2024年3月26日 · The ECM illuminates the MIL and stores a Diagnostic Trouble Code (DTC) if this malfunction is detected in consecutive drive cycles. The Canister Pump Module is attached to the EVAP Canister and contains the Canister Pressure Sensor, the Leak Detection Pump, and the Vent Valve. P2401 Code - Evaporative Emission Leak Detection Pump Stuck OFF

The P2401 code stands for “Evaporative Emission System Leak Detection Pump Control Circuit Low.” It’s set when the PCM detects the leak detection pump isn’t activating when requested. A failing leak detection pump, leaking vapor lines, and faulty wiring are some of the issues that could trigger the code.

The fault code P2401 indicates a problem with the evaporative emission system. The most common causes of this code are a faulty fuel cap, a leak in the fuel tank or fuel lines, or a malfunctioning purge valve.

2023年7月3日 · The P2401 error code indicates that there is a problem in the EVAP (evaporative emissions) system. This system is designed to prevent the release of fuel vapors into the atmosphere, and the P2401 code typically indicates a leak or blockage in the system.

The P2401 code primarily indicates a fault in the EVAP control circuit related to the leak detection pump in the evaporative emission system. Despite the lack of noticeable symptoms during driving, it's important to address the P2401 code promptly.

The P2401 trouble code is telling us the EVAP control circuit has had a fault with the leak detection pump. The leak detection pump is used by the ECM to pressurize the EVAP system to check for leaks that are present.

2025年2月15日 · The P2401 trouble code signifies an important issue within your vehicle’s evaporative emissions system that should not be overlooked. By understanding its meaning, symptoms, causes, and repair methods, vehicle owners and DIY mechanics can take proactive steps toward resolving this issue effectively.

What causes OBD-II fault code P2401? The Leak Detection Pump is part of the Evaporative Emissions System. After the vehicle has been sitting for a few hours, this pump will turn on and create a vacuum in the EVAP system. The engine computer (PCM) runs this test when the vehicle is …

Make: Ford Code: P2401 Definition: EVAP System Leak Detection Pump Control Circuit Low Description: This DTC sets when a concern is detected with the evaporative emission (EVAP) …

2024年3月26日 · Code P2401 Description 5 hours after the ignition switch is turned off, the leak detection pump creates negative pressure (vacuum) in the Evaporative Emission (EVAP) …