I had a P0740 along with plenty of other horrible transmission codes on my odyssey with 132k miles on it. I replaced the trans, torque converter and added an external transmission cooler.

Now I'm getting another p0740. It's driving perfectly fine except for the code. The code means the TCC isn't working so I've spent the last hour trying to find out which one is the TCC solenoid and I've had no luck. I even went to Honda and they had no idea. So if someone could point out which solenoid is the TCC or link a replacement I'd be VERY appreciative. A few sensors broke during shipping which I'm guessing is the cause of this.

Here are a few pictures of the new transmission.







I also looked up that it supposedly has a black and a yellow wiring going to it according to the wiring diagram.

Please and thanks.

 

I found it on another site.

The TCC is the black solenoid next to the brown one at the top of this picture.