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[rondeo]

I use an OBDLink MX bluetooth adapter, it has power saving and MS CAN. The computer system works at different speeds and priorities, there is an HS CAN bus for high speed important stuff like engine management and an MS CAN BUS for things like trailers etc. My car has a permanent problem with the trailer module for example, which I ignore since my trailer works fine except for flashing lights.

If you want to drive and forget, there's the Ford IDS system (integrated diagnostics) and the VCM (vehicle communication module) available at your local Ford service, hacked by some for personal use. (Not me, seriously).

I'm getting tired of this car stuff, I need a break, it's becoming an obsession.