Question

On my 2005 Hyundai Accent 1.6L, what does the engine code P2406 mean?

Answer 1

The P2406 code means that you have an issue with the Evaporative Emission (EVAP) System Leak Detection Pump Sensor. A faulty Diagnostic Module Tank Leakage (DM-TL) is the most likely cause of the problem. Here is some more information:

P2406 Hyundai Code - Evaporative Emission System Leak Detection Pump Sensor Circuit High
Read more: https://www.autocodes.com/p2406_hyundai.html