For California

DTC P0461 FUEL LEVEL SENSOR





Component Description





The fuel level sensor (3) 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 through 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.
- Fuel level sensor unit and fuel pump (1)
- Fuel pressure regulator (2)
- Fuel tank temperature sensor (4)




On Board Diagnosis Logic

NOTE:
- If DTC P0461 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
- If DTC P0461 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. For California.
This diagnosis detects the fuel gauge malfunction of the gauge not moving even after a long distance has been driven.Driving long distances naturally affect fuel gauge level.









Overall Function Check
Use this procedure to check the overall function of the fuel level sensor function. During this check, a 1st trip
DTC might not be confirmed.

WARNING:
When performing following procedure, be sure to observe the handling of the fuel. Component Removal and Installation.
TESTING CONDITION:
Before starting overall function check, preparation of draining fuel and refilling fuel is required.




Diagnosis Procedure
1.CHECK FUEL GAUGE OPERATION
Self-Diagnosis Mode of Combination Meter.
OK or NG
OK - GO TO 2.
NG - Follow the instruction of Self-Diagnosis Mode of Combination Meter.
2.CHECK FUEL LEVEL SENSOR AND CIRCUIT
Fuel Level Sensor Signal Inspection.
OK or NG
OK - GO TO 3.
NG - Repair or replace malfunctioning parts.
3.CHECK INTERMITTENT INCIDENT
For California For California.
- INSPECTION END




Removal and Installation

FUEL LEVEL SENSOR
Component Removal and Installation.