Subaru 2009 IMPREZA Service Manual page 853

Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BP:DTC P0461 FUEL LEVEL SENSOR "A" CIRCUIT RANGE/PERFORMANCE
1. OUTLINE OF DIAGNOSIS
Detect malfunctions of the fuel level sensor output property.
If the fuel level does not vary in a particular driving condition / engine condition where it should, judge as NG.
2. COMPONENT DESCRIPTION
(A)
0
(B)
EN-01734
(A) Fuel level (B) Resistance
3. ENABLE CONDITION
Secondary Parameters Enable Condition
None
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
GD(H4SO)-129