P0030
Moderate
Powertrain
HO2S Heater Control Circuit (Bank 1 Sensor 1)
Common Causes
Failed upstream O2 sensor heater element
Blown fuse for O2 heater circuit
Open wiring to sensor heater
Faulty PCM driver
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Quick Info
| Code | P0030 |
| 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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