P0154
O2 Sensor Circuit No Activity Bank 2 Sensor 1
2012-2015 BMW 320i 2.0L I4 Turbo N20
Moderate SeverityPowertrainGeneric (SAE)
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0154 on Other Vehicles
Common Questions
What does code P0154 mean on a 2012-2015 BMW 320i?
P0154 stands for "O2 Sensor Circuit No Activity Bank 2 Sensor 1". No switching activity from the upstream O2 sensor on Bank 2.
What are the symptoms of P0154 on a BMW 320i?
Common symptoms of P0154 include: Check Engine Light, Poor fuel economy.
What causes P0154 on a 2012-2015 BMW 320i?
Common causes of P0154 include: Faulty sensor, Heater failure, Wiring open.