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Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Engine Control System - Diagnostic Codes (P2135-P2418)) >> SFI System >> DTC P2270-19: A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 Circuit Current Above Threshold; DTC P2271-18: A/F (O2) Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2 Circuit Current Below Threshold [11/2021 - 03/2022] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Inspect the fuses for circuits related to this system before performing the following procedure.

HINT: