Board Logo
Go To Bottom

Printable Version  
[ Total Views: 1132 | Total Replies: 10 | Thread Id: 98020 ]
Author: Subject:  quick question about ECU wiring fan switch
Memberpete wood
A.k.a.: figure itout
23 Windows of Awesome
********


Avatar


Posts: 6828
Threads: 389
Registered: January 15th, 2004
Member Is Offline

Location: Nth Nth StMarys, Sydney
Theme: UltimaBB Pro White
Mood: upgrades = jackstands

posted on July 25th, 2012 at 07:16 PM
quick question about ECU wiring fan switch


Finally wiring the fans to the ECU.

Diagram says

battery volts = off
0 volts = on

I assume this means I wire a 12v feed to the relay and let the ECU ground it to earth?




"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/ 
Member1303Steve
A.k.a.: Steve Carter
Scirocco Rare
*********


Avatar


Posts: 8636
Threads: 559
Registered: August 27th, 2002
Member Is Offline

Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading

posted on July 25th, 2012 at 07:52 PM



That's correct, the ECU grounds the relay
Memberpete wood
A.k.a.: figure itout
23 Windows of Awesome
********


Avatar


Posts: 6828
Threads: 389
Registered: January 15th, 2004
Member Is Offline

Location: Nth Nth StMarys, Sydney
Theme: UltimaBB Pro White
Mood: upgrades = jackstands

posted on July 25th, 2012 at 07:54 PM



ta, thanx.



"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/ 
Membermackaymanx
A.k.a.: Brent
Custom Title Time!
*****


Avatar


Posts: 1611
Threads: 97
Registered: January 12th, 2006
Member Is Offline

Location: Mackay.QLD
Theme: UltimaBB Pro Blue
Mood: Brad'ed Off :td:

posted on July 25th, 2012 at 07:57 PM



Yes that's how I wired my van.



Quote of the week
"Do I wish to send them to you again, nope, no interest can't be bothered really, to much hassle for little or no return."

http://www.vw-mplate.com/mplate2-18600.png
Member1303Steve
A.k.a.: Steve Carter
Scirocco Rare
*********


Avatar


Posts: 8636
Threads: 559
Registered: August 27th, 2002
Member Is Offline

Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading

posted on July 25th, 2012 at 08:06 PM



Hi Pete

So are keeping it?

Wiring the fan to the ECU will bring it on when the motor gets hot, I have switch in the radiator as well wired to battery, the few times that I've run my bug the ECU switches the fan on 1st every time

Steve
Memberpete wood
A.k.a.: figure itout
23 Windows of Awesome
********


Avatar


Posts: 6828
Threads: 389
Registered: January 15th, 2004
Member Is Offline

Location: Nth Nth StMarys, Sydney
Theme: UltimaBB Pro White
Mood: upgrades = jackstands

posted on July 26th, 2012 at 07:06 PM



Dunno if I'm keeping it. Had a few enquiries but nothing solid. It's still for sale but I'm sick of *&#%$& davies craig mechanical switch that screws up every few years.

Another question.

I have twin fans and twin fan control hookups on the ecu. Should I run both off the one hookup or let the ECU control both fans independently?




"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/ 
Memberpete wood
A.k.a.: figure itout
23 Windows of Awesome
********


Avatar


Posts: 6828
Threads: 389
Registered: January 15th, 2004
Member Is Offline

Location: Nth Nth StMarys, Sydney
Theme: UltimaBB Pro White
Mood: upgrades = jackstands

posted on July 27th, 2012 at 08:45 AM



k, got it wired last night and.... now only fan comes on. :/



"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/ 
Member1303Steve
A.k.a.: Steve Carter
Scirocco Rare
*********


Avatar


Posts: 8636
Threads: 559
Registered: August 27th, 2002
Member Is Offline

Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading

posted on July 27th, 2012 at 09:20 AM



Hi Pete

I'm not sure if understand your issue, is only one fan coming on? The two fans on the Subaru come on at different temps, one at lower temps the other as the motor gets hotter if the 1st one doesn't cool the it down enough.

Steve
MemberBlueV2
A.k.a.: Mark
Seriously Crusin Dubber
**


Avatar


Posts: 193
Threads: 15
Registered: April 22nd, 2008
Member Is Offline

Location: Blacktown - Sydney
Theme: UltimaBB Pro Blue

posted on July 27th, 2012 at 02:10 PM



Pete, you might find that the second fan is only for when the air conditioner is turned on. That is how my ECU works anyway and I am fairly sure your motor is very similar to mine.



Sharpbuilt V2, EJ25, Subaru 5 Speed, Falcon rear discs, Heater & A/C, Rack Steering
Memberpete wood
A.k.a.: figure itout
23 Windows of Awesome
********


Avatar


Posts: 6828
Threads: 389
Registered: January 15th, 2004
Member Is Offline

Location: Nth Nth StMarys, Sydney
Theme: UltimaBB Pro White
Mood: upgrades = jackstands

posted on July 27th, 2012 at 07:41 PM



Yeah, I think that's the go. I'll trace the wiring and run both fans off the one feed.



"stoopid is stronger than axles"
http://drivingnotpolishing.blogspot.com.au/ 
Memberlou0060
Wolfsburg Wizard
***


Avatar


Posts: 568
Threads: 30
Registered: December 12th, 2010
Member Is Offline

Location: Brisbane
Theme: UltimaBB Pro Blue ( Default )

posted on August 5th, 2012 at 06:14 PM



hi Pete, I did the same on mine. both fans come on together now. The smaller fan I think is meant to come on when the air-con is switched on from what I have read, which is always on in a buggy...



1971 karmann ghia Cabrio - Cruising :yes:
1963 beetle Sunroof - gathering dust :fakesniff:
1968 race beetle - twin turbo Subaru - stress relief :smilegrin:
1960 beetle - old school low & slow :smirk:


  Go To Top


Powered by GaiaBB, © 2011 The GaiaBB Group
(C) 2001-2024 Aussieveedubbers

[ Queries: 40 ] [ PHP: 11.2% - SQL: 88.8% ]