Code Definition

P1441 — VC/V Bypass Valve

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Nissan

About P1441

P1441 is a manufacturer-specific powertrain diagnostic trouble code recorded for Nissan vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1441 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

On Nissan vehicles the Vacuum Cut Valve Bypass Valve, abbreviated VC/V bypass valve, is part of the evaporative emission (EVAP) system and works with the vacuum cut valve to control how the fuel tank is sealed and tested. The Engine Control Module (ECM) operates the bypass valve so the EVAP system can be evacuated and checked for leaks during its diagnostic routine. DTC P1441 sets when the ECM detects an electrical fault in the VC/V bypass valve circuit, such as an open or short, so the valve does not respond as commanded. Symptoms are generally limited to the check engine light, since this va...

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