Hello I drive an opel Omega built in 2000.For some time now the ABS and TC lamps have been running off and the speedometer is running off.I called the ADAC and it could not help me either.So I went to the Bosch service.My car was hung up on a computer but they said they couldn’t find a mistake.But I was allowed to pay.So I put it in a workshop.But they couldn’t find anything.I’ve already looked for it on the internet but there are the different types of lights. now I have an appointment with Opel next week, but I would like to know what it can be and what it could cost.Because I’m also afraid that they will pull me off again as they did with the Bosch service.Please I need help or good advice quickly.