P2204moderate severityPowertrain
NOx Sensor Circuit Intermittent Bank 1
on 2012 Acura RL 3.5L V6 · AWD
What this code means
Intermittent signal from the NOx sensor on bank 1.
Symptoms
- Intermittent check engine light
- Erratic SCR operation
Common causes
- Loose connection
- Damaged wiring
- Sensor connector moisture ingress
Diagnostic steps
- Wiggle test wiring and connector
- Check for water intrusion
- Monitor signal stability
Repair notes
Clean and secure connector. Replace sensor or repair wiring if intermittent.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1