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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating / Air Conditioning System (Except HV, W/ Auto A/C) - Diagnostic Codes (1 Of 2) >> AIR CONDITIONING SYSTEM (for Gasoline Model with Automatic Air Conditioning System) >> VEHICLE CONTROL HISTORY (RoB) [11/2023 - ] >> VEHICLE CONTROL HISTORY (RoB) [11/2023 - ]

VEHICLE CONTROL HISTORY (RoB) [11/2023 - ]

  1. CHECK VEHICLE CONTROL HISTORY 
    1. Read the Vehicle Control History (RoB) according to the display on the GTS.

      Body Electrical > Air Conditioner > Utility 

      Tester Display
      Vehicle Control History (RoB)
      VEHICLE CONTROL HISTORY (ROB)

      Code Tester Display Measurement Item Diagnostic Note
      X210F Refrigerant Overabundance Filling History Refrigerant was overfilled If overfilling of refrigerant is detected, the A/C switch indicator light turns off and the compressor stops.

      Detection Condition: 

      • Pressure reaches an abnormal level at a vehicle speed of 20 km/h or higher
      • Compressor lock due to insufficient lubrication continues for 60 seconds
  2. CLEAR VEHICLE CONTROL HISTORY 
    NOTE:

    When the vehicle control history (RoB) is cleared, all the stored history items are cleared.

    1. According to the display on the GTS, clear the Vehicle Control History (RoB).

      Body Electrical > Air Conditioner > Utility 

      Tester Display
      Vehicle Control History (RoB)
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