120 ohms at Deutsch connector

[Truckdriven]

Funny I just ran into this issue yesterday on a KW with a CM2350, in this case it appeared the resistor was located in the def tank module itself cause the blue plug you pictured had nothing in, just a seal cap. I pull the canbus pins out of the main bulkhead plug at the def tank and, installled a deutsch terminating resister and verified 60ohms at the engine data plug. I would expect a peterbilt would be the same way

The Deutsch resistor P/N is DTM06-2S-P006. Google search will give you multiple sources to buy.
This is a pin size 20 and the ones on the original harness are 16 so I had to install new terminals and the proper housing so this plugs in since I wasn't able to find any with a 16 pin size