FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Cadillac
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1999
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DeVille Concours V8-4.6L VIN 9
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Repair and Diagnosis
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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 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.