can error 121

Reply Subscribe

Thread Tools

Search this Thread

Jul 13, 2013 | 07:39 PM

interex20002000

Thread Starter

Newbie

Joined: Jun 2013

Posts: 2

Likes: 0

From: paragould, AR

can error 121

I have a 2012 2500 programmed with smarty JR67. It has been running great till I hooked up a edge evolution to use for gauges. Now all I get is a can error 121 and truck will not start. How can I fix? thanks.

Jul 15, 2013 | 12:52 AM

97cummins

Super Moderator

Joined: Jun 2008

Posts: 5,812

Likes: 333

From: puyallup,washington

your smarty jr. may be fighting with your edge. Remove both and see if the truck starts.

Jul 16, 2013 | 01:23 PM