TIRE PRESSURE WARNING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedure to troubleshoot the tire pressure warning system.

  • *: Use the GTS.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. ADJUST TIRE PRESSURE*


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

    5. Set the pressure of each tire to the specified value Click here.

      Note

      Make sure the tires are cooled down when adjusting the tire pressure.

    6. Display "ID Tire Inflation Pressure" in the Data List and check that tire pressure data matches the adjusted tire pressure.

      Tech Tips

      It takes a few minutes to display the updated tire pressure data.

    7. Perform initialization Click here.

      Tech Tips

      for ECE-R64 Type:

      The warning threshold value changes depending on the driving conditions during initialization. As a result, the tire pressure warning light may not turn off even if the tire pressure is adjusted to the specified pressure.

      Result
      Condition Proceed to
      Tire pressure warning light remains on A
      Tire pressure warning light goes off B

      B

      GO TO STEP 9
      A

  3. CHECK ECU CONNECTED TO CAN BUS*


    1. Check the ECUs connected to the CAN bus Click here.

      Result
      Result Proceed to
      No malfunction appears A
      Malfunction appears B

      B

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  4. CHECK FOR DTC*


    1. Check for DTCs Click here.

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

      B

      GO TO STEP 6
      A

  5. DTC CHART


    1. Refer to Diagnostic Trouble Code Chart Click here.


      NEXT
      GO TO STEP 8

  6. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table Click here.


      NEXT

  7. CIRCUIT INSPECTION*


    1. Refer to Electronic Circuit Inspection Procedure Click here.


      NEXT

  8. REPAIR OR REPLACE


    1. Repair or replace parts based on the diagnosis result.


      NEXT

  9. CONFIRMATION TEST*


    1. Check the Data List to confirm that the tire inflation pressure has been received Click here.

    2. Perform initialization Click here.

    3. Confirm that the initialization has been completed.


      NEXT
      END