SLIDING ROOF SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

for Preparation Click here


HINT:
  1. Use the following procedure to troubleshoot the sliding roof system.
  2. *: Use the intelligent tester.



1.VEHICLE BROUGHT TO WORKSHOP

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    2.CUSTOMER PROBLEM ANALYSIS

      HINT:
      1. In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
      1. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
      1. The following 5 items are important points in problem analysis:


      What
      		Vehicle, system name
      When
      		Date, time, occurrence frequency
      Where
      		Road conditions
      Under what conditions?
      		Driving conditions, weather conditions
      How did it happen?
      		Problem symptoms

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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

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


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    4.INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

    1. Using the intelligent tester, check if the CAN Communication System is functioning normally (Click here).
      Result 
      Result
      		Proceed to
      DTC is not output
      		A
      DTC is output
      		B



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


    5.INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

    1. Using the intelligent tester, check if the LIN Communication System is functioning normally (Click here).
      Result 
      Result
      		Proceed to
      DTC is not output
      		A
      DTC is output
      		B



    		B.
    GO TO LIN COMMUNICATION 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. Operation Check (Click here).

    2. Terminals of ECU (Click here).

    3. Data List / Active Test (Click here).


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    8.ADJUST, REPAIR OR REPLACE

    1. Check if the sliding roof drive gear assembly has been replaced, or the sliding roof glass or sliding roof housing has been adjusted, or removed and installed.

      Result:
      Result
      		Proceed to
      The sliding roof drive gear assembly has been replaced, or the sliding roof glass or sliding roof housing has been adjusted, or removed and installed.
      		A
      1. The sliding roof drive gear assembly has not been replaced.
      2. The sliding roof glass and sliding roof housing have not been adjusted, or removed and installed.
      		B



    		B.
    Go to step 10
    A


    9.INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

    1. Initialize the sliding roof ECU (sliding roof drive gear assembly) (Click here).

      HINT:
      If initialization has not been performed, the auto operation, jam protection function and key-off operation will not operate or will operate incorrectly.


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    10.CONFIRMATION TEST

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      END