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

  1. CHECK TRANSPONDER KEY ECU ASSEMBLY

  1. CHECK ECM (for 1KD-FTV)

  1. CHECK ECM (for 2TR-FE)

  1. CHECK ECM (for 5L-E)

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



CHECK TRANSPONDER KEY ECU ASSEMBLY

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/O Entry And Start System) Terminals Of Ecu

  1. Disconnect the G74 transponder key ECU assembly connector.

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

    HINT:
    Measure the values on the wire harness side with the connector disconnected.

    Tester Connection
    		Input/Output
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    		Related Data List Item
    G74-1 (+B) - G74-5 (GND)
    		Input
    		P - W-B
    		Battery
    		Always
    		11 to 14 V
    		+B
    G74-2 (IG) - G74-5 (GND)
    		Input
    		W - W-B
    		Ignition switch signal
    		Ignition switch off
    		Below 1 V
    		IG SW
    Ignition switch ON
    		11 to 14 V
    G74-3 (KSW) - G74-5 (GND)
    		Input
    		G - W-B
    		Unlock warning switch signal
    		No key in ignition key cylinder
    		10 kΩ or higher
    		Key SW/B2780
    Key in ignition key cylinder
    		Below 1 Ω
    G74-5 (GND) - Body ground
    		-
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    		-
    G74-7 (CTY) - Body ground
    		Input
    		R - Body ground*1
    B - Body ground*2
    		Door courtesy switch (for driver side) signal
    		Driver side door closed
    		10 kΩ or higher
    		-
    Driver side door open
    		Below 1 Ω
    1. *1: for LHD
    2. *2: for RHD

  3. Reconnect the G74 transponder key ECU assembly connector.

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

    Tester Connection
    		Input/Output
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    		Related Data List Item
    G74-8 (IND) - G74-5 (GND)
    		Output
    		G - W-B
    		Security indicator signal
    		No key in ignition key cylinder, or 20 sec. elapsed after turning ignition switch to ACC or off (immobiliser system set)
    		Pulse generation
    		Immobiliser
    Key in ignition key cylinder (immobiliser system unset)
    		Below 1 V
    G74-9 (D) - G74-5 (GND)
    		Input/Output
    		W - W-B
    		DLC3 communication
    		Without communication
    		Below 1 V
    		-
    During communication
    		Pulse generation
    G74-4 (ANT1) - G74-5 (GND)
    		Input/Output
    		R - W-B
    		Transponder key amplifier power source
    		No key in ignition key cylinder
    		4 to 6 V
    		-
    Within 3 seconds of inserting key into ignition key cylinder
    		Pulse generation
    (See waveform 1)
    G74-15 (ANT2) - G74-5 (GND)
    		Input/Output
    		G - W-B
    		Transponder key amplifier communication signal
    		No key in ignition key cylinder
    		4 to 6 V
    		-
    Within 3 seconds of inserting key into ignition key cylinder
    		Pulse generation
    (See waveform 2)
    G74-12 (EFII) - G74-5 (GND)
    		Output
    		SB - W-B
    		ECM input signal
    		Ignition switch off
    		11 to 14 V
    		-
    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 3)
    		-
    G74-13 (EFIO) - G74-5 (GND)
    		Input
    		W - W-B
    		ECM output signal
    		Ignition switch off
    		Below 1 V
    		-
    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 4)


  5. Using an oscilloscope, check the waveform.



    1. Waveform 1 (Reference)


      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/O Entry And Start System) Terminals Of Ecu

      Tester Connection
      		G74-4 (ANT1) - G74-5 (GND)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		Within 3 seconds of inserting key into ignition key cylinder


    2. Waveform 2 (Reference)


      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/O Entry And Start System) Terminals Of Ecu

      Tester Connection
      		G74-15 (ANT2) - G74-5 (GND)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		Within 3 seconds of inserting key into ignition key cylinder


    3. Waveform 3 (Reference)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G74-12 (EFII) - G74-5 (GND)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		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. Waveform 4 (Reference)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G74-13 (EFIO) - G74-5 (GND)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		Ignition switch ON

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/O Entry And Start System) Terminals Of Ecu


