DTC P2196 Ho2S Signal Stuck Rich (Bank 1/Sensor 1): DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition	Possible Cause
DTC Strategy	Sensor characteristic line shifted to Rich	Contact resistance in connectors Front HO2S
Enable Conditions	No relevant failure No misfire detected Fuel Trim control active
Threshold Value	When PCM recognizes rich shift of front HO2S
Diagnostic Time	Below 1300 sec.