P0038low severityPowertrain
HO2S Heater Control Circuit High Bank 1 Sensor 2
on 2017 Audi R8 5.2L V10 (Gen 2, 562hp) · AWD
What this code means
The voltage in the Bank 1 Sensor 2 O2 heater circuit is higher than expected.
Symptoms
- Check Engine Light
- Possible overheating
Common causes
- Short to power
- Faulty sensor
- Relay issue
Diagnostic steps
- Test heater voltage
- Check for shorts to power
- Test resistance
Repair notes
Repair short or replace sensor.
Other Powertrain codes on this vehicle
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P0002
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P0010
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P0015
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