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


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CLEAR DTC

CHECK FOR DTC

READ VALUE USING GTS (IMMOBILISER FUEL CUT)

CHECK WHETHER ENGINE STARTS

CHECK ECM (TERMINAL IMI)

CHECK ECM (TERMINAL IMO)

REGISTER ECU COMMUNICATION ID

CHECK WHETHER ENGINE STARTS

REPLACE ECM

REGISTER ECU COMMUNICATION ID

CHECK WHETHER ENGINE STARTS

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

REPLACE TRANSPONDER KEY ECU ASSEMBLY

CHECK WHETHER ENGINE STARTS

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


DESCRIPTION

If the key ID codes of the door control transmitter assembly and transponder key ECU assembly match, the engine immobiliser system is unset and the engine start permission signal is sent to the ECM. When the ID codes of the transponder key ECU assembly and ECM match, the engine starts.

WIRING DIAGRAM


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) Engine Does Not Start But Initial Combustion Occurs


INSPECTION PROCEDURE

NOTICE:
  1. If the transponder key ECU assembly or ECM is replaced, refer to the Service Bulletin.
  2. When using the GTS with the vehicle ignition switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Immobiliser. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
1.CLEAR DTC

  1. Clear the DTCs (LandCruiser RM000001GV80AJX.html).


NEXT


2.CHECK FOR DTC

  1. Check for DTCs (LandCruiser RM000001GV80AJX.html).

    Result:
    Result
    		Proceed to
    NG (for SFI System)
    		A
    NG (for ECD System)
    		B
    OK
    		C


B
Go to step 4

C
GO TO DIAGNOSTIC TROUBLE CODE CHART (LandCruiser RM00000292H04UX.html)
A


3.READ VALUE USING GTS (IMMOBILISER FUEL CUT)

  1. Connect the GTS to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the GTS on.

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

  1. Read the Data List according to the display on the GTS.

    Engine and ECT (ECM)
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Immobiliser Fuel Cut
    		Status of immobiliser fuel cut / ON or OFF
    		ON: Immobiliser fuel cut on
    OFF: Immobiliser fuel cut off
    		-
    OK:
    OFF is displayed after the ignition switch to ON.
    Result:
    Result
    		Proceed to
    NG
    		A
    OK
    		B


B
GO TO SFI SYSTEM (LandCruiser RM000000VNB00DX.html)
A


4.CHECK WHETHER ENGINE STARTS

  1. Using a registered door control transmitter assembly, turn the ignition switch to ON.

  1. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

    OK:
    Engine starts normally.
    Result:
    Result
    		Proceed to
    NG
    		A
    OK
    		B


B
USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMJ00XX.html)
A


5.CHECK ECM (TERMINAL IMI)


  1. Using an oscilloscope, check the waveform.


    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) Engine Does Not Start But Initial Combustion Occurs


    Text in Illustration
    *A
    		for 1KD-FTV
    		*B
    		for 2TR-FE (for Automatic Transmission)
    *C
    		for 2TR-FE (for Manual Transmission)
    		*D
    		for 5L-E
    *a
    		Component with harness connected
    (ECM)
    		*b
    		Waveform 1
    *c
    		Waveform 2
    		*d
    		Approximately 160 ms
    *e
    		Approximately 270 ms
    		-
    		-

    Measurement Condition:

    Tester Connection
    		Condition
    		Tool Setting
    		Specified Condition
    G58-28 (IMI) - Body ground*1
    G181-10 (IMI) - Body ground*2
    G182-19 (IMI) - Body ground*3
    		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 V/DIV., 500 ms./DIV.
    		Pulse generation
    (See waveform)
    1. *1: for 1KD-FTV
    2. *2: for 2TR-FE
    3. *3: for 5L-E
    Result:
    Result
    		Proceed to
    Normal waveform
    		A
    Waveform 1 not output, or has abnormal wavelength or shape
    		B
    Waveform 2 not output, or has abnormal wavelength or shape
    		C


B
Go to step 12

C
Go to step 13
A


6.CHECK ECM (TERMINAL IMO)


  1. Using an oscilloscope, check the waveform.


    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) Engine Does Not Start But Initial Combustion Occurs


    Text in Illustration
    *A
    		for 1KD-FTV
    		*B
    		for 2TR-FE (for Automatic Transmission)
    *C
    		for 2TR-FE (for Manual Transmission)
    		*D
    		for 5L-E
    *a
    		Component with harness connected
    (ECM)
    		*b
    		Waveform
    *c
    		Approximately 160 ms
    		*d
    		Approximately 270 ms

