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

The Fuel Level Noisy Signal Diagnostic monitors variations in Fuel Level and looks for erratic or irregular behavior. When the Fuel Level is determined to display unstable, the Fuel Level Sender is determined to be failed.
When the Fuel Level Sender fails, it may cause the Evaporative System Diagnostic to function improperly since it relies on Fuel Level in its leak detection algorithm. A failed Fuel Level Sender will also provide misleading Fuel Level information to the driver (in cases where the PCM drives the fuel gauge).
Checking output signals from FLS under detecting condition, if Difference between previous and current Fuel Level Signal is high than 0.8V, PCM sets P0464. MIL (Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.

DTC Detecting Condition





Specification





Schematic Diagram