DTC P0463: Fuel Level Sensor Circuit High Input

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.

P0463 - FUEL LEVEL SENSOR CIRCUIT HIGH INPUT

Description:	The powertrain control module (PCM) monitors the fuel level input (FLI) circuit for electrical failure. The test fails when the signal moves above the maximum allowable calibrated parameter for a specified fuel fill percentage in the fuel tank.
Possible Causes:	Fuel pump (FP) module concern Incorrectly installed fuel gauge Damaged instrument cluster FLI shorted to VPWR CASE GND circuit open Overfilled fuel tank Damaged fuel gauge
Diagnostic Aids:	See the diagnostic aids for DTC P0460 .
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.