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

  1. CHECK ENGINE SWITCH

  1. CHECK CERTIFICATION ECU

  1. CHECK ID CODE BOX

  1. CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)

  1. CHECK POWER MANAGEMENT CONTROL ECU

  1. CHECK ECM (for 1GR-FE)

  1. CHECK ECM (for 2TR-FE)

  1. CHECK ECM (for 1KD-FTV)

  1. CHECK ECM (for 1GD-FTV)

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



CHECK ENGINE SWITCH

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu

  1. Disconnect the G36 switch connector.

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

    Terminal No. (Symbol)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    G36-8 (AGND) - Body ground
    GR - Body ground
    Ground
    Always
    Below 1 Ω
    G36-5 (GND) - Body ground
    W-B - Body ground
    Ground
    Always
    Below 1 Ω
  3. Reconnect the G36 switch connector.

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

    Terminal No. (Symbol)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    G36-9 (TXCT) - G36-8 (AGND)
    W - GR
    Key code output signal
    Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed
    Below 1 V
    G36-9 (TXCT) - G36-8 (AGND)
    W - GR
    Key code output signal
    Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed
    Pulse generation
    (see waveform 1)
    G36-10 (CODE) - G36-8 (AGND)
    V - GR
    Demodulated signal of key code data
    Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed
    Below 1 V
    G36-10 (CODE) - G36-8 (AGND)
    V - GR
    Demodulated signal of key code data
    Engine switch off, key held against engine switch and engine switch pushed*3
    Pulse generation
    (see waveform 2)
    G36-11 (SWIL) - G36-5 (GND)
    B - W-B
    Illumination signal
    Light control switch off → tail
    Below 2 V → 9 to 14 V
    G36-14 (VC5) - G36-8 (AGND)
    P - GR
    Power supply
    Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed
    Below 1 V
    G36-14 (VC5) - G36-8 (AGND)
    P - GR
    Power supply
    Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed
    Pulse generation
    (see waveform 3)
    1. *1: for Automatic Transmission
    2. *2: for Manual Transmission
    HINT:
    *3: Remove the key battery before performing this inspection.


  5. Inspect using an oscilloscope.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G36-9 (TXCT) - G36-8 (AGND)
      Tool Setting
      2 V/DIV., 20 ms./DIV.
      Condition
      Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed


    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    3. Waveform 2 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G36-10 (CODE) - G36-8 (AGND)
      Tool Setting
      2 V/DIV., 20 ms./DIV.
      Condition
      Engine switch off, key held against engine switch and engine switch pushed*
      HINT:
      *: Remove the key battery before performing this inspection.


    4. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    5. Waveform 3 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G36-14 (VC5) - G36-8 (AGND)
      Tool Setting
      2 V/DIV., 20 ms./DIV.
      Condition
      Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

CHECK CERTIFICATION ECU

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu

  1. Disconnect the G38 ECU 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
    G38-1 (+B) - G38-15 (E)
    V - W-B
    +B power supply
    Always
    11 to 14 V
    G38-17 (CUTB) - G38-15 (E)
    L - W-B
    +B power supply
    Always
    11 to 14 V
    G38-16 (IG) - G38-15 (E)
    W - W-B
    Ignition power supply
    Engine switch off → on (IG)
    Below 1 V → 11 to 14 V
    G38-15 (E) - Body ground
    W-B - Body ground
    Ground
    Always
    Below 1 Ω
  3. Reconnect the G38 ECU connector.

