If ECM detects that the output signal satisfies the threshold values under enable conditions, ECM sets DTC P0130.
(This DTC might be caused by the malfunction of Heater circuit, so, check the heater circuit first.)
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Rationality check | 1. Poor connection 2. Open or short power/ground in signal circuit 3. S1 | |
General Enable Conditions |
•
Dew point end detected
•
Fuel feed back control active
•
Battery voltage is higher than 11V
•
Exhaust Gas temperature is between 280℃ and 800℃.
•
No injector error
•
No upstream O2 sensor heater error | ||
Case1 | Enable Conditions |
•
S2 sensor voltage is higher than 0.5V | |
ThresholdValue |
•
S1 sensor voltage is between 0.06V and 0.4V | ||
DiagnosticTime |
•
25 sec. | ||
Case2 | Enable Conditions |
•
S2 sensor voltage is lower than0.1V | |
ThresholdValue |
•
S1 sensor voltage is between 0.06V and 0.4V | ||
DiagnosticTime |
•
10 sec. | ||
Case3 | Enable Conditions |
•
Continuous | |
ThresholdValue |
•
The number of that the absolute value of ∆usvk is greater than 2V during 0.04 sec after turning on and off a heater is more than or equal to 5 times. | ||
MIL ON Condition |
•
3 driving cycle | ||
※ ∆usvk : Sum of the signal voltage change value (S1)
