Theft Deterrent Keyless Entry. Engine Immobiliser System (W/O Entry And Start System) Engine Does Not Start Because No Initial Combustion

When a key is inserted into the ignition key cylinder, the transponder key coil receives the key ID code and sends it to the transponder key ECU assembly.
If an error in communication between the transponder key coil and transponder key ECU assembly occurs, this symptom may occur.

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 Because No Initial Combustion

INSPECTION PROCEDURE

NOTICE:

If the transponder key ECU assembly or key is replaced, refer to the Service Bulletin.
When using the GTS with the engine switch off to troubleshoot:
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

Clear the DTCs (Click here).

NEXT

2.CHECK FOR DTC

Check for DTCs (Click here).
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
Result
Result
Proceed to
DTCs are not output (for SFI System)
A
DTCs are not output (for ECD System)
B
DTCs are output
C

Result
Result	Proceed to
DTCs are not output (for SFI System)	A
DTCs are not output (for ECD System)	B
DTCs are output	C

Go to step 4

GO TO DIAGNOSTIC TROUBLE CODE CHART (Click here)

A

3.READ VALUE USING GTS (IMMOBILISER FUEL CUT)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Body Electrical / Immobiliser or Main Body / Active Test.

Perform the Active Test according to the display on the GTS.

Tester Display
Measurement Item / Range
Normal Condition
Diagnostic Note
Immobiliser Fuel Cut
Status of immobiliser system fuel cut / OFF/ON
ON: Immobiliser fuel cut on
OFF: Immobiliser fuel cut off
-
OK:
The item in the Data List indicates "OFF".

Tester Display	Measurement Item / Range	Normal Condition	Diagnostic Note
Immobiliser Fuel Cut	Status of immobiliser system fuel cut / OFF/ON	ON: Immobiliser fuel cut on OFF: Immobiliser fuel cut off	-

Go to step 4

GO TO SFI SYSTEM (Click here)

4.CHECK SECURITY INDICATOR LIGHT OPERATION

Check that the security indicator light turns off when a registered key is inserted into the ignition key cylinder.
OK:
Security indicator light turns off.

Go to step 5

GO TO ENGINE DOES NOT START BUT INITIAL COMBUSTION OCCURS (Click here)

5.CHECK SECURITY INDICATOR LIGHT OPERATION

Check that the security indicator light turns off when another registered key is inserted into the ignition key cylinder.
OK:
Security indicator light turns off.

Go to step 9

OK

6.CHECK WHETHER ENGINE STARTS

Using another registered key, turn the ignition switch to ON.

Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
Result
Result
Proceed to
Engine can be started
A
Engine cannot be started
B

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

GO TO ENGINE DOES NOT START BUT INITIAL COMBUSTION OCCURS (Click here)

A

7.REPLACE KEY

Replace the key.
NOTICE:
Key ID code registration is necessary when replacing the key.
Refer to the Service Bulletin.

NEXT

8.CHECK WHETHER ENGINE STARTS

Using a registered key, turn the ignition switch to ON.

Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
Result
Result
Proceed to
Engine can be started
A
Engine cannot be started (for 1GR-FE)
B
Engine cannot be started (for 1VD-FTV)
C

Result
Result	Proceed to
Engine can be started	A
Engine cannot be started (for 1GR-FE)	B
Engine cannot be started (for 1VD-FTV)	C

GO TO SFI SYSTEM (Click here)

GO TO ECD SYSTEM (Click here)

END (KEY WAS DEFECTIVE)

9.REPLACE TRANSPONDER KEY COIL

Temporarily replace the transponder key coil with a new or known good one (Click here).

NEXT

10.CHECK WHETHER ENGINE STARTS

Using a registered key, turn the ignition switch to ON.

Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
Result
Result
Proceed to
Engine can be started
A
Engine cannot be started
B

Go to step 11

END (TRANSPONDER KEY COIL WAS DEFECTIVE)

11.REPLACE TRANSPONDER KEY ECU ASSEMBLY

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

12.CHECK WHETHER ENGINE STARTS

Using a registered key, turn the ignition switch to ON.

Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
Result
Result
Proceed to
Engine can be started
A
Engine cannot be started
B

Go to step 13

END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)

13.REPLACE KEY

Temporarily replace the key with a new or known good one.
NOTICE:
Key ID code registration is necessary when replacing the key.
Refer to the Service Bulletin.

NEXT

14.CHECK WHETHER ENGINE STARTS

Using a registered key, turn the ignition switch to ON.

Check that the engine starts 5 seconds after the ignition switch was turned to ON.
OK:
Engine starts normally.
Result
Result
Proceed to
Engine can be started
A
Engine cannot be started (for 1GR-FE)
B
Engine cannot be started (for 1VD-FTV)
C

GO TO SFI SYSTEM (Click here)

GO TO ECD SYSTEM (Click here)

END (KEY WAS DEFECTIVE)