ENGINE IMMOBILISER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use these procedures to troubleshoot the engine immobiliser system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. INSPECT BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

    • If the voltage is below 11 V, recharge or replace the battery before proceeding.


    NEXT

  3. CRANK ENGINE FOR MORE THAN 10 SECONDS


    NEXT

  4. CHECK FOR DTC*


    1. Check for DTCs and note any codes that are output Click here.

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

      Result
      Result Proceed to
      DTC is not output A
      SFI system (for 1TR-FE) DTC is output B
      SFI system (for 2TR-FE) DTC is output C
      SFI system (for 1GR-FE) DTC is output D
      ECD system (for 1KD-FTV [for DPF]) DTC is output E
      ECD system (for 1KD-FTV [w/ EGR Cooler]) DTC is output F
      ECD system (for 1KD-FTV [w/o EGR Cooler]) DTC is output G
      ECD system (for 2KD-FTV [for DPF]) DTC is output H
      ECD system (for 2KD-FTV [w/ EGR Cooler]) DTC is output I
      ECD system (for 2KD-FTV [w/o EGR Cooler]) DTC is output J
      Engine immobiliser system DTC is output K

      B

      Go to SFI SYSTEM Click here

      C

      Go to SFI SYSTEM Click here

      D

      Go to SFI SYSTEM Click here

      E

      Go to ECD SYSTEM Click here

      F

      Go to ECD SYSTEM Click here

      G

      Go to ECD SYSTEM Click here

      H

      Go to ECD SYSTEM Click here

      I

      Go to ECD SYSTEM Click here

      J

      Go to ECD SYSTEM Click here

      K

      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
      A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Data List/Active Test Click here.

    2. Terminals of ECU Click here.


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  7. ADJUST, REPAIR OR REPLACE


    NEXT

  8. CHECK FOR DTC*


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Tech Tips

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

      Result
      Result Proceed to
      DTC is not output A
      Engine immobiliser system DTC is output B

      B

      Go to DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  9. CONFIRMATION TEST


    NEXT
    END