If you've installed one of our J1939 250k to 500k network converters with a DDEC V engine control unit in a cab, for example, a 2019 Cascadia, you can keep the switches working without a separate module. To do this, you need to allow data from the Source Address to pass to the engine, but specifically filter the data you need to allow. You can contact Inpronic USA for this, and they will program your converter for you.
This way, not only will the truck's original instrument cluster work, but you'll also be able to operate the original switches such as cruise control, parking brake, service brake, and others.
