If there is a short circuit to ground under enable conditions, the ECM/PCM sets DTC P0131.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electric check. | 1. Poor connection 2. Short to ground in signal circuit 3. HO2S(S1) |
Enable Conditions |
•
Engine speed > 32rpm | |
Threshold Value |
•
Error bit information from HW circuit | |
Diagnostic Time |
•
Continuous. | |
Mil On Condition |
•
2 driving cycles. |
※ S1 : upstream oxygen sensor / S2 : downstream oxygen sensor
