Slow and Fast speed rad fans

[nikp]

Ok, i have got a new rad with new cooling fans - however, these are just single speed fans which i need to connect up to the harness. So i need to know which are the slow speed and which are the high speed cables for the fans - actually, i also need to know if the high speed fans switch on, will there still be a current to the slow speed?

So - i have four cables: Blue, Green, Yellow and Black. there going to be two negatives, and then two positives: one for the slow speed, and one for the high speed.

I plan to connect the new fans up to just the slow speed cicuit - will the fans remian on when the high speed circuit kicks in?

cheers for the help.

[D2BBA]

This link may go a little way to helping you identify wires / relays matey:

http://rx7.voodoobox.net/howto/fanswitch/fanswitch.html

Hope it helps
Chris