TIRE PRESSURE WARNING SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


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

  • Make sure that the wireless door lock control system has exited diagnostic mode before performing the following procedure.

  • *: Use the Techstream.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    1. Interview the customer to confirm the problem.

      Tech Tips

      It is important to collect as much specific information as possible from the customer to allow for a quick repair.


      NEXT

  3. ADJUST TIRE PRESSURE*


    1. Turn the ignition switch off.

    2. Set the tire pressure to the specified value Click here.

    3. Connect the Techstream to the DLC3.

    4. Turn the ignition switch to ON.

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

    6. Read the "ID Tire Inflation Pressure" values.

    7. Check the Data List Click here.

      Tech Tips


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

      • If the problem is that the tire pressure decreases, wait until all of the tire pressure data is received by the ECU. If the data is received, the tire pressure warning light will go off.

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

      B

      GO TO STEP 11
      A

  4. 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

  5. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)*


    1. Check for DTCs Click here.

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

      B

      Go to CAN COMMUNICATION SYSTEM Click here

      A

  6. CHECK FOR DTC*


    1. Check for DTCs Click here.

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

      B

      GO TO STEP 8
      A

  7. DTC CHART


    1. Refer to Diagnostic Trouble Code Chart Click here.


      NEXT
      GO TO STEP 10

  8. PROBLEM SYMPTOMS TABLE


    1. Refer to Problem Symptoms Table Click here.


      NEXT

  9. CIRCUIT INSPECTION*


    1. Refer to Electronic Circuit Inspection Procedure Click here.


      NEXT

  10. REPAIR OR REPLACE


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


      NEXT

  11. 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