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Most likely cause is a faulty "driver" in the Body Control Module Very common problem for these cars Must be changed and programmed by the dealer About 400 Canadian if out of warranty

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โˆ™ 2005-11-24 23:29:34
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Q: Why would the headlights dash lights and the security light come on in a Saturn L200 when the car has been on for an hour or more?
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I do not have an answer, but I do have the same problem as you do. I have a 2001 L200, and from the moment you start the engine, every few seconds, the security light will flash and the temperature and gas gauge needles will act as if you turned off the car, and then pop back up where they should be. When the headlights are on, the dash lights will flash along with the security light and the gauges. The headlights and radio are not affected, though. In addition to that, the odometer has also stopped working. It has read the same milage since I noticed some time ago. I will let you know if I find out anything.

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