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International Automotive Technicians Network
Re: 05 Silverado Duramax Class 2 network problem
Posted to Technical Discussion Forum on 1/3/2020

Sure sounds like a module is locked up and holding the Class 2 voltage high. Splice packs will be your friend trying to locate this. Airbag module being wet/corroded would be a prime suspect given the location under the seat. Login to read more.