Nissan GT-R (R35) · Service Manual ENGINE

P0461 FUEL LEVEL SENSOR

VR38

P0461

Description


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 through 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 Logic

 
 DTC DETECTION 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. Refer to DTC Logic (GT-R certified NISSAN dealer).

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 No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0461
Fuel level sensor circuit range/performance
The output signal of the fuel level sensor does not change within the specified range even though the vehicle has been driven a long distance.
  • Harness or connectors
    (The CAN communication line is open or shorted)
  • Harness or connectors
    (The sensor circuit is open or shorted)
  • Combination meter
  • Fuel level sensor

 
 DTC CONFIRMATION PROCEDURE


 
 1.PERFORM COMPONENT FUNCTION CHECK

Component Function Check


 
 1.PRECONDITIONING
 
 2.PERFORM COMPONENT FUNCTION CHECK
 
 3.PERFORM COMPONENT FUNCTION CHECK

Diagnosis Procedure


 
 1.CHECK DTC WITH “COMBINATION METER”
 
 2.CHECK INTERMITTENT INCIDENT