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International Automotive Technicians Network
Re: Loss of communication on the can network
Posted to HD/Fleet Forum on 3/28/2021

Hi Gerald.,

Back off of what you think is broke and prove what is broke. You know what is working and what is not.

Locate the powers and grounds for each module and then load test them with a halogen light bulb to verify wiring and fuses are good.

I say ... Login to read more.