When the ECM/PCM detects short to power in the HO2S(S2) heater control circuit, ECM/PCM sets DTC P0038.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical check | 1. Poor connection 2. Short to power in control circuit 3. HO2S(S2) |
Enable Conditions |
•
Engine speed is higher than 240rpm | |
Threshold Value |
•
Short to B+ | |
Diagnostic Time |
•
Continuous | |
Mil On Condition |
•
3 driving cycles |
※ S1 : upstream oxygen sensor / S2 : downstream oxygen sensor
