METER / GAUGE SYSTEM Fuel Gauge Malfunction

DESCRIPTION

The fuel sender gauge has a variable resistance mechanism. The resistance decreases when the fuel amount increases, and the resistance increases when the fuel amount decreases. The fuel receiver gauge changes based on the resistance of the fuel sender gauge.

WIRING DIAGRAM

A01FRIWE01

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (FUEL METER OPERATION)


    1. Use the Active Test to check the operation of the fuel receiver gauge Click here.

      Combination Meter
      Tester Display Test Part Control Range Diagnostic Note
      Fuel Meter Operation Fuel receiver gauge OFF, Empty, 1/2 or Full -
      OK
      Fuel receiver gauge indication is normal.

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  2. READ VALUE USING GTS (FUEL INPUT)


    1. Use the Data List to check if the fuel receiver gauge is operating properly Click here.

      Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Fuel Input Fuel input signal / Min.: 0, Max.: 127.5 Current fuel level displayed Unit: Liters.
      OK
      Fuel level signal displayed on the GTS is almost the same as fuel receiver gauge indication.

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SUCTION PLATE SUB-ASSEMBLY, FUEL TANK VENT TUBE ASSEMBLY AND BODY GROUND)


    1. Disconnect the N40 combination meter assembly connector.

    2. Disconnect the U11 fuel suction plate sub-assembly connector.

    3. Disconnect the T16 fuel tank vent tube assembly connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      N40-26 (FR) - U11-2 Always Below 1 Ω
      N40-27 (FE) - T16-3
      U11-3 - T16-2
      N40-30 (ES) - Body ground
      N40-26 (FR) - Body ground Always 10 kΩ or higher
      N40-27 (FE) - Body ground
      U11-3 - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT FUEL SENDER GAUGE ASSEMBLY


    1. Remove the fuel sender gauge assembly.


      1. w/ Canister Pump Module Click here.

      2. w/o Canister Pump Module Click here.

    2. Inspect the fuel sender gauge assembly.


      1. w/ Canister Pump Module Click here.

      2. w/o Canister Pump Module Click here.

        Result
        Result Proceed to
        OK A
        NG (w/ Canister Pump Module) B
        NG (w/o Canister Pump Module) C

    B

    REPLACE FUEL SENDER GAUGE ASSEMBLY Click here

    C

    REPLACE FUEL SENDER GAUGE ASSEMBLY Click here

    A

  5. INSPECT FUEL SUCTION PLATE SUB-ASSEMBLY

    A01FVT9E11

    1. Remove the fuel suction plate sub-assembly.


      1. w/ Canister Pump Module Click here.

      2. w/o Canister Pump Module Click here.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-2 - B-2 Always Below 1 Ω
      A-3 - B-1
      Result
      Result Proceed to
      OK A
      NG (w/ Canister Pump Module) B
      NG (w/o Canister Pump Module) C

    B

    REPLACE FUEL SUCTION PLATE SUB-ASSEMBLY Click here

    C

    REPLACE FUEL SUCTION PLATE SUB-ASSEMBLY Click here

    A

  6. INSPECT NO. 2 FUEL SENDER GAUGE ASSEMBLY


    1. Remove the No. 2 fuel sender gauge assembly.


      1. w/ Canister Pump Module Click here.

      2. w/o Canister Pump Module Click here.

    2. Inspect the No. 2 fuel sender gauge assembly.


      1. w/ Canister Pump Module Click here.

      2. w/o Canister Pump Module Click here.

        Result
        Result Proceed to
        OK A
        NG (w/ Canister Pump Module) B
        NG (w/o Canister Pump Module) C

    B

    REPLACE NO. 2 FUEL SENDER GAUGE ASSEMBLY Click here

    C

    REPLACE NO. 2 FUEL SENDER GAUGE ASSEMBLY Click here

    A

  7. INSPECT FUEL TANK VENT TUBE ASSEMBLY

    A01FU7AE01

    1. Remove the fuel tank vent tube assembly.


      1. w/ Canister Pump Module Click here.

      2. w/o Canister Pump Module Click here.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-2 - B-2 Always Below 1 Ω
      A-3 - B-1
      Result
      Result Proceed to
      OK A
      NG (w/ Canister Pump Module) B
      NG (w/o Canister Pump Module) C

    B

    REPLACE FUEL TANK VENT TUBE ASSEMBLY Click here

    C

    REPLACE FUEL TANK VENT TUBE ASSEMBLY Click here

    A

    REPLACE COMBINATION METER ASSEMBLY Click here