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The car is equiped with a security feature that will automaticall shut down the engine when activated. Your ignition key has a resitor chip on it, and when you insert the key into the ignition the computer measures the resistance to make sure it is the right key. If someone tries to start the car with a key that does not have the right resistance it will not start. If your key gets wet or if moisture builds uo inside the ignintion switch, it will slightly alter the resistance and the computer may not let the car start. If the resistance is close, the car will still run but the security light will remain on.

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โˆ™ 2005-04-01 14:12:27
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Q: What does the security light on a 1994 Grand Prix mean?
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