P2253 P2253 code definition O2 (Oxygen) Sensor Negative Current Control Circuit High Bank1 Sensor 1 What the P2253 code means P2253 is a generic OBD2 diagnostic trouble code (DTC) (https://www.yourmechanic.com/article/what-is-the-on-board-diagnostics-obd-system) indicating a fault with the bank 1 sensor 1 O2...