19182 Error Code

There are 2 kind of error description.

Description:

57 Reverting valve (4-2way valve?) electrically - Short circuit to ground - P20A2 Vent valve (Reductant Purge Control Valve) Short circuit low

Reverting valve (4-2way valve?) electrically - Short circuit to ground - P20A2 Vent valve (Reductant Purge Control Valve) -short circuit low