This DTC sets when the actual oxygen sensor voltage exceeds the maximum expected voltage threshold for a specified amount of time.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Signal check, high | 1. Poor connection 2. Open in signal circuit 3. S1 |
Enable Conditions |
•
Fuel cut condition
•
Sensor Ceramic Temp > 720 ℃(1328 °F)
•
Exhaust Gas Temp < 750 ℃(1382 °F) | |
Threshold Value |
•
Sensor voltage > 4.8 V | |
Diagnostic Time |
•
Immediate | |
MIL ON Condition |
•
2 Driving Cycles |
※ S1 : upstream oxygen sensor / S2 : downstream oxygen sensor
