Cummins Diesel Forum banner
Cancel
Create thread New Garage Forums

2021 6.7 says service def system please help?

Jump to Latest
609 views 2 replies 3 participants last post by  sstoner911  
C
#1 ·
Anyone help me out and tell me what these
Codes mean and how to fix please thanks new to me truck and these are the codes I’m getting for def system
 

Attachments

B
#2 ·
Gonna need more info about your truck if you want help from anyone. Is it modified? Stock? Miles? Bought from a dealer? Private party?
 
Save
Reply Quote Like Like
#3 ·
If this was purchased used from a dealer its probably under warranty.

If not, and you need a DPF, check around for companies who either clean or re-core DPF canisters.
 
Cummins Diesel Forum
posts
9M
members
405K
Since
2005
A forum community dedicated to all things Cummins Diesel! Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
03-07 Powertrain 03-07 Performance Parts Discussion 2013-2018 General Discussion 98.5-02 Powertrain 98.5-02 Performance Parts Discussion