General Information

Engine Control

P2065 Fuel Level Sensor 'B' Circuit - 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 ECM 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 ECM as a fault.

DTC Description

Checking output signals of fuel sender under detecting condition, if the difference between the fuel level of fuel sender and fuel sub sender is too small, ECM sets P2065. MIL (Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.

DTC Detecting Condition





DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) Normal data of Fuel Level at idle (41%).