2wheelgnnr

2012 FX4 4x4 5.0 I replaced the Lead frame on my 6R80 Transmission and got it all done......it wont start and I have like 11 DTC's all transmission related. Solnoid a,b,c,d, clutch, OSS all sorta of stuff. I figure maybe she's not getting power check my connector and the pigtail hooked up solid. Did I royally screw somethng up or is this a simple thing. I thought for sure a power issue and undid and redid the pigtail connector but no go. I know I plugged the TCM/Lead Frame in good with the supplied gasket??

About to have towed to a aamco to get looked at..or would I be better with the stealership?? Im at a loss.

Thanks for any feedback!!!!!

2wheelgnnr

Found this?? could this be my new lead frame is bad??? If I recall I got a error related to this too???

"The transmission range sensor is part of the molded leadframe inside the transmission and removal of the transmission valve body is required to access it. If the range sensor is faulty or if the range sensor signal doesn't get from the transmission to the PCM, the PCM won't ground the starter relay. It is also possible for the PCM to get the signal and fail to work properly or for a fault to exist in the wire between the PCM and starter relay."

RLXXI

I'd stab a guess at you don't have the linkage lined up correctly with the sensor, it's happened before. You have to line up both pieces before you bolt it together. PCM probably thinks the trans is in gear thus not allowing the starter to engage. Pull up pids if you have a scan tool or Forscan and see what gear it shows to be in with key on.

2wheelgnnr

I will have to check...I dont have forscan but have an odb too. I remember making sure it was all lined up... Hmmm ok thank you for the thought.

I remember this as a step when watching you tube videos. I had to line the plunger up with the lead frame side then when pt in had to line up with shifter so all were set into the plunger before bolting the unit up but thing happen......ok thank you greatly.

PIDS?? not a so called expert with the scan tool either....

Oh cant trust dash shifter in P but if not lined up...dash show park but Lead sensor shows say 1st...ok yeah tool



Will look what gear it says its in on the dash with key on. never really looked afterwards

RLXXI

PID = Parameter IDentification. Your vehicles sensors outputs that tell the PCM what's going on. Don't trust the dash for seeing if it's showing park,neutral etc. You need to see what the range sensor is telling the PCM.

2wheelgnnr

I have a zurich zr8 OBD II Reader. Im not sure what set of parameters to look at to see if in gear. Been all through it...did see perameters that talk about tranmission gearing? is there another way its presented or called in the reader????? I have read and will re read the book in it to help guide me to the proper parameters and what to look at to see gearing??

Again just know how to read codes and erease them....its all im good for...hehehe

2wheelgnnr

ok so I can find the technical parameter for trans but I do have picture proof I lined it up as I remember doing it. I took a pic before buttoning it up.

so my gear selector is lined up. at this point having it towed to dealer next week. Im sure in the long run something stupid or little but I cannot figure it out.


I was able to zoom on the connector and im lined up.

2wheelgnnr

Is this the part that sets into the guide rail???

UPDATE as you guys thought,, dealler got to their shop....put on computer and show in gear.... as you can see from above pic. the gear selector is indeed in place on the guide pin. after telling him this he thinks and has seen where the lead frame plastic slider is not in place properly. so he siad your gear selector may be right but not the lead frame portion or the plastic slider to indicate gear. he said it has like a clip and it clips in. NOW im looking at the old sitting on the counter here and the old nor the new has a CLIP to hold it in. I remember I just ensured the plastic TAB was in the recess. but it must have fallen out is the hope. SO they are gonna drop the pan and see. What I guess Im wondering or asking is ...is it really a clip that clips in>> I don't remember nor see from the old that the guide pin so to speak.....that fits into the recess n the metal guide pin on the valve body...so we will see...I will update again but boy know I put and line it all up together must have been done right or slipped out. SO we will see but this should be an easy fix......I hope that just its but that what hes thinking at this point and I would tend to agree as I didnt screw around with anything else so...what else could it be ya know. THey wont be able to get back to it till friday so we will see... I'll updated with more. so again I read to make sure thats all lined up..... but this will be another big reminder to make sure its all together and lined up...maybe I just didnt put it together properly.

RLXXI

That's what I figured was wrong. You're not the 1st person to report this very issue in this forum. Which is also why I said you need to see what the PCM is seeing. It's seeing the truck in gear so it disables the starter circuit.

2wheelgnnr

The dealer said that hes seen it before too. and it all makes sense...but im a little lost on is he said there should be or is a clip to keep that in place??

I dont remember any clip/retainer talking the old one out. Also I alighed that nub in the recess but maybe came out. We will see when they take it back apart tomorrow. He asked if I wanted to take home and do myself since I went this far. I said no I obvously screwed it up the first time so you go ahead with it.....he will advise if thats really what they find. I also asked to quote a oil pan gasket as its leaking and I dont wanna do it.
So we will see and I will know more tomorrow after they drop the new pan and peak at it.