Notices

Wiring aftermarket fans

Thread Tools
 
Search this Thread
 
Old Jan 26, 2014 | 07:56 PM
  #1  
McGuigan89's Avatar
McGuigan89
Thread Starter
Scooby Regular
 
Joined: Sep 2012
Posts: 52
Likes: 0
From: Co,Derry-Ireland
Default Wiring aftermarket fans

Ive fitted a set of aftermarket fans on my car but theres 2 wires on the but 3 on the plug for the car so wasnt sure what todo, Had a search on here and couldnt find anything found this after doing a search on google:

Fan #1 (Main Fan)
Black = Ground
WL = 12v Power
YR = 12v when the 2ndary fan is on.

Fan #2 (Secondary/AC Fan)
B = Ground
WG = 12v power
YG = (nothing)

That said, on fan #1, you "should" be find wiring YR and WL together, and B to ground.
Then, on Fan #2, only wire in WG and B

Given the way the relays are laid out, when Fan #2 relay shuts, it'll power both.
But, when Fan #1 relay shuts, it'll only power #1, because the #2 relay "could" still be open.
If both relays are closed, they'll both run.

This sound right to anyone?
Reply
Old Jan 27, 2014 | 12:30 PM
  #2  
alcazar's Avatar
alcazar
Scooby Regular
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Jun 2002
Posts: 40,788
Likes: 30
From: Rl'yeh
Default

Sounds right to me.
Reply
Old Jan 27, 2014 | 09:21 PM
  #3  
McGuigan89's Avatar
McGuigan89
Thread Starter
Scooby Regular
 
Joined: Sep 2012
Posts: 52
Likes: 0
From: Co,Derry-Ireland
Default

good man alcazar
Reply
Old Jan 31, 2014 | 01:40 PM
  #4  
FMJ's Avatar
FMJ
Scooby Regular
iTrader: (2)
 
Joined: Sep 2012
Posts: 980
Likes: 4
From: Salisbury
Default

Out of interest then (as I plan to do this sometime in the future too) I have removed aircon and just want both fans to come on with engine temp/water temp. Which wires would I put to positive on the new fans? And where are the fan relays located?
Reply
Old Jan 31, 2014 | 01:55 PM
  #5  
McGuigan89's Avatar
McGuigan89
Thread Starter
Scooby Regular
 
Joined: Sep 2012
Posts: 52
Likes: 0
From: Co,Derry-Ireland
Default

FMJ i have no knowledge in this kinda stuff at all i havent even got the chance to wire my own up yet to tell you what way the above works, hopefully someone else can point u in the right direction
Reply
Old Jan 31, 2014 | 02:56 PM
  #6  
alcazar's Avatar
alcazar
Scooby Regular
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Jun 2002
Posts: 40,788
Likes: 30
From: Rl'yeh
Default

I would reckon the fan relays are in the main fuse box? Under the bonnet.

Have a look at the old wiring, ought to be simple enough. If in doubt, use the old wiring to trigger the relays, with a direct feed from battery via an inline fuse, or fused relay.
Reply
Old Feb 1, 2014 | 07:58 PM
  #7  
FMJ's Avatar
FMJ
Scooby Regular
iTrader: (2)
 
Joined: Sep 2012
Posts: 980
Likes: 4
From: Salisbury
Default

Originally Posted by alcazar
I would reckon the fan relays are in the main fuse box? Under the bonnet.

Have a look at the old wiring, ought to be simple enough. If in doubt, use the old wiring to trigger the relays, with a direct feed from battery via an inline fuse, or fused relay.
I'm sure I will work it out. Just have the get the gearbox back in then I might give it a go.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JimBowen
ICE
5
Jul 2, 2023 01:54 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
Dec 28, 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
Nov 18, 2015 07:03 AM
T.K
General Technical
10
Oct 2, 2015 11:35 AM
mistermexican
General Technical
2
Oct 1, 2015 04:30 PM




All times are GMT +1. The time now is 10:38 AM.