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Home >> Hyundai >> 2024 >> Palisade Calligraphy, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (5 Of 9) >> DTC P0420-00: Catalyst System Efficiency Below Threshold (Bank 1) >> DTC Information and Inspection >> Component Inspection >> Downstream O2 Sensor Signal Inspection

Downstream O2 Sensor Signal Inspection

Item Normal Value Prerequisite Condition Probe (+) Probe (-)
Signal circuit voltage Refer to below figure
G15501066Courtesy of HYUNDAI MOTOR AMERICA
G15501067Courtesy of HYUNDAI MOTOR AMERICA
G15501068Courtesy of HYUNDAI MOTOR AMERICA
 Signal circuit terminal Ground circuit terminal
G15501069Courtesy of HYUNDAI MOTOR AMERICA
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