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
- Medium
- Can I keep driving?
- Yes, but with caution
- Estimated cost
- $60 to $300
- 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
P2455 Diesel Particulate Filter Pressure Sensor A Circuit High Medium
The P2455 code means the signal from the diesel particulate filter pressure sensor is above its maximum expected value. An open circuit or a broken ground is the usual cause, and a loose connector is the most common culprit. Drive with caution, because the filter may not regenerate.