ENGINE IMMOBILISER SYSTEM(w/ Entry and Start System) HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use this procedure to troubleshoot the engine immobiliser system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

    If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

    Result
    Proceed to
    NEXT

    NEXT

  3. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the LIN communication system is functioning normally.

      Result
      Result Proceed to
      LIN DTC is not output A
      LIN DTC is output B

    B

    GO TO LIN COMMUNICATION SYSTEM Click here

    A

  4. CHECK FOR DTC*


    1. Check for DTCs and make a note of any codes that are output.

      Click here

    2. Clear the DTCs.

      Click here

    3. Recheck for DTCs. Based on the DTCs output above, try to cause the output of the same ECD system*1, SFI system*2, steering lock system or engine immobiliser system DTC by reproducing the symptoms indicated by the DTC.

      Click here


      • *1: for Diesel

      • *2: for Gasoline

      Result
      Result Proceed to
      DTC is not output A
      SFI system DTC is output (for 2TR-FE) B
      SFI system DTC is output (for 1GR-FE) C
      ECD system is output (for 1KD-FTV) D
      ECD system is output (for 1GD-FTV (w/ Urea SCR System)) E
      ECD system is output (for 1GD-FTV) F
      Steering lock system DTC is output G
      Engine immobiliser system DTC is output H

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    C

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    D

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    E

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    F

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    G

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    H

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  5. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table.

      Click here

      Result
      Result Proceed to
      Fault is not listed in problem symptoms table A
      Fault is listed in problem symptoms table B

    B

    GO TO STEP 7 Click here

    A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Data List / Active Test

      Click here

    2. Terminals of ECU

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. ADJUST, REPAIR OR REPLACE

    Tech Tips

    If the certification ECU (smart key ECU assembly), ID code box (immobiliser code ECU), steering lock ECU (steering lock actuator assembly), main body ECU (multiplex network body ECU), ECM, or electrical key transmitter sub-assembly are replaced, refer to Service Bulletin.

    Result
    Proceed to
    NEXT

    NEXT

  8. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END