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View Full Version : Dual radiator Fan wiring to AEM 1101 ems??


8052JZ
08-18-2010, 03:37 PM
anybody know how to wire up duel electric fans to the AEM ems or is that not possible? also whats needed? relays temp sensor...............???? a Diagram would also help if anyone got one, thanks...

I guess I could just get a temp relay kit from summit-racing but I rather have the ems turn on/off the fans?

thanks in advance

8052JZ
09-29-2010, 12:25 PM
Found this on the AEMforum and its pretty much the same concept for all the AEM EMS i believe. Find the Pin outs sheets for your AEM and use the High side or Low side inputs.

What is required.
1 or 2 (for dual applications) Relay - Jegs #10557
1 or 2 Electric Fan
1 or 2 High Side Output (not sure if you can just use one for Dual or required to have 2)

Steps:
1. Pick your High Side Output. For me it is High Side #2(HS2)
2. Mount the Relay close to the Fan, but not too close.
3. Run the +12v Supply from the Battery to the Relay
4. Run the Ground from the Battery to the Relay
5. Run the Ground from the Battery to the Fan
6. Run the Switched +12v from the Relay to the Fan
7. Run the wire from the EMS to the Relay
8. Configure the Outputs.
8a. From AEMPro -> Options -> Configure Outputs
8b. Find your output from the drop down list.
9. Make sure that under Basic Activation the Active box is checked.
10. Make every value under Active when = At Least.
Coolant = 190(what ever value you want your fans to come on at)
Load = -14.69 PSIg
RPM = 0 rpm
TPS = 0.00 %
Road Spd = 0 MPH

Note: Units will be in what ever you have them configured to. So if you are running KPA the load units will show in KPA, I am running PSI.


*** You can also use a Function ***
If you Check the Rad Fan Function, you can have your radiator fan activate and deactivate at different coolent temps.

http://forum.aempower.com/forum/index.php?action=dlattach;topic=25999.0;attach=615 0

The link to where i got the info and the diagram pic, thanks to TheBoz2
http://forum.aempower.com/forum/index.php/topic,25999.0.html