OBD-II DTC · SAE J2012

P0041

Downstream Oxygen Sensors Swapped From Bank To Bank

O2 / Lambda → Depends on cause

What P0041 means

P0041 is a standard SAE J2012 powertrain diagnostic trouble code with the defined meaning: Downstream Oxygen Sensors Swapped From Bank To Bank. 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 P00xx family

P0001P0002P0003P0004P0005P0006P0007P0008P0009P0010P0011P0012