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Home >> Cadillac >> 1990 >> Allante F7/ME9 >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Computer Module >> Description & Operation >> Lighting System >> Notes

Lighting System: Notes

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The distributed lighting system consists of nine output switching modules (OSM's), the BCM and the lighting control panel or Left Switch Pod (LSP). Each of these components communicate via a serial data circuit that is controlled by the BCM. As a backup system, the BCM also controls two redundant relays that will allow for essential lighting in the event of a major system fault.