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Home >> Lexus >> 2021 >> NX 300 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display - Diagnostic Codes & Symptom Tests >> Meter / Gauge System >> Fuel Receiver Gauge Display Malfunction [10/2014 - 05/2019] >> Procedure

Fuel Receiver Gauge Display Malfunction [10/2014 - 05/2019]: Procedure

  1. CHECK SYMPTOMS 
    1. Ask the customer about the problem symptoms.

      Result

      Result Proceed to
      Malfunction occurs when adding fuel (Even after adding fuel, reading does not increase at all or increases very slowly, etc.) A
      Malfunction occurs during normal driving (The reading does not change, decreases quickly or decreases when the vehicle is not being driven, etc.) (The problem symptom recurs) B
      Malfunction occurs during normal driving (The reading does not change, decreases quickly or decreases when the vehicle is not being driven, etc.) (The problem symptom does not recur) C

    Result: 

    See step  10

    Result: 

    See step  15

    Result: 

    See step  2

  2. PERFORM ACTIVE TEST USING TECHSTREAM (FUEL METER OPERATION) 
    1. Using the Techstream, perform the Active Test.

      Refer to DATA LIST / ACTIVE TEST [10/2014 - 09/2017] , or refer to DATA LIST / ACTIVE TEST [09/2017 - 05/2019]

      Body Electrical > Combination Meter > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Fuel Meter Operation Fuel receiver gauge OFF, Sender E, Empty, Warning, 1/4, 1/2, 3/4, Full or Sender F -

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Fuel Meter Operation

      OK

      Fuel receiver gauge indication is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]  , or refer to  REMOVAL [09/2017 - ] 

    Result: 

    OK 

    See step  3

  3. CHECK FOR DTC (SFI SYSTEM) 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Powertrain > Engine > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - ] 

    Result: 

    OK 

    See step  4

  4. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 05/2019] 

    Result: 

    OK 

    See step  5

  5. CHECK FUEL RECEIVER GAUGE OPERATION BY ADDING FUEL 
    1. Record the fuel receiver gauge reading.
    2. If the fuel tank assembly is almost full, drain 20 liters or more of fuel. (This is not necessary when the fuel tank assembly is sufficiently below full.)
    3. Disconnect the cable from the negative (-) battery terminal to reset the fuel receiver gauge.

      HINT: 

      Check that the engine switch is turned off before disconnecting the cable from the negative (-) battery terminal.

    4. Connect the cable to the negative (-) battery terminal and turn the engine switch on (IG).
    5. Check that the fuel receiver gauge has been reset.
    6. Drive the vehicle at 1.75 km/h (1.09 mph) or more, then move the shift lever to P and turn the engine switch off.
    7. Add 5.0 liters or more of fuel, turn the engine switch on (IG), and check that the fuel receiver gauge reading increases in proportion to the amount of fuel added.

      Result

      Result Proceed to
      Fuel receiver gauge reading increases in proportion to the amount of fuel added A
      Fuel receiver gauge reading does not change even when fuel is added B

    Result: 

    See step  7

    Result: 

    See step  6

  6. INSPECT FUEL TANK ASSEMBLY 

    HINT: 

    Inspect the fuel tank assembly for deformation, foreign matter or an improperly installed fuel receiver gauge, as this may be the cause of a fuel receiver gauge malfunction.

    1. Visually check the fuel tank assembly for any abnormalities.
    2. Check if there is an excessive amount of foreign matter in the fuel tank assembly.
    3. Check the installation condition of the fuel tank assembly and fuel sender gauge assembly.

      Result

      Result Proceed to
      Normal A
      Appearance of the fuel tank assembly is abnormal. B
      There is an excessive amount of foreign matter in the fuel tank assembly. C
      The fuel tank assembly or fuel sender gauge assembly is not installed correctly. D

    Result: 

    REPLACE FUEL TANK ASSEMBLY. Refer to  REMOVAL [10/2014 - 05/2019] 

    Result: 

    CLEAN INSIDE OF FUEL TANK ASSEMBLY 

    Result: 

    INSTALL FUEL TANK ASSEMBLY OR FUEL SENDER GAUGE ASSEMBLY CORRECTLY 

    Result: 

    See step  7

  7. READ VALUE USING TECHSTREAM (FUEL INPUT) 
    1. Using the Techstream, read the Data List.

      Refer to DATA LIST / ACTIVE TEST [10/2014 - 09/2017] , or refer to DATA LIST / ACTIVE TEST [09/2017 - 05/2019]

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Fuel Input Fuel input Min.: 0, Max.: 127.5 Current fuel level displayed Unit: Liter

