Electrickery is not my subject but as far as I can make out most of the instrumentation input/outputs are passed through the Multi-Function Unit’s microcontroller, crazy…..
However the rev counter, engine management light, and I think the ignition light signals appear to come over the network from the ECU and into the MFU’s onboard TJA1050T CAN controller chip before going to the micro.
CAN controller/tranciever
![[Linked Image]](http://tm-img.com/images/2023/10/30/can-chip.jpeg)
One of my slow time projects is an attempt at a ‘tech downgrade’ to completely remove the MFU. At the moment the ignition light is being a right pain to work around as its appears integrated with the Visteon ECU’s smart charging system. Grrrrrrrrr!
