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Originally Posted by tman2093
ponch, not sure what you plan to tell from the security light being on, mine rarely goes off.
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If the light stays on, the car is in "alarm fail mode". Somewhere there is a problems with the VATS system. Usually this is a broken wire up inside the cyl. lock.
Since so many of these systems started have problems back in the early 80's, GM made a program change on the system where if certain "wrong" conditions were met, it would go into a mode where the light would stay on but you could start the car and drive it. Unfortunately, this doesn't always work as planned.
tman, aren't you a GM tech or something????