02 7.3 u1262 code
Diesel Fan
Joined: Apr 2013
Posts: 49
Likes: 2
From: washington/kentucky
U1262 is a communication bus failure which means the communications system between PCM, IDM, GEM fail to communicate with each other. Sounds like a connection may be loose in the harness. Maybe wiggle the harness and see if you can tell where its loose and snap it back it OR disconnect and clean the ends.
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