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 higher than 280℃ and lower than 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 higher than 0.06V and lower than 0.4V | ||
DiagnosticTime |
•
25 sec | ||
Case2 | Enable Conditions |
•
S2 sensor voltage is lower than0.1V | |
ThresholdValue |
•
S1 sensor voltage is higher than 0.06V and lower than 0.4V | ||
DiagnosticTime |
•
10 sec | ||
Case3 | Enable Conditions |
•
Continuous | |
ThresholdValue |
•
Counter of l ∆usvk > 2V during 0.04 sec after heater on→off l ≥ 5 times | ||
MIL ON Condition |
•
2 driving cycle | ||
※∆usvk : Sum of the signal voltage change value (S1)
