72 C20 Rewire - Question

[saborstyle]

I am in the middle of doing my 1st rewire using the painless kit. So far it is slow going (i have to stop around 1pm due to the heat), but seems to be going ok. I have fuse block installed and have ran most of the engine compartment wires. I have removed the instrument cluster and have removed the old wiring and an prepping to make connections there.

I have a few qusetions I am sure will pop up but here is one I have taken a picture of. It is up behind the brake pedal pretty high up. It had an orange/white wire connected to it. I disconnected it but cant make out what it is.


http://i.imgur.com/fJ6GiN6.jpg
http://i.imgur.com/RojpOcj.jpg

Thanks

Jared