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Home >> Oldsmobile >> 1999 >> Cutlass V6-3.1L VIN J >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Description and Operation >> Body Control System Operation >> Data Line Communications
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Data Line Communications

The BCM communicates on the following two separate data lines:
^ Class 2
^ Serial peripheral interface (SPI)
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