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1997
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Skylark V6-3100 3.1L VIN M SFI
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Repair and Diagnosis
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Description and Operation
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VTD UART Communications
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General
General
The PASSLOCK TM System requires the Powertrain Control Module
(PCM)
and the Instrument Panel Cluster
(IPC)
to communicate various functions in order to operate. These functions are transmitted over the UART Serial Data Line, or CKT 800.