The fuel level sensor is mounted in the fuel level sensor unit.
The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combination meter sends the fuel level sensor signal to the ECM via the CAN communication line.
It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.
DTC DETECTION LOGIC
If DTC P0461 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. Refer to See: U Code Charts\U0101.
If DTC P0461 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to See: P0607. Driving long distances naturally affect fuel gauge level.
This diagnosis detects the fuel gauge malfunction of the gauge not moving even after a long distance has been driven.
DTC CONFIRMATION PROCEDURE 1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to Component Function Check.
Use component function check to check the overall function of the fuel level sensor. During this check, a 1st trip DTC might not be confirmed.
Is the Inspection result normal?
YES >> Inspection END
NO >> Go to Diagnosis Procedure.