ENGINE IMMOBILISER SYSTEM(w/o Entry and Start System) Engine does not Start because No Initial Combustion

DESCRIPTION

• 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.

WIRING DIAGRAM

*a	Transponder Key ECU Assembly
*b	Transponder Key Coil

CAUTION / NOTICE / HINT

PROCEDURE

1. CLEAR DTC

   
   

   1. Clear the DTCs Click here.

   
   

   NEXT

2. CHECK FOR DTC

   
   

   1. Check for DTCs Click here.

      Tech Tips

      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

3. CONFIRM ENGINE MODELS

   
   

   1. Check the vehicle specifications.

      Result

      Result	Proceed to
      for 1NR-FE or 1KR-FE	A
      for 1ND-TV	B

   
   

   B

   READ VALUE USING GTS (IMMOBILISER) Click here

   A

4. READ VALUE USING GTS (IMMOBILISER FUEL CUT)

   
   

   1. Turn the ignition switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the ignition switch to ON.

   4. Turn the GTS on.

   5. 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"

      Result

      Result	Proceed to
      NG	A
      OK (for 1KR-FE)	B
      OK (for 1NR-FE)	C

   
   

   B

   GO TO SFI SYSTEM Click here

   C

   GO TO SFI SYSTEM Click here

   A

5. READ VALUE USING GTS (IMMOBILISER)

   
   

   1. Turn the ignition switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the ignition switch to ON.

   4. Turn the GTS on.

   5. Enter the following menus: Body Electrical / Immobiliser / Data List.

      Immobiliser

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Immobiliser	Engine immobiliser system status determined by transponder key ECU assembly / Set or Unset	Set: Engine immobiliser set (engine start prohibited (no key in ignition key cylinder)) Unset: Engine immobiliser unset (engine start permitted (key inserted in ignition key cylinder))	When the engine immobiliser system does not change to the unset state, this item can be used to determine if the cause is the transponder key ECU assembly.

      OK
      On the GTS screen, the display changes between Set and Unset as shown in the table above.

   
   

   OK

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

   NG

6. READ VALUE USING GTS (IMMOBILISER)

   
   

   1. Perform inspection using a different key that has been registered to the vehicle.

   2. Turn the ignition switch off.

   3. Connect the GTS to the DLC3.

   4. Turn the ignition switch to ON.

   5. Turn the GTS on.

   6. Enter the following menus: Body Electrical / Immobiliser / Data List.

      Immobiliser

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Immobiliser	Engine immobiliser system status determined by transponder key ECU assembly / Set or Unset	Set: Engine immobiliser set (engine start prohibited (no key in ignition key cylinder)) Unset: Engine immobiliser unset (engine start permitted (key inserted in ignition key cylinder))	When the engine immobiliser system does not change to the unset state, this item can be used to determine if the cause is the transponder key ECU assembly.

      OK
      On the GTS screen, the display changes between Set and Unset as shown in the table above.

   
   

   NG

   REPLACE TRANSPONDER KEY COIL Click here

   OK

7. CHECK WHETHER ENGINE STARTS WITH OTHER KEYS

   
   

   1. Perform inspection using a different key that has been registered to the vehicle.

   2. It leaves for 5 seconds by the ignition switch ON status, and the engine starting operation is done.

      Result

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

   
   

   A

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

   B

   REPLACE KEY Click here

8. REPLACE TRANSPONDER KEY COIL

   
   

   1. Replace the transponder key coil Click here.

   
   

   NEXT

9. CHECK WHETHER ENGINE STARTS

   Check that the engine starts with an already registered vehicle key.

   OK
   Engine starts normally.

   
   

   OK

   END (TRANSPONDER KEY COIL WAS DEFECTIVE)

   NG

10. REPLACE TRANSPONDER KEY ECU ASSEMBLY

    
    

    1. Replace the transponder key ECU assembly with a new one (Refer to Service Bulletin).

    
    

    NEXT

11. REGISTER KEY

    
    

    1. Reregister the key (Refer to Service Bulletin).

    
    

    NEXT

12. REGISTER ECU COMMUNICATION ID

    
    

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

    
    

    NEXT

13. CHECK WHETHER ENGINE STARTS

    
    

    1. Check that the engine starts with an already registered vehicle key.

       OK
       Engine starts normally.

    
    

    OK

    END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)

    NG

14. REPLACE KEY

    
    

    1. Replace the transponder key master transmitter with a new one (Refer to Service Bulletin).

    
    

    NEXT

15. REREGISTER KEY

    
    

    1. Reregister the key (Refer to Service Bulletin).

    
    

    NEXT

16. CHECK WHETHER ENGINE STARTS

    
    

    1. Check that the engine starts with an already registered vehicle key.

       OK
       Engine starts normally.

       Result

       Result	Proceed to
       OK	A
       NG (for 1KR-FE)	B
       NG (for 1NR-FE)	C
       NG (for 1ND-TV with DPF)	D
       NG (for 1ND-TV for without DPF)	E

    
    

    A

    END (TRANSPONDER KEY MASTER TRANSMITTER WAS DEFECTIVE)

    B

    GO TO SFI SYSTEM Click here

    C

    GO TO SFI SYSTEM Click here

    D

    GO TO ECD SYSTEM Click here

    E

    GO TO ECD SYSTEM Click here