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Home >> Subaru >> 2021 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> LAN Communication System (Diagnostics) >> Diagnostics with Phenomenon >> Inspection >> More/Less Fuel Than The Actual Amount Is Displayed

More/Less Fuel Than The Actual Amount Is Displayed

Trouble causes: 

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to LAN SYSTEM (DIAGNOSTICS)>General Description>CAUTION .
  1. CHECK DTC  .

    Read the DTC of [Combination Meter] using the Subaru Select Monitor. Ref. to COMBINATION METER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is [FUEL SENDER OPEN DETECTED] displayed? (Current malfunction)

    Yes  : Perform the diagnosis for the displayed DTCs.

    No  : Go to  2.

  2. CHECK DTC  .
    1. Start the engine.
    2. Using the Subaru Select Monitor, read all DTCs. Ref. to LAN SYSTEM (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>OPERATION .

    Is DTC U**** displayed? (Current malfunction)

    Yes  : Perform the diagnosis according to the basic diagnostic procedure in LAN SYSTEM (DIAGNOSTICS). Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

    No  : Go to  3.

  3. CHECK FUEL GAUGE  .

    Using the Subaru Select Monitor, check the following items in the [Active Test] of [Combination Meter]. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

    • Fuel Meter Operation

    Do the indicated amount on Subaru Select Monitor and the fuel gauge indication match?

    Yes  : Check the fuel level sensor as a single part. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Fuel Level Sensor>INSPECTION .

    No  : Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .