DTC P0460: Fuel Level Sensor Circuit Malfunction

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

P0460 - FUEL LEVEL SENSOR CIRCUIT MALFUNCTION

Description:	The powertrain control module (PCM) monitors the fuel level input (FLI) circuit for electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified fuel fill percentage in the fuel tank.
Possible Causes:	Empty fuel tank Fuel pump (FP) module concern Incorrectly installed fuel gauge Damaged instrument cluster CASE GND circuit open FLI shorted to VPWR Overfilled fuel tank Damaged fuel gauge FLI circuit open FLI circuit shorted to CASE GND or PWR GND CSE GND shorted to VPWR Damaged PCM
Diagnostic Aids:	Monitor the FLI and FLI V PIDs in key on, engine running (KOER). A concern is present if the FLI PID is at 25% fill and the FLI V PID is less than 0.90 volt with a non-matching fuel gauge or the FLI PID is at 75% fill and the FLI V PID is greater than 2.45 volts with a non-matching fuel gauge.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
Explorer Sport Trac, Ranger, Crown Victoria, Grand Marquis	GO to HX: Evaporative Emission (EVAP) Monitor and System STEP HX37.
All others	Refer to INSTRUMENT CLUSTER for fuel level indicator diagnosis.