DTC Detecting Condition:

Detected when two consecutive driving cycles with fault occur.
GENERAL DESCRIPTION <Ref. to DTC P2271: O2 SENSOR SIGNAL BIASED/STUCK RICH (BANK 1 SENSOR 2) , Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION: After servicing or replacing faulty parts, perform Clear Memor Mode <Ref. to OPERATION OPERATION, Clear Memory Mode.> and Inspection Mode<Ref. to PROCEDURE , Inspection Mode.>