LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hyundai >> 2009 >> Genesis 4.6 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTC Troubleshooting Procedures (Fuel System (G8BA - GSL 4.6)) (1 Of 2) >> DTC P0154: O2 Sensor Circuit No Activity Detected (Bank 2/Sensor 1) >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0154: O2 Sensor Circuit No Activity Detected (Bank 2/Sensor 1): DTC Detecting Condition

DTC P0154 DETECTING CONDITION TABLE

Item Detecting Condition Possible cause
DTC Strategy
  • Monitor signal voltage
  • Poor connection
  • Open in harness
  • HO2S (B2/S1)
  • ECM
General Enable Conditions
  • Target lambda = 1
  • Battery voltage > 10.7V
  • Exhaust gas temperature (model) <900C
  • Upstream O2S Heater control On
Case 1 Enable Conditions
  • Downstream O2S voltage > 0.55V
  • Dew point end check
Threshold value
  • 0.6V <Upstream O2S voltage <1 08V
Diagnostic Time
  • 15 sec
Case2 Enable Conditions
  • Downstream O2S voltage <0.1V
  • Dew point end check
Threshold value
  • 0.6V <Upstream O2S voltage <1 08V
Diagnostic Time
  • 10 sec
Case3 Enable Conditions
  • Time after dew point end detected > 10 sec
Threshold value
  • Counter of Δ 'Upstream O2S voltage' > 2V during 0.04 sec after heater on->off > 5 times
MIL On Condition
  • 2 Driving Cycles
scientia non olet · About LEMON Manuals