GRILLE SHUTTER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use these procedures to troubleshoot the grille shutter system.

  • *: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. INSPECT AUXILIARY BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


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  3. CHECK FOR DTC*


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

    2. Clear the DTCs Click here.

    3. Recheck for DTCs. Based on the DTCs output above, try to force output of the same LIN communication system or grille shutter system DTC by reproducing the symptoms indicated by the DTC.

      Result
      Result Proceed to
      DTC is not output A
      LIN communication system DTC is output B
      Grille shutter system DTC is output C

      B

      Go to LIN COMMUNICATION SYSTEM Click here

      C

      Go to DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  4. 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

  5. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU Click here

    2. Data List / Active Test Click here


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  6. REPAIR OR REPLACE


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  7. CONFIRMATION TEST


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    END