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Home >> Infiniti >> 2017 >> QX30 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (5 Of 5) >> DTC/Circuit Diagnosis >> DTC P2243: A/F Sensor >> DTC Description >> DTC Detection Logic

DTC Detection Logic

DTC No. CONSULT screen terms DTC detecting condition
(Trouble diagnosis content) Malfunction type
P2243 00 O2 SENSOR REF VOLTAGE B1 SEN 1
(O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1)
NO SUBTYPE INFORMATION The reference voltage connection of oxygen sensor 1 (cylinder bank 1) has an electrical malfunction or open circuit.