METER / GAUGE SYSTEM Fuel Receiver Gauge Malfunction

DESCRIPTION

The meter CPU uses the fuel sender gauge assembly to determine the level of the fuel in the fuel tank. The resistance of the fuel sender gauge will vary between approximately 15 Ω with the float at the full position, and 410 Ω with the float at the empty position. The meter outputs battery voltage through two 820 Ω resistors that are mounted in parallel inside the meter CPU. The meter CPU measures the voltage between the variable resistor in the fuel sender gauge and the two resistors mounted in parallel in the meter. Voltage measured at this point will vary as the float of the fuel sender gauge is moved. The highest voltage observed should be approximately half of the battery voltage.

Tech Tips

The fuel level warning light will come on when the fuel level is below 11.0 liters (2.9 gallons).

WIRING DIAGRAM

A0162GXE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication DTC is output Click here.

      Result
      Result Proceed to
      CAN communication DTC is not output A
      CAN communication DTC is output B

    B
    A
  2. CHECK MULTIPLEX COMMUNICATION SYSTEM


    1. Check if Multiplex communication DTC is output Click here.

      Result
      Result Proceed to
      Multiplex communication DTC is not output A
      Multiplex communication DTC is output B

    B
    A
  3. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL METER OPERATION)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter following menus: Body / Combination Meter / Active Test.

    5. Check the operation by referring to the table below.

      Combination Meter
      Tester Display Test Part Control Range Diagnostic Note
      Fuel Meter Operation Fuel receiver gauge EMPTY, 1/2, FULL Confirm that the vehicle is stopped, engine idling
      OK
      Fuel receiver gauge indication is normal.

    NG
    OK
  4. READ VALUE USING INTELLIGENT TESTER (FUEL INPUT)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter following menus: Body / Combination Meter / Data List.

    5. Check the values by referring to the table below.

      Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Fuel Input Fuel input signal Min.: 0, Max.: 255 Fuel gauge indicates (E): 6.8 Unit: Liters
      Fuel gauge indicates (1/2): 32.1
      Fuel gauge indicates (F): 56.3
      OK
      Fuel value signal displayed on the intelligent tester is almost the same as fuel receiver gauge indication.

    NG
    OK
  5. INSPECT FUEL SENDER GAUGE ASSEMBLY


    1. A015ZSCE03

      Disconnect the P10 and Q14 connectors.

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

      Standard Resistance: Fuel Sender Gauge (Main)
      Tester Connection Condition Specified Condition
      Q14-2 (S) - Q14-3 (FE) Always 6.5 to 229.6 Ω
      Standard Resistance: Fuel Sender Gauge (Sub)
      Tester Connection Condition Specified Condition
      P10-1 (FS) - P10-2 (E) Always 6.5 to 184.9 Ω

    NG
    OK
  6. CHECK HARNESS AND CONNECTOR (COMBINATION METER - FUEL SENDER GAUGE ASSEMBLY)


    1. Disconnect the J34 connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J34-19 (FR) - Q14-2 (S) Always Below 1 Ω
      Q14-3 (FE) - P10-1 (FS) Always Below 1 Ω
      P10-2 (E) - J34-2 (FE) Always Below 1 Ω
      Q14-2 (S) - Body ground Always 10 kΩ or higher
      P10-1 (FS) - Body ground Always 10 kΩ or higher
      J34-2 (FE) - Body ground Always 10 kΩ or higher

    NG
    OK
  7. INSPECT FUEL SENDER GAUGE ASSEMBLY


    1. Disconnect the fuel sender gauge connector.

      A015ZQGE03
    2. Inspect the fuel sender gauge assembly (main).


      1. Remove the fuel sender gauge assembly (main) with harness connected.

      2. Check that the float moves smoothly between F and E.

      3. Measure the resistance between the terminals 1 (FE) and 2 (S) of the connector according to the value(s) in the table below.

        Standard Resistance (Fuel Sender Gauge Assembly (Main))
        Float Level Resistance (Ω)
        F 6.5 to 8.5
        Between E and F 6.5 to 229.6 (Gradually changes)
        E 224.6 to 229.6
    3. Inspect the fuel sender gauge assembly (sub).


      1. Remove the fuel sender gauge assembly (sub).

      2. Check that the float moves smoothly between F and E.

      3. Measure the resistance between the terminals 1 (FS) and 2 (E) according to the value(s) in the table below.

        Standard Resistance (Fuel Sender Gauge Assembly (Sub))
        Float Level Resistance (Ω)
        F 6.5 to 8.5
        Between E and F 6.5 to 184.9 (Gradually changes)
        E 180.9 to 184.9

    NG
    OK
  8. REPLACE COMBINATION METER


    1. Replace the combination meter to a new one or a known good one Click here.

      OK
      The operation of the combination meter returns to normal.

    NG
    OK