infinity g37x with code p0720

[JerryRuiz-oi]

I had my 2010 fx35 do the same thing. My Fini would go into limp mode for a little while as I was coasting to a stop, or red light, and it would jump back into gear by itself. I changed my transmission oil 3 times after every 500 miles. And now it feels better. Change the transmission fluid regularly when needed.

[Gamecenter]

My 2017 QX50 just started this exact issue, unable to shift into 4th gear. I’m bringing it over to Infinity this week for diagnostics.

[teewild]

I had to replace 2 transmissions because of this same problem. Now got another to do same p0720 and won't past 3rd. I'm starting to think now that these have the same problem as the G35 with the front brake circuit in the TCM, where u go in and solder the circuit back.

[raphaeljunior]

Some of you probably already know but if you have an extended warranty and your car is modified (mines: long tube cold air intakes, catless exhaust, uprev tuned) your warranty may be voided. I'm having an issue with my car not shifting out of third gear. I filed a claim, there inspector came out and saw l was modified so Mercury Mechanical Protection voided my warranty.

[_xspec]

The scope is such a great tool. Saves a lot of time

[SAMTECH]

Thanks for your video sir, i learnt a lot of things for video I am also electrical engineer like keep up

[Maxson]

Thanks for showing that video I was looking for.

[derrickmccullough]

On the qx50 if the p0720 code comes up its not the speed sensor it's the valve body

[jhengis]

Thank you! @3:14 were you just physically 'spinning' the probe to see the high/low?

[FlossyZach]

So if I do this. I will need to re add transmission oil correct!? And that would be it? Like say for instance my sensor just came lose. Un bolt the valve body let the oil drain, replug it in and add oil and I might be good?

[bogartinify]

i gotta do this and the p0725, u1000 and p1815 had a leak in my harness and or car and got into the ecm so i have to replace all that with the tcm appreciate this video and i really hope this is for thge p0721 as well i have the rwd is the 0720 for you estimation vehicle speed signal

[funky]

Have you ever gotten a P0500 along with P0720 with bad TCMs. I have both codes but I’ve only seen people with P0720

[danielriddell]

Great knowledge video. Question: if a new valve body and TCM are installed that is blank (not programmed), can the vehicle still be driven in a limp mode (1-2-3 Gear) to the dealer for programming or will the vehicle not be drivable at all?

[joshl.]

My car goes into 4th and 5th but it doesn’t grab at all could this be a possibility? I been looking everywhere and I can’t find much info on the subject.

[daggerxx_]

what about the speed sensor p0725-00 where is it located

[carktoon]

I just paid over 4k to get my valve body replaced do u think im getting screwed?

[AlexisHernandez-srho]

Aye wassup boss hope you see this but i have the same code on a G37 2013 but no issues runs perfect and shifts perfect but has the check engine, what you think?

[javontalbert]

I have a po780 with my m37 2011 any helpful tips ??

[hrheather]

WHAT IF IT IS the transmission speed sensor? Then it shouldn't be as difficult as it seems for this car in ur video?

[derrickmccullough]

On the qx50 is the output speed sensor built in or can u change separately cause i took it to shop they said they changed it but its still doing the same thing do u think he ripped me off