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DTC P0139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2): DTC Detecting Condition

Two consecutive driving cycles with fault
GENERAL DESCRIPTION Refer to DTC P0139 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 2) , Diagnostic Trouble Code (DTC) Detecting Criteria.

CAUTION: After repair or replacement of faulty parts, perform Clear Memory Mode Refer to OPERATION , Clear Memory Mode. and Inspection Mode Refer to PROCEDURE , Inspection Mode.