To compare front and rear lambda sensor signal, ECM determines defected lambda sensor unit by monitoring lambda sensor signal dynamics. If error is detected ECM sets DTC P014D00.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Plausibility monitoring | 1. Faulty front lambda sensor circuit 2. Defected front lambda sensor | |
Enable Condition |
•
Engine running | ||
Threshold Value |
•
Signal error on front lambda sensor compare to rear lambda sensor signal | ||
Detecting Time |
•
- | ||
Fail Safe | Engine OFF |
•
No | |
EGR OFF |
•
No | ||
Torque Limit |
•
No | ||
MIL |
•
On | ||
