DTC P0463: Fuel Level Sensor A Circuit High

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Mariner, and 2006 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

P0463 - FUEL LEVEL SENSOR A CIRCUIT HIGH

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 circuit open FLI shorted to VPWR CASE GND circuit open Overfilled fuel tank Damaged fuel gauge
Diagnostic Aids:	See the diagnostic aids for DTC P0462.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test HX .