P0041moderate severityPowertrain
O2 Sensor Signals Swapped Bank 1 Sensor 2 / Bank 2 Sensor 2
on 2017 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
The downstream O2 sensor signals for Bank 1 and Bank 2 appear to be swapped.
Symptoms
- Check Engine Light
- Incorrect catalyst monitoring
- Failed emissions
Common causes
- Sensor connectors swapped
- Wiring crossed after service
Diagnostic steps
- Verify downstream sensor connections
- Trace wiring to PCM
Repair notes
Correct the sensor connector routing.
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