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Fuel Input

      OK

      Fuel level data displayed on the Techstream is almost the same as the fuel receiver gauge indication.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]  , or refer to  REMOVAL [09/2017 - ] 

    Result: 

    OK 

    See step  8

  8. INSPECT FUEL SENDER GAUGE ASSEMBLY 
    1. Remove the fuel sender gauge assembly.

      Refer to REMOVAL [10/2014 - ]

    2. Inspect the fuel sender gauge assembly.

      Refer to INSPECTION [10/2014 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FUEL SENDER GAUGE ASSEMBLY 

    Refer to REMOVAL [10/2014 - ]

    Result: 

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SENDER GAUGE ASSEMBLY AND BODY GROUND) 
    1. Disconnect the I10 combination meter assembly connector.
    2. Disconnect the b2 fuel sender gauge assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I10-27 (FR) - b2-1 (FS) Always Below 1 Ω
      I10-28 (FE) - b2-2 (FE) Always Below 1 Ω
      I10-31 (ES) - Body ground Always Below 1 Ω
      I10-27 (FR) or b2-1 (FS) - Body ground Always 10 kΩ or higher
      I10-28 (FE) or b2-2 (FE) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]  , or refer to  REMOVAL [09/2017 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  10. PERFORM ACTIVE TEST USING TECHSTREAM (FUEL METER OPERATION) 
    1. Using the Techstream, perform the Active Test.

      Refer to DATA LIST / ACTIVE TEST [10/2014 - 09/2017] , or refer to DATA LIST / ACTIVE TEST [09/2017 - 05/2019]

      Body Electrical > Combination Meter > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Fuel Meter Operation Fuel receiver gauge OFF, Sender E, Empty, Warning, 1/4, 1/2, 3/4, Full or Sender F -

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Fuel Meter Operation

      OK

      Fuel receiver gauge indication is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]  , or refer to  REMOVAL [09/2017 - ] 

    Result: 

    OK 

    See step  11

  11. CHECK FOR DTC (SFI SYSTEM) 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Powertrain > Engine > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - ] 

    Result: 

    OK 

    See step  12

  12. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 05/2019] 

    Result: 

    OK 

    See step  13

  13. CHECK FOR DTC 
    1. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2014 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO DTC B1500. Refer to  DTC B1500: Fuel Sender Open Detected [10/2014 - ]  

    Result: 

    OK 

    See step  14

  14. INSPECT FUEL RECEIVER GAUGE 
    1. Disconnect the cable from the negative (-) battery terminal to reset the fuel receiver gauge.

      HINT: 

      Check that the engine switch is turned off before disconnecting the cable from the negative (-) battery terminal.

    2. Connect the cable to the negative (-) battery terminal and turn the engine switch on (IG).
    3. Check if the fuel receiver gauge reading corresponds with the amount of fuel remaining in the fuel tank assembly.

      Result

      Result Proceed to
      Fuel receiver gauge reading corresponds with the amount of fuel remaining in the fuel tank assembly. A
      Fuel receiver gauge reading does not correspond with the amount of fuel remaining in the fuel tank assembly. B

    Result: 

    END 

    Result: 

    See step  7

  15. CHECK FOR DTC (SFI SYSTEM) 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Powertrain > Engine > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - ] 

    Result: 

    OK 

    See step  16

  16. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 05/2019] 

    Result: 

    OK 

    See step  17

  17. INSPECT FUEL TANK ASSEMBLY 

    HINT: 

    Inspect the fuel tank assembly for deformation, foreign matter or an improperly installed fuel receiver gauge, as this may be the cause of a fuel receiver gauge malfunction.

    1. Visually check the fuel tank assembly for any abnormalities.
    2. Check if there is an excessive amount of foreign matter in the fuel tank assembly.
    3. Check the installation condition of the fuel tank assembly and fuel sender gauge assembly.

      Result

      Result Proceed to
      Normal A
      Appearance of the fuel tank assembly is abnormal. B
      There is an excessive amount of foreign matter in the fuel tank assembly. C
      The fuel tank assembly or fuel sender gauge assembly is not installed correctly. D

    Result: 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]  , or refer to  REMOVAL [09/2017 - ] 

    Result: 

    REPLACE FUEL TANK ASSEMBLY. Refer to  REMOVAL [10/2014 - 05/2019] 

    Result: 

    CLEAN INSIDE OF FUEL TANK ASSEMBLY 

    Result: 

    INSTALL FUEL TANK ASSEMBLY OR FUEL SENDER GAUGE ASSEMBLY CORRECTLY