Long story short, I pulled my oil pan as part of the timing chain replacement, all back together now. I'm getting no power on my starter solenoid signal wire to crank the engine. I can get it cranked and running by jumping the solenoid, but the OD light on the shifter blinks. Bought a scanner and it came back with three codes

P0708 - DTR sensor high input
P0755 - Unknown
P0743 - Torque converter clutch, electrical

Truck is a 2001 F-150 5.4l with the 4E70W transmission
Power at the fuse is good and swapped the relay with no change.
Any help pointing me in the right direction would be greatly appreciated.
Thanks in advance,
Mike

 

Something happened to the harness going back to the transmission.
The start lead goes to the trans selector switch for Park and Neutral then back top the start relay.
It's open.
The 743 and 755 are shift control leads. They are open.
Be sure the connector is seated and not damaged.
Get under and look.
Good luck.

 

Well got it going and sounding great with constant oil pressure and no codes what so ever. Turns out that the problem was an impatient human error (me). My to do list had the line "reconnect all electrical connections". That should have been broken down into specifics and not just general. One of the two large connectors on the firewall with the bolts to hold them together was loose the whole time. Discovered it this morning while it was chasing down where the continuity break was in the starter circuit. This forum has helped me a lot on my truck. And honestly, I do feel rather embarrassed about it all.
Thanks.

Remember, always make your lists as detailed as YOU need them to be. Double check your double check.