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Home >> Toyota >> 2018 >> Avalon XLE >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Tire Pressure Warning System - Diagnostic Codes & Circuit Tests - (Except Hybrid) >> Tire Pressure Warning System >> Circuit Tests >> Tire Pressure Warning Light Circuit [10/2014 - 10/2015] >> Procedure

Tire Pressure Warning Light Circuit [10/2014 - 10/2015]: Procedure

  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM) 
    1. Check if CAN communication system DTCs are output (Refer to DIAGNOSIS SYSTEM [10/2014 - 10/2015] ).

      Result

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

    Result: 

    GO TO CAN COMMUNICATION SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 10/2015] )

    Result: 

    See step  2

  2. CHECK DTC OUTPUT (B1247) 
    1. Clear the DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).
    2. Turn the engine switch off.
    3. Turn the engine switch on (IG).
    4. Check for DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).

      OK

      DTC B1247 is not output.

    Result: 

    NG 

    GO TO DTC B1247 

    (Refer to DTC B1247: Tire Pressure Monitor Receiver Communication Stop [10/2014 - ] )

    Result: 

    OK 

    See step  3

  3. CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST) 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG).
    4. Turn the Techstream on.
    5. Enter the following menus: Body Electrical / Combination Meter / Active Test.
    6. Check the condition of the tire pressure warning light using the Techstream.
      COMBINATION METER

      Tester Display Test Part Control Range Diagnostic Note
      Indicat. Tire Pressure Warning System Tire pressure warning light OFF or ON Confirm that the vehicle is stopped with the engine idling.

      OK

      The tire pressure warning light turns on or off in accordance with the Techstream operation.

    Result: 

    OK 

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    NG 

    GO TO METER / GAUGE SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 10/2015] )