FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Car repair manuals for everyone.
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Cadillac
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1999
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DeVille Concours V8-4.6L VIN 9
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Information Bus
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Description and Operation
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General Information
General Information
The miscroprocessor-controlled modules in the vehicle communicate with each other through the serial data lines. This vehicle uses 2 serial data lines:
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The E&C serial data line
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The class 2 serial data line