new truck, E4OD not working

[02x72]

Just bought a new truck, and am having issues with the granny not working. First of all it has a gear vendors, If that helps. Reverse is fine, but when put in D it goes into third, and manual selection of 1 and 2 only results in second gear. OD light is staying on and the tach is not working, but there is a working sensor in the IP housing. Haven't had a chance to pull codes yet, but plan to. Any help on where to start?

 

[lindstromjd]

Non working tach = non working e4od. Sounds to me like it's in limp mode.

 

[02x72]

It was the TECA relay under the hood. Replaced it and were good to go. Took me 2 hours with a multimeter and a wiring diagram what 3 different Ford mechanics couldn't do in 3 months. Another reason to never go to the dealer for anything...