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Buick
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1997
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Century V6-3100 3.1L VIN M SFI
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Repair and Diagnosis
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Accessories and Optional Equipment
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Antitheft and Alarm Systems
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Description and Operation
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System Components
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Theft Deterrent Relay
Theft Deterrent Relay
The theft deterrent relay is directly hard-wired to the Body Control Module
(BCM)
and the starter motor. This relay "opens" or "closes" the circuit to the starter motor "S" terminal depending on the command sent by the BCM.