P0057
HO2S Heater Control Circuit Low Bank 2 Sensor 2
Generic code
Fuel and Air Metering
Medium severity
Moderate repair
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What P0057 means
- The fault code P0057 indicates that there is a problem with the heater circuit of the oxygen sensor located on Bank 2, Sensor 2. This may cause the engine to run inefficiently or produce higher emissions.
Possible symptoms
- Illuminated check engine light
- Reduced fuel efficiency
- Increased emissions
- Rough idle or stalling
Possible causes
- Failed oxygen sensor heater element
- Faulty wiring or connections in the circuit
- Loose or corroded electrical connections
- Failed engine control module (ECM)
Related parts
- Heated Oxygen Sensor: This is one of the parts that fails very commonly. It measures the amount of oxygen to ensure proper combustion. Problems in the Oxygen Sensor lead to poor fuel economy
Possible solutions
- Replace the oxygen sensor
- Check and repair any damaged wiring or connections
- Tighten or clean any loose or corroded electrical connections
- Replace the engine control module (ECM) if necessary
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P0057 on OBD DashX
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