If the analog signal for the O2 ratio from the sensor after PT1 filtering, during the calibration is below the minimum threshold value, ECM sets DTC P22B600.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal monitoring | 1. Poor connector connection 2. Faulty rear lambda sensor circuit 3. Defected rear lambda sensor | |
Enable Condition |
•
Engine running | ||
Threshold Value |
•
Analog signal for the O2 ratio from the sensor after PT1 filtering during calibration is below minimum threshold value | ||
Detecting Time |
•
- | ||
Fail Safe | Engine OFF |
•
No | |
EGR OFF |
•
No | ||
Torque Limit |
•
No | ||
MIL |
•
Off | ||
