If open in virtual ground circuit of downstream lambda sensor is detected, ECM sets DTC P22B200.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Voltage monitoring | 1. Poor connector connection 2. Open in virtual ground circuit of downstream lambda sensor 3. Faulty downstream lambda sensor | |
Enable Condition |
•
Engine running | ||
Threshold Value |
•
Open in virtual ground line | ||
Detecting Time |
•
2 sec | ||
Fail Safe | MIL |
•
On | |
LNT Regeneration OFF |
•
Yes | ||
