Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Lexus >> 2012 >> IS 250 Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel System (Service Information) >> Fuel Sender Gauge Assembly >> Inspection >> Inspection

Fuel Sender Gauge Assembly: Inspection: Inspection

  1. INSPECT FUEL SENDER GAUGE ASSEMBLY 
    1. Disconnect the fuel sender gauge connector.
      Fig 1: View Of Checking Float Moves Smoothly Between F And E
      GTY151389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect the fuel sender gauge assembly (main).
      1. Remove the fuel sender gauge assembly (main).
      2. Check that the float moves smoothly between F and E.
      3. Measure the resistance between the terminals 2 (S) and 3 (FE) of connector according to the value(s) in the table below.

        Standard resistance

        Main 

        Float Level Resistance (Ω)
        F 6.5 to 8.5
        Between E and F 6.5 to 242.6 (Gradually changes)
        E 237.6 to 242.6
    3. Inspect the fuel sender gauge assembly (sub).
    4. Remove the fuel sender gauge assembly (sub).
    5. Check that the float moves smoothly between F and E.
    6. Measure the resistance between the terminals 1 (FS) and 2 (E) according to the value(s) in the table below.

      Standard resistance

      Sub 

      Float Level Resistance (Ω)
      F 6.5 to 8.5
      Between E and F 6.5 to 171.9 (Gradually changes)
      E 167.9 to 171.9

      HINT: 

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