2012 honda civic lx model vss

[Iggyg00]

Hello,

I have installed a avic z110bt and have no idea where the vss wire is.

 

Couple of questions first

what does the signal have to be voltage wise?

what does Nok mean on the signal screen if you go into the nav settings

 

The reason i ask is that i hooked it up to the speed sensor coming off of the transmission and it basically shows me going really really fast when i am driving then the signal screen shows NOK.

 

I unplugged it and now the nav works.

 

Any one know what type of vss signal it is looking for?do i need to hook it to the vss signal in the abs system?

 

Please help me with the wire color and where it is. I have the honda electrical manual but its hard to follow and doesnt give good descriptions.