SLIDING ROOF SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedure to troubleshoot the sliding roof system.

  • *: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS

    Tech Tips


    • 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.


    • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.


    • 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 BATTERY VOLTAGE


    1. Measure the battery voltage with the engine switch off.

      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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  4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Using the GTS, check if the CAN Communication System is functioning normally.


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

      B

      GO TO CAN COMMUNICATION SYSTEM Click here

      C

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  5. INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*


    1. Using the GTS, 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

      ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
      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 sub-assembly have been replaced or the sliding roof glass have been adjusted, or removed and installed.

      Result
      Result Proceed to
      The sliding roof drive gear sub-assembly has been replaced or sliding roof glass has been adjusted, or removed and installed. A
      None of the sliding roof drive gear sub-assembly has been replaced or sliding roof glass has been adjusted, or removed and installed. B

      B

      Go to step 10
      A

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


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

      Tech Tips

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


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  10. CONFIRMATION TEST


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    END