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Home >> Infiniti >> 2016 >> Q50 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (Except Hybrid) (2 Of 5) >> DTC/Circuit Diagnosis >> DTC P0140: O2 Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC No. CONSULT screen terms DTC detecting condition
DTC
(Trouble diagnosis content)		 Malfunction type
P0140 O2 SENSOR B1 SENSOR 2
(O2 sensor circuit no activity detected bank 1 sensor 2)		 CIRCUIT OPEN The signal of oxygen sensor (cylinder bank 1) does not change. There is an open circuit.
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