DTC P2237 Ho2S Pumping Current Circuit/Open-Bank 1, Sensor 1: DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition	Possible Cause
DTC Strategy	Open circuit check of front HO2S circuit	Contact resistance in connectors Open or Short to ground in HO2S circuit Front HO2S
Enable Conditions	No relevant failure
Threshold Value	0.9941 < Lambda < 1.0059
Diagnostic Time	Below 1300 sec.