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Home >> Subaru >> 2019 >> Ascent Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P023F: Fuel Pump Secondary Circuit/Open >> Execution Condition

Execution Condition

Diagnosis 1 (power supply short diagnosis) and diagnosis 2 (ground short diagnosis)

Secondary parameters Execution condition
Battery voltage
Engine speed
Elapsed time after fuel pump current shutdown
9.4 V or more
More than 0 RPM
3.15 ms or more

Diagnosis 3 (open circuit), diagnosis 4 (short circuit) and diagnosis 5 (overcurrent)

Secondary parameters Execution condition
Battery voltage
Engine speed
9.4 V or more
More than 0 RPM