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
P0156 O2 Sensor Circuit Malfunction (Bank 2 Sensor 2) Low
The P0156 code means the computer found an electrical fault in the bank 2 sensor 2 oxygen sensor circuit. The most common culprits are a damaged connector, wiring burned by the exhaust, or the sensor itself. It rarely affects how the car drives, but it will keep you from passing an emissions test.