BLOCKING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use this procedure to troubleshoot the blocking system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. 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.


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  3. START ENGINE


    1. Check that the engine starts normally.

      OK
      Engine starts normally.

      NG
      OK
  4. CHECK DTC OUTPUT*


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

    2. Clear the DTCs Click here.

      Result
      Result Proceed to
      DTC is not output. A
      SFI system DTC is output. B
      Engine immobiliser system DTC is output. C
      Smart entry and start system (for start function) DTC is output. D
      Blocking system DTC is output. E

      B
      C
      D
      E
      A
  5. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table Click here.

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

      B
      A
  6. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU Click here


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  7. REPAIR OR REPLACE

    Note


    • When replacing the certification ECU (smart key ECU assembly), telephone transceiver assembly, instrument panel integration antenna assembly or mayday battery, refer to the Service Bulletin.

    • When the telephone transceiver assembly is replaced, it is necessary to set the contract mode.


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  8. CONFIRMATION TEST


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