LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hyundai >> 2021 >> Palisade Calligraphy, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (9 Of 9) >> DTC P2273-00: O2 Sensor Signal Stuck Rich (Bank 2 Sensor 2) >> DTC Information and Inspection >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Information and Inspection: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical Monitoring
  1. Poor Connector Connection
  2. Faulty Downstream O2 Sensor
Enable Condition
  • Fuel cut off is not activated
  • Full load is not activated (APS value is less than or equal to 90%)
  • Catalyst overheating prevention is not activated
  • Battery voltage is between 11V and 16V
Threshold Value
  • Downstream O2 Sensor Voltage less than 0.2V when lambda set point is 1.15
Diagnostic Time
  • 7 sec. after lambda set point shift to corresponding side
MIL ON Condition
  • 2 Driving Cycles
scientia non olet · About LEMON Manuals