When abnormal sensor signal voltage is detected under enable condition, ECM sets DTC P0130 and tuns the MIL on.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Rationality check | 1. Poor connector connection 2. Short/open in upstream O2 sensor signal circuit 3. Faulty upstream O2 sensor | |
General Enable Condition |
•
30 sec. elapsed after upstream dew point end detected
•
Fuel feedback control active
•
Battery voltage is higher than 11V
•
Exhaust gas temperature is at between 400℃(752℉) and 800℃(1472℉)
•
No injector error
•
No upstream O2 sensor heater error | ||
Enable Condition | Case 1 |
•
Downstream O2 sensor voltage is higher than 0.6V | |
Case 2 |
•
Downstream O2 sensor voltage is lower than 0.1V | ||
Case 3 |
•
- | ||
Threshold Value | Case 1 |
•
Upstream O2 sensor voltage is at between 0.06V and 0.4V | |
Case 2 |
•
Upstream O2 sensor voltage is at between 0.06V and 1.15V | ||
Case 3 |
•
frequency of heater pulse coupling to sensor signal is more than 5 times per every 10 heating pulses | ||
Diagnostic Time | Case 1 |
•
25 sec. | |
Case 2 |
•
10 sec. | ||
Case 3 |
•
- | ||
MIL ON Condition |
•
3 driving cycles | ||
