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
P0137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) Low
The P0137 code means the oxygen sensor after the catalytic converter keeps reporting a lower voltage than expected. Usual causes are an exhaust leak near the sensor, an open circuit or a worn-out sensor. The engine runs the same, but you cannot pass an emissions inspection.