ENGINE IMMOBILISER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use these procedures to troubleshoot the engine immobiliser system.

  • *: Use the intelligent tester.

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 auxiliary battery before proceeding.

    Result
    Proceed to
    NEXT

    NEXT

  3. 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.

      Click here

      Based on the DTCs output above, try to cause the output of the same hybrid control system DTC, LIN communication system DTC, steering lock system DTC or engine immobiliser system DTC by simulating the symptoms indicated by the DTC.

      Result
      Result Proceed to
      DTC is not output A
      Hybrid control system DTC is output B
      LIN communication system DTC is output C
      Steering lock system DTC is output D
      Engine immobiliser system DTC is output E

    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

    A

  4. PROBLEM SYMPTOMS TABLE

    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 6 Click here

    A

  5. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Data List / Active Test

      Click here

    2. Terminals of ECU

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. ADJUST, REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  7. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END