Elect. relay question

Put in an elect. fan ( bone yard item) All I've seen saz to run a relay. I have a Bosch 12v-30a. will be run'n a manual on/off switch.
Any ideas on color code on relay?
large red,
not as large brown
small lite brown
small black
Thanks
Pontiac Slim

 

give us the numbers on your relay like a 87 or 86 ,85 that is the way to wire them one circuit goes to the switch and the other letes the power go through to the item so the load is not carried by the small circuit

 

http://www.6066gmctrucks.org/BoschRelay.htm

 

Hmm.
the relay part # is 0 332 014 151
on the side is 85/86 then 87 with electrical mom-bow- jumbo diagram
that any help?
Pontiac Slim

 

yeah go to the link i put in the other reply , it is easy to follow

 

Hey..
Thanks... I went to the site.. Explained things so I even understood them!
Thanks again...
Pontiac Slim