General Information

P0463 Fuel Level Sensor 'A' Circuit High Input

General Information

Component Location





General Description

The Fuel Level Sensor (FLS) measures the fuel level in fuel tank and its information is used to supply the PCM with information regarding the monitoring condition of the EVAP canister purge system for leak detection. If the fuel level sensor is monitored for high or low stuck or difference between voltage of fuel level sensor and voltage deviation of fuel level sensor is exceeds limited value while driving, this is interpreted by the PCM as a fault

DTC Description

Checking output signals of fuel level sender under detecting condition, if the fuel level sender's signal is high than 82%, PCM sets P0463. MIL (Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram





Signal Waveform & Data








Fig.1) Normal data of Fuel Level at idle (41%).
Fig.2) Abnormal data of Fuel Level when fuel level sensor circuit open or short.