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
- $60 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
P2406 Evaporative Emission System Leak Detection Pump Sense Circuit High Low
The P2406 code means the signal from the sensor inside the EVAP leak detection pump is above its maximum expected value. It usually comes from an open circuit or a broken ground, and a loose connector is the most common culprit. The car drives normally, but the EVAP monitor cannot finish.