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P0038 — O2 Sensor Heater Circuit High (Bank 1 Sensor 2)

High voltage in downstream O2 sensor heater circuit.

Severity: MediumRepair: $80-$250Difficulty: Easy

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Common symptoms of P0038

Common causes of P0038

Repair cost & difficulty

Typical cost to fix P0038: $80-$250 · Difficulty: Easy

Pro tip: Inspect wiring for shorts along exhaust routing.

Vehicles commonly affected

All makes

Related trouble codes

P0036P0037

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.