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International Automotive Technicians Network
Re: Intermittent CAN failure
Posted to Technical Discussion Forum on 3/21/2023

I recently had a 2016 Duramax doing the exact same thing and intermittently the HS can was being grounded. After getting guidance from a colleague, I found the fault by doing resistance testing on the network with the key off and the network asleep. I then wig... Login to read more.