DTC P0461 (2019 2020 2021)

DTC P0461:  Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Range/Performance Problem

General Description 

Courtesy of HONDA, U.S.A., INC.

The fuel level sensor is incorporated with the fuel pump and installed in the fuel tank. Using a built-in potentiometer and float, it converts the movement of the float into electrical signals that correspond to the fuel level, and it indicates the amount of fuel in the fuel tank. If the powertrain control module (PCM) receives no change in the fuel level sensor output after driving for a specified number of miles, it detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type 

Execution	Once per driving cycle
Sequence	None
Duration	-
DTC Type	One drive cycle, MIL off

Enable Conditions 

Condition	Minimum	Maximum
Mileage	125 miles (200 km)	-
Other	Test-drive on a flat road to avoid misdetection
	No refueling is required

Malfunction Threshold 

The change in the fuel level sensor output [ FUEL Level] is 3.5 % or less.

Possible Cause 

Confirmation Procedure 

Operating Condition 

Drive for 125 miles (200 km) or more under Enable Conditions (see "Other") without refueling (accepts the vehicle to the OFF (LOCK) mode during the test drive).

• Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

With the HDS 

None.

Diagnosis Details 

Conditions for setting the DTC 

When a malfunction is detected in a certain drive cycle and a malfunction is detected in the same drive cycle, a Pending DTC, a Confirmed DTC, the freeze data, and the on-board snapshot are stored in the PCM memory. The MIL does not come on.

Conditions for clearing the DTC 

The Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.