SLIDING ROOF SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


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

  • *: Use the Techstream.


  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 for 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

      • 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 Techstream, 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 Techstream, 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. CHECK FOR DTC*


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

    2. Clear the DTCs.

    3. Recheck for DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

      B

      GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  7. 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 9
      A

  8. 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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  9. ADJUST, REPAIR OR REPLACE


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

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

      B

      Go to step 11
      A

  10. INITIALIZE SLIDING ROOF SYSTEM


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

      Tech Tips

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


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  11. CONFIRMATION TEST


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    END