Mercedes Benz repair: ABS problem, mercedes vito, electronic problem

Question
Hi, i have a Mercedes Vito with a problem with ABS. The light is ON. If i press the brake pedal with key turned of and then turn it ON, the light is off until I release the brake pedal. In this situation the light goes on. Someone told me it has 102 code error. Can you help me? Is it hidraulic or electronic problem?

Answer
More than likely an electrical problem. The reason is that upon switching the key you are temporarily resetting the electrical part.
Vito is a Euro version . Let me see if I can find a code 102 and see what appears.
Since this is Euro Version I cannot be sure that I will find anything , but let me see
Ralph
Miami Auto Help Inc