LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2021 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Meter / Gauge System (Except Hybrid) - Diagnostic Codes (2 Of 2) & Circuit Tests) >> METER / GAUGE SYSTEM (for Gasoline Model) >> Fuel Receiver Gauge Display Malfunction [08/2020 - ] >> Description

Fuel Receiver Gauge Display Malfunction [08/2020 - ]: Description

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. FUEL RECEIVER GAUGE OPERATION 

    The combination meter assembly receives the fuel level signal via direct line from the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* and the fuel consumption signal from the ECM via CAN communication, then calculates the fuel level in the fuel tank and displays the calculated value on the fuel receiver gauge.

    1. *: for AWD
  2. FUEL RECEIVER GAUGE READING 
    1. During normal driving:

      During driving, the value of the fuel receiver gauge is updated based on the reduction in the fuel level. The reduction is calculated by deducting the value calculated based on the fuel consumption signal sent by the ECM from the value calculated based on the signal sent by the fuel sender gauge assembly and No. 2 fuel sender gauge assembly*.

      1. *: for AWD
    2. During refueling:

      As the fuel level in the fuel tank increases during refilling, the output value of the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* changes. When the combination meter assembly detects a change in the output value of the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* of a certain value or more, it determines that fuel is being added and calculates the added amount. This control is called refueling judgment and the fuel receiver gauge display is updated in accordance with the fuel level calculated based on the refueling judgment.

      1. *: for AWD
  3. REFUELING JUDGMENT CONDITIONS 
    NOTE:

    Add fuel with the engine switch off to ensure safety and to enable refueling judgment so that an appropriate fuel receiver gauge reading will be obtained.

    1. Normal judgment condition (When normal refueling method is used)

      With the engine switch off, the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* detects a change of 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more in the fuel level.

      1. *: for AWD
    2. Other judgment conditions (When other refueling method is used)

      Any of the following conditions is met:

      • With the vehicle and engine stopped and the engine switch on (IG), the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* detects a change of 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more in the fuel level.
      • With the vehicle stopped, the engine switch on (IG) and the shift lever in P or N, the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* detects a change of 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more in the fuel level.
      • With the vehicle stopped, the engine switch on (IG) and the shift lever not in P or N, the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* detects a change of 15.0 liters (15.9 US qts, 13.2 Imp. qts) or more in the fuel level.
        1. *: for AWD
  4. PRECAUTION FOR REFUELING 
    1. The fuel sender gauge assembly and No. 2 fuel sender gauge assembly* cannot detect changes in the fuel level within certain ranges (around points E, 1/2* and F). Therefore, even if 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more of fuel is added, refueling judgment may not be performed and the fuel receiver gauge reading may not change when fuel level is within such ranges.
      1. *: for AWD
    2. When refueling judgment is performed, it takes up to approximately 25 seconds for the fuel receiver gauge reading to change to the appropriate level.
  5. FORCED RESET OF FUEL RECEIVER GAUGE 

    When driving at a vehicle speed of 20 km/h (12 mph) or more, if the fuel level calculated using the signal from the fuel sender gauge assembly and No. 2 fuel sender gauge assembly* is different from the fuel receiver gauge reading by 15.0 liters (15.9 US qts, 13.2 Imp. qts) or more for approximately 2 minutes, the fuel sender gauge assembly reading is immediately updated based on the calculated fuel level.

    1. *: for AWD