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Home >> Genesis >> 2021 >> G80 2.5T Advanced, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.5L (3 Of 6) >> DTC P0420-00: Catalyst System Efficiency Below Threshold (Bank 1) >> DTC Information And Inspection >> Component Inspection >> Downstream O2 Sensor Signal Inspection
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Downstream O2 Sensor Signal Inspection

Item Normal Value Prerequisite Condition Probe (+) Probe (-)
Signal circuit voltage Refer to below figure
G15556297Courtesy of HYUNDAI MOTOR AMERICA
G15556298Courtesy of HYUNDAI MOTOR AMERICA
G15556299Courtesy of HYUNDAI MOTOR AMERICA
 Signal circuit terminal Ground circuit terminal
G15556300Courtesy of HYUNDAI MOTOR AMERICA
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