Fiat Ulysse JTD 2.2 ESP / Exhaust gas detoxification defective

Hello, was with my Ullysse in the washing machine and after about 10 further km the error message ESP / APS and exhaust gas detoxification system defective+ particle filters quickly possible regenerate. I then left the battery stuck off for a while. After again clamp and first test came only the message particle filters quickly possible regenerate. When the car was then really warm, the other messages also came back. After the message ESP / APS defective the car drives only with 1/4 power. Can someone please tell me what is defective or has someone already made similar experiences with washing machines ?? The air conditioning was in operation before the washing machine about 40min. I have the assumption that some plug is wet and causes trouble. But which and where ???? Thank you.