× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Exhaust fluid quality poor message
Posted to HD/Fleet Forum on 1/10/2026

i just repair my 2019 model for a P1050 code Replaced Def Pump assembly cleared code service info said run Reductant tamper service procedure.

I found it in my snap on scan tool started the procedure it set a p248a tank heater code kicked me out of the proce... Login to read more.