What's the 1425 mercedes code?

The 1425 code sets on a Mercedes when an implausible speed message is being broadcast by the ABS module. It could be a module issue, tire size difference, or a wiring problem, but the most likely cause would be a failed wheel speed sensor. A wheel speed sensor or vehicle speed sensor (VSS) is a type of tachometer. It is a sender device used for reading the speed of a vehicle's wheELRotation. It usually consists of a toothed ring and pickup.Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears within the transmission.