OBD-II DTC · SAE J2012

P2401

EVAP Leak Detection Pump Ctrl Circ Low

Powertrain → Depends on cause

What P2401 means

P2401 is a standard SAE J2012 powertrain diagnostic trouble code with the defined meaning: EVAP Leak Detection Pump Ctrl Circ Low. This is the OEM-agnostic definition; specific manufacturer interpretation may add detail (subsystem, bank, sensor location) but the core meaning is consistent across all OBD-II compliant vehicles since 1996.

Can this code be suppressed via ECU tuning?

Whether this code is safe to suppress depends on the underlying cause. Diagnose first, suppress only after confirming the mechanical issue is benign or rectified.

Related codes in the P24xx family

P2400P2402P2403P2404P2405P2406P2407P2408P2409P2410P2411P2412