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
- $15 to $150
- 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
P0504 Brake Switch A/B Correlation Medium
The P0504 code indicates that the two signals from the brake pedal switch do not agree. It is usually caused by the switch itself, its adjustment or the rubber pedal stop. Cruise control stops working while the code is active.