Have a bad BCM on my car. Has all the typical problems that you get, not starting in warm weather, flickering lights, dash gauges not working. Bought a new one and took it to a GM dealer to get it programmed. They said the programming failed because the cars security system kept rejecting the new BCM, it couldnt get by the pass-lock thing. Is there any way to get around it? Its a GM dealer, but they don't know Saturns super well, and they said they have no idea what to do. Please help. The BCM is getting so bad that I cant even run heat in my car this winter, or it wont start again if I stop and get gas or anything. thanks
Take it to an accredited service center that has experience on your make of car and discuss the problem with them
SOURCE: Saturn wont start
Hi,
Intermittent problem such as what appears that your car has is at best be describe as a test of patience.
Initially would appear to be electrically related. Based on your post/description, pls try and check the ignition wiring (going to the ignition switch behind the tilt lever) along the steering column.
Of course the normal checks should also be considered, battery, battery cables, fuse and fuse box (both in the engine bay and driver side of the center console), relay bank, harness and connectors. Manual cleaning and a spray of electrical contact cleaners should also be performed when in doubt.
Though the technically correct procedure would be to have your car's computer checked/scanned and the readings interpreted.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
SOURCE: SL2 ? 2000 starting problem
I had the same problem at one time and what the problem was is a short or an exposed wire connected to the starter which causes the voltage to fluctuate which in turn activates a security feature that stops the flow of fuel to the injectors. The car actually senses the possibility of a spark which could possibly ignite the fuel and be a fire hazard. If you turn the ignition on and off repeatedly after a certain amount of time the car will start and run fine. It is a very intermittent problem.
SOURCE: possible bad alternator?
I went through three alternators before we found a good one for our saturn sl2. Now she has been good for two years. All I did was go back to where we bought it from, they hooked up the alternator to a machine and gave us a new one when it read that it was faulty.
SOURCE: Car died, lights on dash flicker on and off as well as radio
Battery failed.Or alternator problem.Recharge the battery then try..If red light is sill on when car is running then the alternator needs replacing
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But i dont see how a short or hardly any of these problems could be caused only when the car is hot? It is very regular that way. Cold start in morning, no problem. But the whole rest of the day, unless its been in the shade with the windows down....maybe. I been taking the BCM out and putting it in freezer often, and it works every time then. Any thoughts on that?
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