Possible Causes of P115B Code
The P115B code can be triggered by several factors, including:
- Insufficient fuel level
- Faulty fuel level sensor
- Open or short circuit in the fuel level sensor wiring harness
- Poor electrical connection in the fuel level sensor circuit
How to Fix P115B Code on a FORD Vehicle?
- Preliminary Check
- Ensure the tank contains sufficient fuel.
- Visually inspect the fuel level sensor and its circuits.
- Wiring and Connection Inspection
- Check the wiring harness for any cut, burned, or short-circuited wires.
- Examine the connectors for any damaged, bent, or corroded pins.
- Sensor Testing and Replacement
- If no abnormalities are detected in the circuits, the fuel level sensor may be at fault.
- Replace the sensor if necessary, clear the error codes, and test the vehicle.
Possible Symptoms
- Illuminated engine light (“Check Engine”) or engine service warning light soon.
Meaning of P115B Code FORD
The Powertrain Control Module (PCM) receives fuel level information via the instrument cluster. If the PCM detects an excessively low fuel level, it may limit the Fuel Rail Pressure (FRP), which can affect engine performance.