Hello, I have 2019 2500 that has been on a diet using MM3/DRD tuning, stock auto trans, and no other mods.
Last week, while driving, the ESC light came on with the message to service electronic stability control.
A day or two later, I got service Airbag system and Service trailer brake system messages on the dash.
I have checked the codes, and the only one showing is UO151 ( lost comm with restraint control). I've cleared the code, and as soon as the truck starts, it returns, and all three messages.
I've checked the batteries, and they are showing good. I just put the charger on to ensure they are at full power, etc.
I also tried returning to stock tune and reloading, etc.
Any ideas where to start?
Thank you.
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