P0059
HO2S Heater Resistance Bank 2 Sensor 1
Generic code
Fuel and Air Metering
Medium severity
Moderate repair
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What P0059 means
- The fault code P0059 indicates that there is an issue with the heater resistance circuit for the upstream oxygen sensor on bank 2 of the engine. This may cause the engine to run poorly or not start at all.
Possible symptoms
- Illuminated check engine light
- Poor engine performance
- Rough idle or stalling
- Reduced engine power or acceleration
Possible causes
- Failed oxygen sensor heater
- Faulty wiring or connections in the heater 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 in the heater circuit
- Tighten or clean any loose or corroded electrical connections
- Replace the engine control module (ECM) if necessary
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P0059 on OBD DashX
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