Code P0713 transmission temperature sensor

Hey Ken, looks like only.01v at temperature sensor connection from PCM, so went to connector at PCM and found plug was slightly corroded and nearly impossible to unplug and cover was slightly loose on connector but no corrosion inside just sprayed some lube. Made sure it's secured and no loose wires, problem solved! No check engine light on, cleared codes with obd scan tool but still car is in limp mode. Not sure how to clear or flash or reset it, or update any TCM software etc. Any thoughts on that? If I use diy diagnostic 20pin plug connect in at engine side under hood, will that allow me to clear flash trans? I still think original temperature sensor was not reading right at operating temperature so probably needed replacing.

Well, unfortunately nothing helped. I tried removing fuses, unhooking battery terminal, erasing codes and nothing came back but transmission still in limp mode with no codes of any kind. I wish I had 20pin k-link tool to connect to diagnostic port under hood to flash and reset and return TCM Into normal. Not sure if obd type scan tool with 20pin adapter might do the trick? Otherwise, take it to dealer for PCM/TCM reprogramming and software update, right?

BTW- I wonder why none of the TSB's specify reprogramming for temperature sensor replacement, not the specifically for this type sensor within wire harness transmission à 4cf2 nor the '11 type with one screw in type with trans a6cf1, is it only required if transmission goes into limp mode? Everything I read seems like if transmission temperature sensor related repairs calls for no reprogramming, just plug-in and play.

Sure be nice to have access to this type of scan tool but nothing like that around, best I could do was get obd scanner with and etc, maybe limited can ability but couldn't access anything other than codes that came up again, even though light was off, they seemed to be there, erased and popped up again before even running car, they were no codes after clearing and now they seem to be hard stored in ECU. Will need to verify if.01v or 5v is present at trans plug again. That's probably why limp mode is still in effect due to set codes.

Here is what I think: sensor likely failed and stored perpenant codes, maybe slightly loose wire as well, I may need to clear them, and then do trip drive pattern with specific procedure to remove any permanently stored codes and see if it clears everything and limp mode, seems like light goes off and returns due to permenmanet set codes.

Here's update: cleared all codes double checked PCM/TCM module sprayed lube at two terminals and checked at transmission plug got approximately 3.4v at +/- temperature sensor, had pending codes, no check engine light, it eventually popped up again. Noticed esc light on as well, it's prob been on for while, seems like bad wire connection at this point but still in limp mode, same codes, need to check if wire is corroded etc.

Well here is what I discovered, +/- at trans plug for temp sensor don't match diagram, instead of pink+/greenW/orange-, it's light grey /blue -. Also probed #6 temp sensor (+) shows power 4v approx. But when using #7 (-) but only.02v when probe #5 (-), same with #6, same goes for #5 shows - when I probe other pins like #1, #2 etc. So power is going to those wires. And pcm seems fine since I got replacement unit at junkyard for $5 to try and same codes pending p0713, with p0765 following afterwards. I feel as if something else im missing here that's simple or easy solution, some switch or relay or something that maybe went bad when original temp sensor "failed". Also, not sure but #2 trans wire for 2-4brake is listed as temp sensor, how it plays in this role? Also, what else feeds into this whole "temp sensor" function? I did have shift cable that broke and I had shifter in "park" but used the trans selector in "neutral" to start and move it manually by hand under the hood, maybe that shift selector switch solenoid failed that's on top of trans which attaches to shift cable? Seems like bit after that all this started, maybe related or not?

Seems like the #5 ground wire towards the trans connector, voltage seems to swing wildly if I massage and play with it approx 6-10" from connector plug going up, .20v to 3-4v depending on how it's bent and twisted, not sure if it's rotted in the sheathing or what but will unravel that wrapped tape to expose the 10wires but #5, maybe #6 or both shorting or grounding out. Seems like that's the prob area there. Thanks