trouble code po 748

[Jacobe]

My son in law's 2005 ram 3500 has a PO 748 trouble code. what can I do myself or is this a transmission repairman only job. He has only 120000 on the truck.

 

[cerberusiam]

P0748 code could be a couple things, bad connections on the trans control harness, pinched or chaffed wires on the harness, a bad trans control circuit relay, a bad fuse, or a bad gov pressure solenoid.



Do you have any other companion codes?

 

[Jacobe]

my reader said two codes, but I only could get one number PO 748