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P0461 FUEL LEVEL SENSOR EC-1361 < COMPONENT DIAGNOSIS > [VQ35DE] C D E F G H I J K L M A EC N P O P0461 FUEL LEVEL SENSOR Description INFOID:0000000004362195 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 combina- tion 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 volt- age changes depending on the movement of the fuel mechanical float. DTC Logic INFOID:0000000004362196 DTC DETECTION LOGIC NOTE: • If DTC P0461 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. Refer to • If DTC P0461 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer . 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 EC-1361, "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. YES >> INSPECTION END NO >> Go to EC-1362, "Diagnosis Procedure" Component Function Check INFOID:0000000004362197 1. PRECONDITIONING WARNING: When performing the following procedure, always observe the handling of the fuel. Refer to TESTING CONDITION: Before starting component function check, preparation of draining fuel and refilling fuel is required. YES >> GO TO 2. NO >> GO TO 3. 2. PERFORM COMPONENT FUNCTION CHECK With CONSULT-III NOTE: 8 Imp gal) in advance. DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0461 Fuel level sensor circuit The output signal of the fuel level sensor does • Harness or connectors (The CAN communication line is open or • Harness or connectors (The sensor circuit is open or shorted.) • Combination meter |