SEAT BELT WARNING SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

for Preparation Click here


HINT:
  1. Use this procedure to troubleshoot the seat belt warning system.
  2. *: Use the intelligent tester.



1.VEHICLE BROUGHT TO WORKSHOP

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    2.CUSTOMER PROBLEM ANALYSIS

    1. Interview the customer to confirm the trouble (Click here).


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    3.INSPECT AUXILIARY BATTERY VOLTAGE

    1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage:
      11 to 14 V

      If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.


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    4.CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

    1. Use the intelligent tester to check if the CAN communication system is functioning normally (Click here).

      Result:
      Result
      		Proceed to
      CAN DTC is not output
      		A
      CAN DTC is output
      		B



    		B.
    GO TO CAN COMMUNICATION SYSTEM (Click here)
    A


    5.CHECK DTC OUTPUT (AIRBAG SYSTEM)*

    1. Clear the DTCs (Click here).

    2. Recheck for DTCs (Click here).

      Result:
      Result
      		Proceed to
      DTC is not output
      		A
      DTC is output
      		B



    		B.
    GO TO AIRBAG SYSTEM (Click here)
    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)


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    8.REPAIR OR REPLACE

      NEXT


      9.CONFIRMATION TEST

        NEXT

        END