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

    Terminal No. (Symbol)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    G38-2 (IND) - G38-15 (E)
    G - W-B
    Security indicator output
    Engine switch off → on (IG)
    Pulse generation
    → Below 2 V
    G38-11 (SWIL) - G38-36 (AGND)
    B - GR
    Illumination signal
    Light control switch off
    Below 2 V
    G38-11 (SWIL) - G38-36 (AGND)
    B - GR
    Illumination signal
    Light control switch tail
    9 to 14 V
    G38-12 (TXCT) - G38-36 (AGND)
    W - GR
    Engine switch TXCT output
    Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed
    Below 1 V
    G38-12 (TXCT) - G38-36 (AGND)
    W - GR
    Engine switch TXCT output
    Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed
    Pulse generation
    (see waveform 1)
    G38-13 (CODE) - G38-36 (AGND)
    V - GR
    Engine switch CODE input
    Key not in cabin
    Below 1 V
    G38-13 (CODE) - G38-36 (AGND)
    V - GR
    Engine switch CODE input
    Engine switch off, key held against engine switch and engine switch pushed*3
    Pulse generation
    (see waveform 2)
    G38-28 (VC5) - G38-36 (AGND)
    P - GR
    Engine switch power supply
    Engine switch off, 30 seconds or more after door opened or closed and brake pedal*1 or clutch pedal*2 not depressed
    Below 1 V
    G38-28 (VC5) - G38-36 (AGND)
    P - GR
    Engine switch power supply
    Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed
    Pulse generation
    (see waveform 3)
    G38-36 (AGND) - Body ground
    GR - Body ground
    Engine switch ground
    Always
    Below 1 Ω
    1. *1: for Automatic Transmission
    2. *2: for Manual Transmission
    HINT:
    *3: Remove the key battery before performing this inspection.


  5. Inspect using an oscilloscope.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G38-12 (TXCT) - G38-36 (AGND)
      Tool Setting
      2 V/DIV., 20 ms./DIV.
      Condition
      Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed


    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    3. Waveform 2 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G38-13 (CODE) - G38-36 (AGND)
      Tool Setting
      2 V/DIV., 20 ms./DIV.
      Condition
      Engine switch off, key held against engine switch and engine switch pushed*
      HINT:
      *: Remove the key battery before performing this inspection.


    4. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    5. Waveform 3 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G38-28 (VC5) - G38-36 (AGND)
      Tool Setting
      2 V/DIV., 20 ms./DIV.
      Condition
      Engine switch off, key not in cabin and 30 seconds or less after engine switch pushed

CHECK ID CODE BOX

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu

  1. Disconnect the G37 box 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
    G37-1 (+B) - G37-8 (GND)
    V - W-B
    +B power supply
    Always
    11 to 14 V
    G37-8 (GND) - Body ground
    W-B - Body ground
    Ground
    Always
    Below 1 Ω
  3. Reconnect the G37 box connector.

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

    Terminal No. (Symbol)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    G37-5 (EFII) - G37-8 (GND)
    SB - W-B
    ECM input signal
    Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Pulse generation
    (see waveform 1)
    G37-6 (EFIO) - G37-8 (GND)
    W - W-B
    ECM output signal
    Engine switch off → on (IG)
    Below 1 V → Pulse generation
    (see waveform 2)


  5. Inspect using an oscilloscope.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G37-5 (EFII) - G37-8 (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 engine switch first turned on (IG) after battery disconnected and connected


    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    3. Waveform 2 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G37-6 (EFIO) - G37-8 (GND)
      Tool Setting
      10 V/DIV., 100 ms./DIV.
      Condition
      Engine switch on (IG)

CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
  1. Disconnect the G35 ECU connector.

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

    Terminal No. (Symbol)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    G35-1 (GND) - Body ground
    W-B - Body ground
    Ground
    Always
    Below 1 Ω
    G35-6 (IG2) - G35-1 (GND)
    W - W-B
    IG2 signal input
    Engine switch off → on (IG)
    Below 1 V → 11 to 14 V
    G35-7 (B) - Body ground
    G - Body ground
    Power source
    Always
    11 to 14 V

