IMMOBILISER SYSTEM(w/ Entry and Start System)

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tip:

  • Use this procedure to troubleshoot the immobiliser system.

  • *: Use the GTS.

PROCEDURE

  1. VEHICLE BROUGHT TO WORKSHOP

    Result

    Proceed to

    NEXT
    NEXT

  2. CUSTOMER PROBLEM ANALYSIS

    Tip:

    • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

    • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

    • The following 5 items are important points for problem analysis:

    What

    Vehicle model, system name

    When

    Date, time, occurrence frequency

    Where

    Whether the problem occurs at a specific location.

    Under what conditions?

    Whether the doors were locked or unlocked, whether the engine switch was on, whether the engine was running.

    How did it happen?

    Problem symptoms

    Result

    Proceed to

    NEXT
    NEXT

  3. INSPECT BATTERY VOLTAGE

    1. Measure the 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.

      Tip:

      A simple method to determine whether the battery is discharged is to operate the horn.

    Result

    Proceed to

    NEXT
    NEXT

  4. TURN ENGINE SWITCH ON (IG)

    Tip:

    When using the GTS with the engine switch off, connect the GTS to the DLC3 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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). 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.

    Result

    Proceed to

    NEXT
    NEXT

  5. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

    1. Using the GTS, check for CAN communication system DTCs.

      Click here

    Result

    Result

    Proceed to

    CAN DTCs are not output

    A

    CAN DTCs are output

    B
    B

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    A

  6. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

    1. Using the GTS, check for LIN communication system DTCs.

      Click here

    Result

    Result

    Proceed to

    LIN DTCs are not output

    A

    LIN DTCs are output

    B
    B

    GO TO LIN COMMUNICATION SYSTEM

    Click here

    A

  7. CHECK FOR DTC*

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

      Body Electrical > Entry&Start > Trouble Codes

      Powertrain > Engine and ECT > Trouble Codes

      Powertrain > Engine and ECT > Trouble Codes

      Powertrain > Engine > Trouble Codes

    2. Based on the DTCs output above, proceed to each diagnostic procedure.

    Result

    Result

    Proceed to

    DTCs are not output

    A

    SFI system DTCs are output (for 1NR-FE)

    B

    SFI system DTCs are output (for 1ZR-FAE)

    C

    ECD system DTCs are output (for 1ND-TV)

    D

    SFI system DTCs are output (for 1ZR-FE)

    E

    SFI system DTCs are output (for 2ZR-FE)

    F

    ECD system DTCs are output (for 1WW)

    G

    SFI system DTCs are output (for 8NR-FTS)

    H

    Steering lock system DTCs are output

    I

    Immobiliser system DTCs are output

    J
    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

    I

    GO TO DIAGNOSTIC TROUBLE CODE CHART

    Click here

    J

    GO TO DIAGNOSTIC TROUBLE CODE CHART

    Click here

    A

  8. 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

    REPAIR OR REPLACEClick here

    A

  9. OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Data List / Active Test.

    2. Terminals of ECU.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  10. REPAIR OR REPLACE

    Tip:

    If the Certification ECU (smart key ECU assembly), ID code box ECU (immobiliser code ECU), ECM, or key are replaced, refer to Service Bulletin.

    Result

    Proceed to

    NEXT
    NEXT

  11. CHECK FOR DTC*

    1. Clear the DTCs.

      Body Electrical > Entry&Start > Clear DTCs

      Powertrain > Engine and ECT > Clear DTCs

      Powertrain > Engine and ECT > Clear DTCs

      Powertrain > Engine > Clear DTCs

    2. Check for DTCs.

      Body Electrical > Entry&Start > Trouble Codes

      Powertrain > Engine and ECT > Trouble Codes

      Powertrain > Engine and ECT > Trouble Codes

      Powertrain > Engine > Trouble Codes

      Tip:

      Before checking for DTCs, perform the "DTC Output Confirmation Operation" of each diagnostic procedure.

    Result

    Result

    Proceed to

    DTCs are not output

    A

    Immobiliser system DTCs are output

    B
    A

    END

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART

    Click here