DTC P0037 Ho2S Heater Circuit Low (Bank 1/Sensor 2): DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSES

Item	Detecting Condition	Possible Cause
DTC Strategy	Heater check low	Poor connection Short to ground in control circuit B1S2 ECM/PCM
Enable Conditions
Threshold Value	Short to ground
Diagnostic Time	Continuous
MIL ON Condition	2 driving cycle
* B1S1: upstream oxygen sensor/B1S2: downstream oxygen sensor