P0051
Moderate
Powertrain
HO2S Heater Control Circuit (Bank 2 Sensor 1)
Common Causes
Failed Bank 2 upstream O2 sensor heater
Blown fuse
Open heater circuit wiring
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Quick Info
| Code | P0051 |
| System | Powertrain |
| Severity | Moderate |
Disclaimer
This information is for diagnostic guidance only. Always verify repairs with a qualified technician before performing safety-critical work.
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