Today i did some research on my job in our Scania workshop manual and it says that pin 1,4 is supply and 2,3 is CAN but it didnīt say which was which. tomorrow i probably going to look in the circuit diagram and found out which is which, but even if i know that i must communicate through a CANbus interface. i found one on this page lawicel-shop. se/shop/ search for LAWICEL CANUSB Adapter. But then you going to need software to understand the data from the nox sensor, probably you need to make an own program for this...
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