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Home >> Lexus >> 2017 >> GX 460 Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display System (Diagnostic Codes & Symptom Tests) >> Meter / Gauge System >> DTC B1500: Fuel Sender Open Detected [08/2019 - ] >> Procedure

DTC B1500: Fuel Sender Open Detected [08/2019 - ]: Procedure

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

      Refer to DATA LIST / ACTIVE TEST [08/2019 - ]

      BODY ELECTRICAL > COMBINATION METER > DATA LIST

      Tester Display Measurement Item / Range Normal Condition Diagnostic Note
      Fuel Input Fuel input signal / Min.: 0, Max. 127.5 L
      • Fuel receiver gauge indicates F: 78.3
      • Fuel receiver gauge indicates 3/4: 62.2
      • Fuel receiver gauge indicates 1/2: 46.1
      • Fuel receiver gauge indicates 1/4: 27.4
      • Fuel receiver gauge indicates E: 8.7
      Unit: Liters

      OK

      Fuel level data can be displayed on the Techstream.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2019 - ] 

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY-FUEL SUCTION PLATE SUB-ASSEMBLY AND BODY GROUND) 
    1. Disconnect the G3 combination meter assembly connector.
    2. Disconnect the S4 fuel suction plate sub-assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G3-26 (L) - S4-2 Always Below 1 Ω
      G3-2 (E3) - S4-3 Always Below 1 Ω
      G3-20 (MGND) - Body ground Always Below 1 Ω
      G3-26 (L) or S4-2 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

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

      Refer to REMOVAL [08/2015 - ]

    2. Inspect the fuel sender gauge assembly.

      Refer to INSPECTION [08/2015 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FUEL SENDER GAUGE ASSEMBLY. Refer to  REMOVAL [08/2015 - ] 

    Result: 

    OK 

    See step  4

  4. INSPECT FUEL SUCTION PLATE SUB-ASSEMBLY 
    1. Remove the fuel suction plate sub-assembly.

      Refer to REMOVAL [08/2015 - ]

      GTY960301Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Upper Side
      *b Lower Side (to Fuel Sender Gauge Assembly)
    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-3 Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2019 - ] 

    Result: 

    NG 

    REPLACE FUEL SUCTION PLATE SUB-ASSEMBLY. Refer to  REMOVAL [08/2015 - ]