LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Fuel System (A25A-FKS) - Service Information) >> Fuel Sender Gauge Assembly >> Inspection [08/2020 - ] >> Procedure

Inspection [08/2020 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FUEL SENDER GAUGE ASSEMBLY 
    WARNING:

    Perform the inspection in a well-ventilated area.

    Do not perform the inspection near an open flame.

    1. Check that the float moves smoothly between F and E.
    2. Check the fuel sender gauge assembly voltage.
      1. Apply 5 V between terminals 2 and 3.
        NOTE:
        • Be careful when connecting the leads, as the fuel sender gauge assembly may be damaged if the leads are connected to the wrong terminals.
        • Do not apply more than 6 V to terminals 2 or 3.

        HINT: 

        If a stable power supply is not available, connect 4 nickel-metal hydride batteries (1.2 V each) or equivalent in series.

        GTY610316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Fuel Sender Gauge Assembly)
        *b Voltage Applied between Terminals
      2. Measure the voltage according to the value(s) in the table below.
        GTY947488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Fuel Sender Gauge Assembly)

        Standard Voltage

        Tester Connection Float Level Specified Condition
        1 - 2 F 4.255 to 4.605 V*
        Between F and E 0.345 to 4.605 V* (Gradually changes)
        E 0.345 to 0.695 V*

        *: The output voltage changes depending on the voltage applied to the terminals.

        Output voltage (F) = (0.851 x Voltage applied to terminals) to (0.921 x Voltage applied to terminals)

        Output voltage (E) = (0.069 x Voltage applied to terminals) to (0.139 x Voltage applied to terminals)

        If the result is not as specified, replace the fuel sender gauge assembly.

  2. INSPECT NO. 2 FUEL SENDER GAUGE ASSEMBLY 
    WARNING:

    Perform the inspection in a well-ventilated area.

    Do not perform the inspection near an open flame.

    1. Check that the float moves smoothly between F and E.
    2. Check the No. 2 fuel sender gauge assembly voltage.
      1. Apply 5 V between terminals 2 and 3.
        NOTE:
        • Be careful when connecting the leads, as the No. 2 fuel sender gauge assembly may be damaged if the leads are connected to the wrong terminals.
        • Do not apply more than 6 V to terminals 2 or 3.

        HINT: 

        If a stable power supply is not available, connect 4 nickel-metal hydride batteries (1.2 V each) or equivalent in series.

        GTY610316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (No. 2 Fuel Sender Gauge Assembly)
        *b Voltage Applied between Terminals
      2. Measure the voltage according to the value(s) in the table below.
        GTY947582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (No. 2 Fuel Sender Gauge Assembly)

        Standard Voltage

        Tester Connection Float Level Specified Condition
        1 - 2 F 4.255 to 4.605 V*
        Between F and E 0.345 to 4.605 V* (Gradually changes)
        E 0.345 to 0.695 V*

        *: The output voltage changes depending on the voltage applied to the terminals.

        Output voltage (F) = (0.851 x Voltage applied to terminals) to (0.921 x Voltage applied to terminals)

        Output voltage (E) = (0.069 x Voltage applied to terminals) to (0.139 x Voltage applied to terminals)

        If the result is not as specified, replace the No. 2 fuel sender gauge assembly.