THEFT DETERRENT SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use these procedures to troubleshoot the theft deterrent system.

  • *: Use the intelligent tester.

  • The troubleshooting procedures for the theft deterrent system are based on the premise that the door lock control system, wireless door lock control system, lighting system, power trunk lid system, horn system, engine immobiliser system and entry and start system are operating normally. Check these systems first before troubleshooting the theft deterrent system.


  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.


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  3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD) B
      CAN DTC is output (for RHD) C

      B

      Go to CAN COMMUNICATION SYSTEM (for LHD) Click here

      C

      Go to CAN COMMUNICATION SYSTEM (for RHD) Click here

      A

  4. CHECK LIN COMMUNICATION SYSTEM*


    1. The theft deterrent system uses the LIN communication system to communicate. Check that the LIN communication system is functioning normally.

      Result
      Result Proceed to
      LIN communication system is normal A
      LIN communication system is malfunctioning B

      B

      Go to LIN COMMUNICATION SYSTEM Click here

      A

  5. CHECK FOR DTC*


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

    2. Clear the DTC Click here.

    3. Recheck for DTCs. Based on the DTC output above, try to force output of the same DTC by simulating the symptoms indicated by the DTC.

      Result
      Result Proceed to
      DTC output does not reoccur A
      DTC output reoccurs B

      B

      Go to step 7
      A

  6. 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 8
      A

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Data List / Active Test Click here

    2. Terminals of ECU Click here

    3. On-vehicle Inspection Click here

    4. Inspection


      1. Engine hood courtesy switch Click here

      2. Security indicator light Click here

      3. Security horn Click here


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  8. REPAIR OR REPLACE


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  9. CONFIRMATION TEST


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    END