Tester Connection
Input/Output
Wiring Color
Terminal Description
Condition
Specified Condition
Related Data List Item
C93-1 (E1) - Body ground
-
BR - Body ground
Ground
Always
Below 1 Ω
-
C93-12 (E01) - Body ground
-
W-B - Body ground
Ground
Always
Below 1 Ω
-
C93-13 (E02) - Body ground
-
W-B - Body ground
Ground
Always
Below 1 Ω
-
G57-23 (BATT) - C93-1 (E1)
Input
L - BR
+B power supply
Always
11 to 14 V
-
G57-24 (+B) - C93-1 (E1)
Input
W - BR
IG power supply
Ignition switch ON
11 to 14 V
-
G57-17 (+B2) - C93-1 (E1)
Input
W - BR
IG power supply
Ignition switch ON
11 to 14 V
-
G58-29 (IMO) - C93-1 (E1)
Input
SB - BR
Transponder key ECU assembly communication input
Ignition switch off
11 to 14 V
-
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)
-
G58-28 (IMI) - C93-1 (E1)
Output
W - BR
Transponder key ECU assembly communication output
Ignition switch off
Below 1 V
-
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. Using an oscilloscope, check the waveform.



    1. Waveform 1 (Reference)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G58-29 (IMO) - C93-1 (E1)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		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)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G58-28 (IMI) - C93-1 (E1)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		Ignition switch ON

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/O Entry And Start System) Terminals Of Ecu


Tester Connection
Input/Output
Wiring Color
Terminal Description
Condition
Specified Condition
Related Data List Item
C153-3 (E1) - Body ground
-
BR - Body ground
Ground
Always
Below 1 Ω
-
C153-1 (E01) - Body ground
-
W-B - Body ground
Ground
Always
Below 1 Ω
-
C153-2 (E02) - Body ground
-
W-B - Body ground
Ground
Always
Below 1 Ω
-
G180-3 (BATT) - C153-3 (E1)
Input
L - BR
+B power supply
Always
11 to 14 V
-
G180-1 (+B) - C153-3 (E1)
Input
W - BR
IG power supply
Ignition switch ON
11 to 14 V
-
G180-2 (+B2) - C153-3 (E1)
Input
W - BR
IG power supply
Ignition switch ON
11 to 14 V
-
G181-9 (IMO) - C153-3 (E1)
Input
SB - BR
Transponder key ECU assembly communication input
Ignition switch off
11 to 14 V
-
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)
-
G181-10 (IMI) - C153-3 (E1)
Output
W - BR
Transponder key ECU assembly communication output
Ignition switch off
Below 1 V
-
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. Using an oscilloscope, check the waveform.



    1. Waveform 1 (Reference)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G181-9 (IMO) - C153-3 (E1)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		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)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G181-10 (IMI) - C153-3 (E1)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		Ignition switch ON

CHECK ECM (for 5L-E)

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/O Entry And Start System) Terminals Of Ecu


Tester Connection
Input/Output
Wiring Color
Terminal Description
Condition
Specified Condition
Related Data List Item
C161-5 (E1) - Body ground
-
BR - Body ground
Ground
Always
Below 1 Ω
-
C161-7 (E01) - Body ground
-
W-B - Body ground
Ground
Always
Below 1 Ω
-
C161-6 (E02) - Body ground
-
W-B - Body ground
Ground
Always
Below 1 Ω
-
G183-2 (BATT) - C161-5 (E1)
Input
L - BR
+B power supply
Always
11 to 14 V
-
G183-1 (+B) - C161-5 (E1)
Input
W - BR
IG power supply
Ignition switch ON
11 to 14 V
-
G182-18 (IMO) - C161-5 (E1)
Input
SB - BR
Transponder key ECU assembly communication input
Ignition switch off
11 to 14 V
-
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)
-
G182-19 (IMI) - C161-5 (E1)
Output
W - BR
Transponder key ECU assembly communication output
Ignition switch off
Below 1 V
-
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. Using an oscilloscope, check the waveform.



    1. Waveform 1 (Reference)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G182-18 (IMO) - C161-5 (E1)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		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)


      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/O Entry And Start System) Terminals Of Ecu


      Text in Illustration
      *a
      		Approximately 160 ms
      		*b
      		Approximately 270 ms
      Tester Connection
      		G182-19 (IMI) - C161-5 (E1)
      Tool Setting
      		2 V/DIV., 500 ms./DIV.
      Condition
      		Ignition switch ON