    Measurement Condition:

    Tester Connection
    		Condition
    		Tool Setting
    		Specified Condition
    G58-29 (IMO) - Body ground*1
    G181-9 (IMO) - Body ground*2
    G182-18 (IMO) - Body ground*3
    		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 V/DIV., 500 ms./DIV.
    		Pulse generation
    (See waveform)
    1. *1: for 1KD-FTV
    2. *2: for 2TR-FE
    3. *3: for 5L-E
    Result:
    Result
    		Proceed to
    Normal waveform
    		A
    Waveform not output, or has abnormal wavelength or shape
    		B


B
Go to step 9
A


7.REGISTER ECU COMMUNICATION ID

  1. Register the communication ID between the transponder key ECU assembly and ECM.

    HINT:
    Refer to the Service Bulletin.

NEXT


8.CHECK WHETHER ENGINE STARTS

  1. Using a registered door control transmitter assembly, turn the ignition switch to ON.

  1. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

    OK:
    Engine starts normally.


NG
Go to step 13
OK

END (REGISTERED COMMUNICATION ID WAS DEFECTIVE)

9.REPLACE ECM

  1. Temporarily replace the ECM with a new one.

    1. for 1KD-FTV: LandCruiser RM0000013Z002CX.html
    2. for 2TR-FE: LandCruiser RM000000VW203EX.html
    3. for 5L-E: LandCruiser RM000000VW203FX.html

NEXT


10.REGISTER ECU COMMUNICATION ID

  1. Register the ECU communication ID.

    HINT:
    Refer to the Service Bulletin.

NEXT


11.CHECK WHETHER ENGINE STARTS

  1. Using a registered door control transmitter assembly, turn the ignition switch to ON.

  1. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

    OK:
    Engine starts normally.
    Result:
    Result
    		Proceed to
    OK
    		A
    NG (for 2TR-FE)
    		B
    NG (for 1KD-FTV)
    		C
    NG (for 5L-E)
    		D


B
GO TO SFI SYSTEM (LandCruiser RM000000VNB00DX.html)

C
GO TO ECD SYSTEM (LandCruiser RM0000012WB0A9X.html)

D
GO TO ECD SYSTEM (LandCruiser RM000000VQ900HX.html)
A

END (ECM WAS DEFECTIVE)

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

  1. Disconnect the G74 transponder key ECU assembly connector.

  1. Disconnect the G58*1, G181*2 or G182*3 ECM connector.

    1. *1: for 1KD-FTV
    2. *2: for 2TR-FE
    3. *3: for 5L-E

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

    Standard Resistance:
    for 1KD-FTV
    Tester Connection
    		Condition
    		Specified Condition
    G74-13 (EFIO) - G58-28 (IMI)
    		Always
    		Below 1 Ω
    G74-13 (EFIO) or G58-28 (IMI) - Body ground
    		Always
    		10 kΩ or higher
    for 2TR-FE
    Tester Connection
    		Condition
    		Specified Condition
    G74-13 (EFIO) - G181-10 (IMI)
    		Always
    		Below 1 Ω
    G74-13 (EFIO) or G181-10 (IMI) - Body ground
    		Always
    		10 kΩ or higher
    for 5L-E
    Tester Connection
    		Condition
    		Specified Condition
    G74-13 (EFIO) - G182-19 (IMI)
    		Always
    		Below 1 Ω
    G74-13 (EFIO) or G182-19 (IMI) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


13.REPLACE TRANSPONDER KEY ECU ASSEMBLY

  1. Replace the transponder key ECU assembly with a new one.

    HINT:
    Refer to the Service Bulletin.
    NOTICE:
    Key ID code registration is necessary when replacing the transponder key ECU assembly, refer to the Service Bulletin.

NEXT


14.CHECK WHETHER ENGINE STARTS

  1. Using a registered door control transmitter assembly, turn the ignition switch to ON.

  1. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

    OK:
    Engine starts normally.
    Result:
    Result
    		Proceed to
    OK
    		A
    NG (for 2TR-FE)
    		B
    NG (for 1KD-FTV)
    		C
    NG (for 5L-E)
    		D


B
GO TO SFI SYSTEM (LandCruiser RM000000VNB00DX.html)

C
GO TO ECD SYSTEM (LandCruiser RM0000012WB0A9X.html)

D
GO TO ECD SYSTEM (LandCruiser RM000000VQ900HX.html)
A

END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)