Engine Immobiliser System (W/O Entry And Start System) Engine Does Not Start But Initial Combustion Occurs

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

CONFIRM ENGINE MODEL

READ VALUE USING INTELLIGENT TESTER

CHECK WHETHER ENGINE STARTS

CHECK ECM (TERMINAL IMI)

CHECK ECM (TERMINAL IMO)

CHECK ECM (TERMINAL IMI)

REGISTER ECU COMMUNICATION ID

CHECK WHETHER ENGINE STARTS

CHECK HARNESS AND CONNECTOR (ECM - TRANSPONDER KEY ECU ASSEMBLY)

REPLACE TRANSPONDER KEY ECU ASSEMBLY

ENGINE IMMOBILISER SYSTEM (w/o Entry and Start System) - Engine does not Start but Initial Combustion Occurs


DESCRIPTION

The key ID code of the transponder chip inside the IG key is compared against the key ID code registered in the transponder key ECU assembly. While checking the code, the transponder key ECU assembly supplies electrical power to the transponder chip in the key by means of the transponder key amplifier. If the codes match, the immobiliser is then UNSET (released), and after the engine start permission signal is sent to the ECM, if communication is functioning properly, engine start can be performed.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/O Entry And Start System) Engine Does Not Start But Initial Combustion Occurs


INSPECTION PROCEDURE

NOTICE:
When replacing the key and transponder key ECU assembly, refer to the Service Bulletin.
1.CHECK FOR DTC

  1. Check for DTCs (Click here).

    HINT:
    Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
    Result
    Result
    		Proceed to
    No DTC output
    		A
    DTC output
    		B


B
GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)
A


2.CONFIRM ENGINE MODEL

  1. Check the vehicle specifications.

    Result
    Result
    		Proceed to
    1GR-FE
    		A
    1VD-FTV
    		B


B
Go to step 4
A


3.READ VALUE USING INTELLIGENT TESTER

  1. Turn the ignition switch off.

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the intelligent tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List.

    Engine and ECT
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Stored as Freeze Frame Data
    Immobiliser Fuel Cut
    		Status of immobiliser fuel cut/
    ON or OFF
    		-
    		Yes
    OK:
    The item in the Data List indicates "OFF".


NG
Go to step 4
OK

GO TO SFI SYSTEM (Click here)

4.CHECK WHETHER ENGINE STARTS

  1. Turn the ignition switch to ON, wait for 5 seconds, and then attempt to start the engine.

    Result
    Result
    		Proceed to
    Engine cannot be started
    		A
    Engine can be started
    		B


B
USE SIMULATION METHOD TO CHECK (Click here)
A


5.CHECK ECM (TERMINAL IMI)


  1. Using an oscilloscope, check the waveform.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/O Entry And Start System) Engine Does Not Start But Initial Combustion Occurs


    Text in Illustration
    *A
    		for LHD
    		*B
    		for RHD
    *a
    		Component with harness connected
    (ECM)
    		*b
    		Component with harness connected
    (Transponder Key ECU Assembly)
    *c
    		Waveform 1
    		*d
    		Waveform 2
    *e
    		Waveform A
    		-
    		-
    Measurement Condition
    Item
    		Content
    Tester Connection
    		A38-11 (IMI) - E96-13 (EFIO)*1
    A52-11 (IMI) - E96-13 (EFIO)*2
    Tool Setting
    		2 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
    1. *1: for LHD
    2. *2: for RHD
    HINT:
    The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
    OK:
    Waveform is output normally (refer to illustration).
    Result
    Result
    		Proceed to
    Normal waveform
    		A
    Waveform 1 or 2 (Waveform A) not output, or has abnormal wavelength or shape
    		B


B
Go to step 10
A


6.CHECK ECM (TERMINAL IMO)


  1. Using an oscilloscope, check the waveform.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/O Entry And Start System) Engine Does Not Start But Initial Combustion Occurs


    Text in Illustration
    *A
    		for LHD
    		*B
    		for RHD
    *a
    		Component with harness connected
    (ECM)
    		*b
    		Component with harness connected
    (Transponder Key ECU Assembly)
    *c
    		Waveform 1
    		*d
    		Waveform 2
    *e
    		Waveform B
    		*f
    		160 ms
    *g
    		510 ms
    		*h
    		270 ms
    Measurement Condition
    Item
    		Content
    Tester Connection
    		A38-10 (IMO) - E96-12 (EFII)*1
    A52-10 (IMO) - E96-12 (EFII)*2
    Tool Setting
    		2 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
    1. *1: for LHD
    2. *2: for RHD
    HINT:
    The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
    OK:
    Waveform is output normally (refer to illustration).
    Result
    Result
    		Proceed to
    Normal waveform
    		A
    Waveform 1 or 2 (Waveform B) not output, or has abnormal wavelength or shape (for 1GR-FE)
    		B
    Waveform 1 or 2 (Waveform B) not output, or has abnormal wavelength or shape (for 1VD-FTV)
    		C


B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)
A


7.CHECK ECM (TERMINAL IMI)


  1. Using an oscilloscope, check the waveform.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function).Engine Immobiliser System (W/O Entry And Start System) Engine Does Not Start But Initial Combustion Occurs


    Text in Illustration
    *A
    		for LHD
    		*B
    		for RHD
    *a
    		Component with harness connected
    (ECM)
    		*b
    		Component with harness connected
    (Transponder Key ECU Assembly)
    *c
    		Waveform 1
    		*d
    		Waveform 2
    *e
    		Waveform C
    		*f
    		160 ms
    *g
    		510 ms
    		*h
    		270 ms
    Measurement Condition
    Item
    		Content
    Tester Connection
    		A38-11 (IMI) - E96-13 (EFIO)*1
    A52-11 (IMI) - E96-13 (EFIO)*2
    Tool Setting
    		2 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
    1. *1: for LHD
    2. *2: for RHD
    HINT:
    The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
    OK:
    Waveform is output normally (refer to illustration).
    Result
    Result
    		Proceed to
    Normal waveform
    		A
    Waveform 1 or 2 (Waveform C) not output, or has abnormal wavelength or shape
    		B


B
Go to step 11
A


8.REGISTER ECU COMMUNICATION ID

  1. Register the ECU communication ID (refer to the Service Bulletin).


NEXT


9.CHECK WHETHER ENGINE STARTS

  1. Check that the engine starts with the key.

    OK:
    Engine starts normally.


NG
Go to step 11
OK

END

10.CHECK HARNESS AND CONNECTOR (ECM - TRANSPONDER KEY ECU ASSEMBLY)

  1. for LHD:

    1. Disconnect the A38 ECM connector.

    2. Disconnect the E96 transponder key ECU assembly connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A38-11 (IMI) - E96-13 (EFIO)
      		Always
      		Below 1 Ω
      E96-13 (EFIO) - Body ground
      		Always
      		10 kΩ or higher

  1. for RHD:

    1. Disconnect the A52 ECM connector.

    2. Disconnect the E96 transponder key ECU assembly connector.

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      A52-11 (IMI) - E96-13 (EFIO)
      		Always
      		Below 1 Ω
      E96-13 (EFIO) - Body ground
      		Always
      		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


11.REPLACE TRANSPONDER KEY ECU ASSEMBLY

  1. Replace the transponder key ECU assembly.

  1. Check that the engine starts with the key.

    OK:
    Engine starts normally.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for 1GR-FE)
    		B
    NG (for 1VD-FTV)
    		C


B
GO TO SFI SYSTEM (Click here)

C
GO TO ECD SYSTEM (Click here)
A

END