The check engine light has been going on and off randomly since the car was 3 months old. purchased new. told by a dealer in reno and a dealer in las vegas that it was nothing, they could not find a problem. now after replacing the air conditioner condenser, and a new engine the whole body control module is going crazy. the whole panel goes on and off - abs light, engine check light, air bag light, etc, the speedometer gauges etc--sometimes they work other times they shut down. this is dangerous not knowing your correct speed or if there is a problem with the automobile. both automatic sliding doors quit a year ago and the lock on the passenger slider door quit working. *tr