Multi-code OBD2 diagnosis
Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.
Summary
- Overall severity
- Low
- Can I keep driving?
- Yes, no immediate risk
- Estimated cost
- $50 to $400
- Codes analyzed
- 1 of 1
The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.
Order of inspection
P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2) Low
The P0038 code means the control side of the heater circuit on the oxygen sensor behind the catalytic converter is reading high voltage. An open heater element is the most likely cause, but because the sensor hangs under the vehicle, the wiring deserves as much attention as the part.