CHECK POWER MANAGEMENT CONTROL ECU

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu

  1. Disconnect the G51 ECU connector.

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

    Terminal No. (Symbol)
    Wiring Color
    Terminal Description
    Condition
    Specified Condition
    G51-1 (AM22) - Body ground
    B - Body ground
    Battery power
    Always
    11 to 14 V
    G51-2 (AM21) - Body ground
    B - Body ground
    Battery power
    Always
    11 to 14 V
    G51-5 (GND2) - Body ground
    W-B - Body ground
    Ground
    Always
    Below 1 Ω
    G51-6 (GND) - Body ground
    W-B - Body ground
    Ground
    Always
    Below 1 Ω

CHECK ECM (for 1GR-FE)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start 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
    G56-8 (IMO) - Body ground*1
    G56-20 (IMO) - Body ground*2
    SB - Body ground
    ID code box output signal
    Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Pulse generation
    (see waveform 1)
    G56-10 (IMI) - Body ground*1
    G56-14 (IMI) - Body ground*2
    W - Body ground
    ID code box input signal
    Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Below 1 V → Pulse generation
    (see waveform 2)
    1. *1: for Automatic Transmission
    2. *2: for Manual Transmission


  2. Inspect using an oscilloscope.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G56-8 (IMO) - Body ground*1
      G56-20 (IMO) - Body ground*2
      Tool Setting
      5 V/DIV., 500 ms./DIV.
      Condition
      Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
      1. *1: for Automatic Transmission
      2. *2: for Manual Transmission


    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    3. Waveform 2 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G56-10 (IMI) - Body ground*1
      G56-14 (IMI) - Body ground*2
      Tool Setting
      10 V/DIV., 100 ms./DIV.
      Condition
      Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
      1. *1: for Automatic Transmission
      2. *2: for Manual Transmission

CHECK ECM (for 2TR-FE)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start 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
    G181-9 (IMO) - Body ground
    SB - Body ground
    ID code box output signal
    Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Pulse generation
    (see waveform 1)
    G181-10 (IMI) - Body ground
    W - Body ground
    ID code box input signal
    Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Below 1 V → Pulse generation
    (see waveform 2)


  2. Inspect using an oscilloscope.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G181-9 (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 engine switch first turned on (IG) after battery disconnected and connected


    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    3. Waveform 2 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G181-10 (IMI) - Body ground
      Tool Setting
      10 V/DIV., 100 ms./DIV.
      Condition
      Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

CHECK ECM (for 1KD-FTV)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start 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
    G58-29 (IMO) - Body ground
    SB - Body ground
    ID code box output signal
    Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Pulse generation
    (see waveform 1)
    G58-28 (IMI) - Body ground
    W - Body ground
    ID code box input signal
    Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Below 1 V → Pulse generation
    (see waveform 2)


  2. Inspect using an oscilloscope.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G58-29 (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 engine switch first turned on (IG) after battery disconnected and connected


    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    3. Waveform 2 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G58-28 (IMI) - Body ground
      Tool Setting
      10 V/DIV., 100 ms./DIV.
      Condition
      Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected

CHECK ECM (for 1GD-FTV)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start 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
    G185-17 (IMO) - Body ground
    SB - Body ground
    ID code box output signal
    Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Pulse generation
    (see waveform 1)
    G185-16 (IMI) - Body ground
    W - Body ground
    ID code box input signal
    Engine switch off → Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected
    Below 1 V → Pulse generation
    (see waveform 2)


  2. Inspect using an oscilloscope.



      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    1. Waveform 1 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G185-17 (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 engine switch first turned on (IG) after battery disconnected and connected


    2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/ Entry And Start System)  Terminals Of Ecu
    3. Waveform 2 (Reference)

      Measurement Condition
      Item
      Content
      Tester Connection
      G185-16 (IMI) - Body ground
      Tool Setting
      10 V/DIV., 100 ms./DIV.
      Condition
      Within 3 seconds after starter operates and initial combustion occurs, or within 3 seconds after engine switch first turned on (IG) after battery disconnected and connected