below.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    IMI (A24-11)*1 - E1 (C24-104)*1
    		Y - W-B
    		Transponder key ECU input signal
    		Ignition switch OFF
    		Below 1 V
    IMI (A55-11)*2 - E1 (C55-81)*2
    		Ignition switch ON
    		Waveform 1
    IMI (A24-11)*3 - E1 (C58-81)*3
    IMO (A24-10)*1 - E1 (C24-104)*1
    		G - W-B
    		Transponder key ECU output signal
    		Ignition switch OFF
    		Below 1 V
    IMO (A55-10)*2 - E1 (C55-81)*2
    		Ignition switch ON
    		Waveform 2
    IMO (A24-10)*3 - E1 (C58-81)*3
    *1: for 2AZ-FE
    *2: for 2GR-FE (LHD)
    *3: for 2GR-FE (RHD)
    If the result is not as specified, the ECM may have a malfunction.


  3. Inspect using an oscilloscope.



      Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    1. Waveform 1 (Reference)

      Terminal
      		IMI (A24-11)*1 - E1 (C24-104)*1
      IMI (A55-11)*2 - E1 (C55-81)*2
      IMI (A24-11)*3 - E1 (C58-81)*3
      Tool Setting
      		2 V/DIV., 1 s./DIV.
      Condition
      		Ignition switch ON
      *1: for 2AZ-FE
      *2: for 2GR-FE (LHD)
      *3: for 2GR-FE (RHD)


      2. Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System).Engine Immobiliser System (W/O Entry And Start System) Terminals Of Ecu

    2. Waveform 2 (Reference)

      Terminal
      		IMO (A24-10)*1 - E1 (C24-104)*1
      IMO (A55-10)*2 - E1 (C55-81)*2
      IMO (A24-10)*3 - E1 (C58-81)*3
      Tool Setting
      		2 V/DIV., 1 s./DIV.
      Condition
      		Ignition switch ON
      *1: for 2AZ-FE
      *2: for 2GR-FE (LHD)
      *3: for 2GR-FE (RHD)