DTC P0030 Ho2S Heater Control Circuit (Bank 1 / Sensor 1): DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSES

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