Operation CHARM
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Cadillac
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1998
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DeVille V8-4.6L VIN Y
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Powertrain Management
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Computers and Control Systems
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Relays and Modules - Computers and Control Systems
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Body Control Module
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Description and Operation
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Universal Theft Deterrent (UTD)
Universal Theft Deterrent (UTD)
A discrete inputs to the
Body Control Module
(PZM)
arms and disarms the UTD. The UTD system detects unauthorized vehicle entry and cycles the horns and the exterior lamps on and off in order to deter theft.