The other day while driving my truck randomly stalled and would not restart. After removing a fuel line it was apparent there was no fuel flow. So I replaced the pump. The truck now starts and drives but the check engine light flashes when the key is first turned to the on position and the speedometer does not work. The brake and abs lights are on as well. Current codes are:

U1120 : Lost Wheel Distance Message
U1110 : Lost Vehicle Speed Message
U0121 : Lost Communication with Anti-Lock Brake Module
P127E : Fuel Pump Control Circuit 2 Open
U0121 : Lost Communication with Anti-Lock Brake Module (Not sure why this shows up twice)

There is a freeze frame DTC for U1110, Lost vehicle speed message stored in the ecm

So far I have tried removing the battery and connecting the positive and negative battery terminals together for 2 hours. Also I have removed the TIPM, cleaned all connections and reinstalled. Neither changed anything. There is an add a fuse going to circuit 28 and two wires running back into the cab on the drivers side to under the steering column.

I have cleared the codes. Before starting the truck I immediately get U1110 and U1120. After starting they all reappear. The truck never had any of these codes prior to the pump failing. Any pointers on where to look next?

 

Have a look at what those systems have in common. (gonna need wiring diagrams....) Wouldn't surprise me if you didn't have a bad ground in there somewhere.

ABS, Brake, and CEL are all related to the loss of vehicle speed information. Solve that one, and those codes should go away.

What year is your truck? 2 or 4 wheel drive?

 

The truck is a 2007 1500 4x4 Crew Cab with the 5.7 Hemi.

 

I *think* the PCM gets vehicle speed info from the left front wheel speed sensor....