Hi Everybody!

I want to show P-Codes on my display.
This means, everytime the system (J1939 CAN-BUS) detects a P-Code, it should be shown by the Display
I have a few internal description but it is still a little bit confusing
Our Controller (lets call him HCU) collects up to 8 active or pending DTC faults and sends them with two messages (8 bytes, every P-Code on 2 bytes and a certain Value which describes the P-Code). This Value is a hex code (e.g. 0x3014)

So do you have any idea how to read and convert this signal?
Should I add a new J1939 device and map different DTCs?

Best regards
vom1rhi

Hello vom1rhi

You can use Free Form CAN messages to capture the P-code messages. Then based on the P-code received, you can display on the screen the correct message.

bseidl