P0154moderate severityPowertrain
O2 Sensor Circuit No Activity Bank 2 Sensor 1
on 2017 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
No switching activity from the upstream O2 sensor on Bank 2.
Symptoms
- Check Engine Light
- Poor fuel economy
Common causes
- Faulty sensor
- Heater failure
- Wiring open
Diagnostic steps
- Test sensor signal
- Check heater
- Inspect wiring
Repair notes
Replace O2 sensor.
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