CM871 to CM570 Odometer Issue

[e30rik]

(04-02-2025 )marek4792 Wrote:  You probably need one of those datalink translator boxes wired into your truck so the J1708 and J1939 can talk to each other. It's what's used to get the cluster and dash switches to work properly.

Maybe it has one somewhere. All the switches, gauges, check engine lights, etc. work on the truck. Even the on board diagnostics tells me it's not receiving mileage data. Also confirmed it does have a J1939 (black) under the dash but don't have anything to plug into it yet.