Operation CHARM
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2001
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Eldorado V8-4.6L VIN Y
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Body Control Module
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Description and Operation
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Content Theft Deterrent (CTD)
Content Theft Deterrent (CTD)
A discrete inputs to the
BCM
arms and disarms the CTD. The CTD system detects unauthorized vehicle entry and cycles the horns and the exterior lamps on and off in order to deter theft.