METER / GAUGE SYSTEM, Diagnostic DTC:B1501

DTC Code DTC Name
B1501 Sub Fuel Sender Open Detected

DESCRIPTION

This DTC is stored when the combination meter detects a fuel sender gauge malfunction.

DTC Code DTC Detection Condition Trouble Area
B1501

Both conditions are met:


  • The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.

  • Average input signal of fuel sender gauge is 630 Ω or more 3 times consecutively.

  • Harness or connector

  • Combination meter assembly

  • Fuel tank vent tube assembly

  • Fuel sender gauge assembly

Tech Tips

Trouble code B1501 is only stored in vehicles equipped with a double tank.

WIRING DIAGRAM

B001G72E08

PROCEDURE


  1. READ VALUE USING GTS (FUEL INPUT)


    1. Using the GTS, read the Data List Click here.

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

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (FUEL GAUGE CIRCUIT)


    1. Disconnect the G6 combination meter assembly connector.

    2. Disconnect the t1 fuel tank vent tube assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G6-8 (L) - t1-4 (S) Always Below 1 Ω
      G6-23 (FE) - t1-5 (E) Always Below 1 Ω
      G6-21 (E2) - Body ground Always Below 1 Ω
      G6-8 (L) or t1-4 (S) - Body ground Always 10 kΩ or higher
      G6-23 (FE) or t1-5 (E) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FUEL TANK VENT TUBE ASSEMBLY

    A01XE6TC01
    Text in Illustration
    *a Fuel Tank Vent Tube Assembly
    *b

    Component without harness connected

    (Fuel Tank Vent Tube Assembly)

    1. Remove the fuel tank vent tube assembly.


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4 (S) - 1 Always Below 1 Ω
      5 (E) - 2 Always Below 1 Ω

      • for 1GR-FE:

        If it is necessary to replace the fuel tank vent tube assembly, refer to the following procedures Click here.

      • or 2TR-FE:

        If it is necessary to replace the fuel tank vent tube assembly, refer to the following procedures Click here.

      • for 1KD-FTV:

        If it is necessary to replace the fuel tank vent tube assembly, refer to the following procedures Click here.

      • for 1GD-FTV:

        If it is necessary to replace the fuel tank vent tube assembly, refer to the following procedures Click here.

      • for 5L-E:

        If it is necessary to replace the fuel tank vent tube assembly, refer to the following procedures Click here.


    NG

    REPLACE FUEL TANK VENT TUBE ASSEMBLY

    OK

  4. INSPECT FUEL SENDER GAUGE ASSEMBLY


    1. A01XHU8E04
      Text in Illustration
      *a Float Level is F (Upper)
      *b Float Level is E (Lower)

      Remove the fuel sender gauge assembly.


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Float level is F (upper) 13.5 to 16.5 Ω
      Float level is E (lower) 405.5 to 414.5 Ω

      • for 1GR-FE:

        If it is necessary to replace the fuel sender gauge assembly, refer to the following procedures Click here.

      • or 2TR-FE:

        If it is necessary to replace the fuel sender gauge assembly, refer to the following procedures Click here.

      • for 1KD-FTV:

        If it is necessary to replace the fuel sender gauge assembly, refer to the following procedures Click here.

      • for 1GD-FTV:

        If it is necessary to replace the fuel sender gauge assembly, refer to the following procedures Click here.

      • for 5L-E:

        If it is necessary to replace the fuel sender gauge assembly, refer to the following procedures Click here.


    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE FUEL SENDER GAUGE ASSEMBLY