2007 Toyota Tundra Shift Solenoid “C” fault code 0761

Appreciate this forum and have been a fan for years. Just joined in seek tribal knowledge from all those Toyota loyalists. I own three Toyota’s and two Lexus’s. Won’t by another brand of vehicle. Anyway here is my issue:
Recently started having issue with fault codes coming from transmission operation. Specifically, when first starting out from a cold truck, transmission will delay shifting from 3rd to 4th, 5th, and 6th gears. I will get a CE 0761 shift solenoid “c” performance or stuck. After resetting computer, truck runs great and no issues for several days. Does anyone know the part number for the transmission shiftsolenoid “c”. I have changed shift solenoid “d”two months ago. No issues until recently. Fluid is clean and no debris in pan.

Thanks in advance for any shared knowledgeon this subject.

 

I would try an online parts place like mcgeorge toyota. They have some decent details and diagrams with their parts.

Toyota Online Parts | Genuine Toyota Parts | Toyota Parts Online (mcgeorgetoyota.com)

 

May want to investigate this link.

https://www.tundratalk.net/threads/p0722-p0761-p2714-transmission-codes.766224/

I know it is from a different forum but it may be useful.

I was having the same issue and changed the output speed sensor. Have not seen problem since but it has only been a week. Time will tell.
I did notice an improvement in acceleration and shift point seemed different. May just be me but it seemed different. Take it for what it is worth.

 

Thanks

I will give it a shot and post my results

 

Here is a update on the on the output speed sensor change out.

I went to O’Reilly’s and purchased their brand of OSS and discovered that the electrical connection was at a 180 degree angle to the bolt hole pattern. I took it back to see if they had a OSS with the required 90 degree angle for ease of connection of the wire. The existing wire would not work with the 180 degree. I went to several other parts stores and found that the price range difference was between $75 - $180 (NAPA). This made me look on Amazon. Found it on Amazon for $19 bucks; but, the description said if fit 2008-2015 Toyota Tundra, Lexus. It appeared identical to one I removed. I received it the next day and swapped out. Truck runs great and no issues of CEL, VSC, or trac lights. Truck shifts 10x better.

I want to thank you all for leading in the right direction. My worst nightmare was I was going to get ripped off for a trans rebuild for a $19 parts. It happens everyday.

 

Leeban56,

Any chance you remember which codes?
I’m getting the 761 and a p2714 for the main control solenoid d. Acting the same as you describe. Were you getting an oss code?

 

So are either one of y'all having any issues since the output speed sensor change? My '08 Sequoia is throwing P0761 & P2714, even after I swapped out my existing valve body for a refurbished one from eBay.

 

Hoopin4you,
After looking into this thread more. It looks like they had a p0722 code as well that would indicate speed sensor. I am only getting the same 2 codes as you even after replacing c and d solenoids. I have found if I let my truck warm up for about 10 minutes it shifts fine and never throws a code. If I jump in on a cold day it will not shift into 3rd and occasionally throw the 2714 and 761.

 

Well, @Leeban56 (the OP) stated he specifically was getting the P0761, so that's why I asked him if he's been good since the change. Yes, if I warm up the Sequoia before leaving, it definitely shifts better but it will still sometimes throw the codes and go into limp mode. If I come to a stop, shift into P and then shift back to D and take off, it usually will start shifting normal through all gears up & down for the rest of the day. It was doing this same thing with my original valve body.

I got in touch with the eBay seller this morning, and he asked if I had changed out the harness (which I haven't done). That may be my next course of action. Of course, the OSS is cheap, too, so I may just put one in to cross that off the list.

 

Did you end up changing out the harness/OSS? If so, any change? My 08' Sequoia started doing this in December, at only 140k miles. Seems like it has to be electrical/sensor and not physical wear because there are sequoias with double the miles on their original transmissions...

 

I did buy a USED harness on eBay, but it didn't change anything, so I sent it back. I did not change the OSS, but I'm pretty sure that it's the solenoids. I wound up buying a '14 Platinum, but I haven't given up on the '08 yet. I'm very tempted to take the valve body from the '14, put it in the '08 and test it out, since it's obviously working well. I do need to do a tranny flush on the '14, so that would be a perfect time to swap it out.

 

I've seen a few people on various message boards that had changed out the valve body and solenoids and still had the issue. Like this one - https://www.tundras.com/threads/dre...p2714-p0761-with-a-twist.119360/#post-3080866 I just bought a replacement OSS and am going to see if that does anything.

 

The only reason I tried another valve body was because a member in our 2nd Gen Sequoia Facebook group was having the same problem and solved it with another valve body. The one I bought was from the same eBay seller that he used, so I thought I'd try it. Thankfully, I was able to return it for a full refund.

If the OSS solves it, that would be unreal. I read where a guy thought he solved it with a change of that part, only for the codes to come back a short time later.

 

I'll keep you posted, part doesnt come till early next week, probably wont get to it till that following weekend.

 

Changed OSS 2/26 and as of 3/6 haven't had any issues. The old sensor had some metal shavings on the metal tip, so that may have been the cause? I'm still skeptical because its been really warm here in Florida lately, and these codes were popping up more often when it was colder outside, like 35-55 degrees.

 

Yeah, I probably need to change it anyway...the part is cheap enough to just do it. Even with the warm temps, my reverse is still taking awhile to engage on the first startup of the day.

I found another valve body company that sells their valve bodies on eBay. I sent him a message on what mine has been doing, and he thinks it's the C2 clutch pack that is slipping. The C2 clutch is repsonsible for shifts from 3rd to 4th and is also partially used for reverse, I believe.

Here's our communication on the subject.

 

My problem came back as of yesterday... However, it hasnt been throwing codes yet, just won't shift into fourth gear the first attempt after startup. I've even tried electronically downshifting and then shifting back into 3rd then 4th and it won't work. I have to come to a complete stop after it fails, and then the car will shift perfectly fine the rest of the day. I guess with yours having 328k miles it at least seems reasonable it could be physically failing internally. My 2008 limited is just a baby with 140k miles. The fact that i am seeing more and more posts about this with the 2008 model makes me think its just an eletrical or sensor issue and theyre all starting to fail around the same time? Who knows. I guess if it gets worse, I'll just trade it in.

 

Do you guys make photos of the old sensor? They are magnetic and they might catch metal shavings, which is an indication of internal wear. Saw that happening on other Aisin transmissions.

 

My OSS had shavings on it. I didn't take a picture. Not sure how much is normal wear and tear vs damage.

 

First picture is a "typical" wear. Though typical, it is not a normal wear, as it indicates a spun sleeve. But you get it in nearly 100% of transmissions of that type.

Two other pictures are catastrophic failures. Cars were still driveable, just shifts were not perfect, weird noises, etc.

In a healthy transmission you shouldn't see any metallic dust accumulating on speed sensors.

All three transmissions were rebuilt to a like-new condition Aisin knows how to build long lasting transmissions.

 

yeah, it was probably somewhere between the first and the second.