Fan Wiring.

Wiring best practices and loom building technique
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Beattie62285
Posts: 5
Joined: Fri Feb 05, 2016 12:21 pm
ECU Model: S40 Pro

Fan Wiring.

Post by Beattie62285 »

Can somebody provide a wiring diagram for the best way to wire fan with dta s40 and also a override switch so i can operate it manually?
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: Fan Wiring.

Post by Rob Stevens »

Use a relay exactly as shown in the S40 diagram. if you want to add an override I suggest you add a switch to ground to pin 18
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Fan Wiring.

Post by stevieturbo »

Doesnt get much easier than Rob says
Beattie62285
Posts: 5
Joined: Fri Feb 05, 2016 12:21 pm
ECU Model: S40 Pro

Re: Fan Wiring.

Post by Beattie62285 »

I don´t have the wiring diagram to follow but i get what you mean. So the Ecu basically switches to ground and has 12v supply to the relay coil all the time when ignition on. So just need to take a tee off of the Relay coil negative through a switch to ground.
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Fan Wiring.

Post by Alex DTA »

All wiring diagrams, manuals, etc. on the website. S40 here:
http://www.dtafast.co.uk/download_files ... iagram.pdf
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Fan Wiring.

Post by stevieturbo »

Beattie62285 wrote:I don´t have the wiring diagram to follow but i get what you mean. So the Ecu basically switches to ground and has 12v supply to the relay coil all the time when ignition on. So just need to take a tee off of the Relay coil negative through a switch to ground.
Yes, and as Alex linked, DTA pinouts are readily available online
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