HO2S Heater Control Circuit High Bank 2 Sensor 2
What it means
P0058 means the ECM detected an abnormally high voltage in the heater control circuit of the bank 2, sensor 2 oxygen sensor — the downstream sensor behind the catalytic converter. The heater brings the sensor up to temperature so it can monitor catalyst efficiency. A high-voltage fault usually points to a wiring short, a failed heater element, or a corroded connector. The engine runs normally, but emissions monitoring is affected.
Can I keep driving? Safe to drive — the engine runs normally. This is a downstream oxygen-sensor heater circuit fault, so expect a warning light and a possible failed emissions test until repaired.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Failed or incomplete emissions readiness / smog test
- Slightly reduced fuel economy
- Delayed closed-loop / catalyst monitoring
Common causes
Most likely first
- Short to voltage in the oxygen-sensor heater control circuitLikely
- Failed oxygen-sensor heater element (bank 2 sensor 2, downstream)Common
- Corroded or damaged connector or wiring at the sensorCommon
- Moisture or corrosion in the sensor connectionLess often
- Failed engine control module heater driver (rare)Less often
How to diagnose & fix
Work through it in order
- Scan and confirm the code, then locate the downstream sensor on bank 2.
- Inspect the connector and wiring for a short to voltage, corrosion, or moisture.
- Measure the sensor's heater resistance and compare against specification.
- Repair damaged wiring or clean corroded connections.
- Replace the oxygen sensor if the heater element has failed; check the ECM driver last.
FAQ
Quick answers
Is it safe to drive with P0058?+
Can I just clear P0058?+
Related codes
Read & clear P0058 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.