no connection to computer , under dash or under hood.

1996 MERCEDES BENZ 280
162 MILES
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DANS BENZ
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jumper started a car, a few weeks later started loosing power on freeway and began to run rough, let it sit a few days went to start it and battery was dead. put charger on it fired it up and car ran smooth. a few weeks later my speedo went and my abs , asr and brakes low lights went on. tried to get codes ... no read out says no connection. check fuses under hood , all ok. need help. will another computer from same model and same #s on computer work ? does it need to get programmed ? or just disconnect batt, and replace computer ?
Jun 25, 2012 at 11:53 PM
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RASMATAZ
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Have the electrical system checked for a short circuit and also the charging system checked-it takes about 11volts or higher to power the computer to effectively operate accordingly- put a hold on a replacement computer
Jun 26, 2012 at 12:07 AM
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DANS BENZ
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charging system good, never had a problem with it. had it checked. car runs great, but i gotta find out if the other computer will and does it have to be programmed or just change it.
Jun 26, 2012 at 12:43 AM
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RASMATAZ
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Computer, it depends as you wish
Jun 26, 2012 at 1:01 AM