Operation CHARM
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1999
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Riviera V6-3.8L SC VIN 1
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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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Vehicle Theft Deterrent (VTD)
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General Description
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Theft Deterrent Relay
Theft Deterrent Relay
The
theft deterrent relay
allows the engine to crank only when CKT 625 (YEL/BLK) is grounded by the
theft deterrent module
.