P0461

DTC P0461: Fuel Level Sensor Performance

Wiring Diagram:

Circuit Description
The Engine Control Module (ECM) uses the signal from the fuel level sensor to calculate expected vapor pressure within the fuel system. Vapor pressure varies as the fuel level changes. The fuel level signal is also used to determine if the fuel level is too high or too low to be able to detect Evaporative (EVAP) emission system faults. This DTC indicates the fuel level stuck.

Conditions for Setting the DTC
- Ignition ON.
- Vehicle speed is greater than 30 km/h (18.64 mph).
- Fuel than level is between 6.5 and 55 L.

Action Taken When the DTC Sets
- The Malfunction Indicator Lamp (MIL) will illuminate.
- The ECM will record operating conditions at the time the diagnostic fails. This information will be stored in Failure Records buffers.
- A history DTC is stored.

Conditions for Clearing the MIL/DTC
- The MIL will turn OFF at the end of 3 consecutive ignition cycles in which the diagnostic runs without a fault.
- A history DTC will clear after 40 consecutive warm up cycles without a fault.
- DTC(s) can be cleared by using a scan tool.

Diagnostic Aids
An intermittent may be caused by a poor connection, rubbed-through wire insulation or a wire broken inside the rubber. Check for a poor connection or damaged ECM harness. Inspect the fuel level circuit terminal for the following conditions:
- Improper mating.
- Broken locks.
- Improperly formed.
- Damaged terminals.
- Poor terminal-to-wire connection.
- Damaged harness.

Step 1 - 2:

Step 4 - 11:

DTC Troubleshooting