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
- High
- Can I keep driving?
- Yes, but with caution
- Estimated cost
- $40 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
P0555 Brake Booster Pressure Sensor Circuit High
The P0555 code means the computer found an electrical fault in the brake booster pressure sensor circuit. The main risk is a possible loss of brake assist. A damaged or corroded connector is the most common cause, but always check that the brake pedal still has normal assist.