P22A1 Fault Code
P22A1 NOx Sensor #2: Short Circuit Low
Component / System
NOx #2 Sensor - Short Circuit
Monitor Strategy Description
NOx Sensor Short Circuit
Fault Limit
Time with bad signal quality > 5 seconds
Enable Conditions
Key On Active
Battery Voltage > 8V
Disable Conditions
No Active DTC's:
U029E
Time Required For P22A1 DTC To Be Set
10 seconds
MIL Illumination
2 Drive Cycles
Don't forget ! When a fault code pops up, Volvo's Uptime Center is automatically notified via an cellular link, and it alerts the truck's owner by prearranged methods, usually email or phone calls.
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