If there is a short circuit to ground under enable conditions, the ECM sets DTC P0131.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical check | 1. Poor connection 2. Short to ground in signal circuit 3. S1 |
Enable Conditions |
•
Dew point end detected
•
Fuel feed back control active
•
Battery voltage > 11V
•
Exhaust Gas temperature = 280°C~800°C(536°F~1472°F)
•
No injector error
•
No upstream O2 sensor heater error | |
Threshold Value |
•
Short circuit to ground | |
Diagnostic Time |
•
Continuous | |
MIL ON Condition |
•
2 driving cycles |
※ S1 : upstream oxygen sensor / S2 : downstream oxygen sensor
