Hey yall
I was changin my oil and noticed this wire not going to anything. I looked around on the internet and my chiltons manual, but all I got is that it could be the plug for the ADD which would make sense since I have manual hubs I guess, or some option for 3vz-e engines I didn't get.

The engine wire harness crosses the engine from the passenger side to the drivers side, goes through a bracket behind the alternator, and splits into two. One going to what, I guess, is the oil pressure sensor device next to the oil filter, and the other going to what I have in my hand in the picture. Anybody know what it is?

 

It looks like my Brake Fluid Sensor Plug. Does your brake fluid cap have wires and a plug coming out if the middle of it? And is it plugged in?

Just a wild guess.

.

 

No, I just went and checked.

I forgot to mention, that the plug I have pictured has a wire cap on the end of it, so you can't plug anything in with the cap on. Also, it doesn't affect how my engine runs at all.

 

 

I'm in the middle of my 5vz swap, and when I pulled my 3.slow wiring harness out i found the same plug. Not sure what it is but mines caped too.

3.slow

 

Passenger ejector seat harness

 

for the a.d.d system on the front diff.

 

..Man I wish I knew that was an option when I first started looking to buy a Toyota

 

Glad I'm not the only one

lol Of course! how did I forget about that

Alright, I guess the mystery is solved. thanks