I seem to remember some wiring diagrams in the DML archives when the viper fan rage was happening. Might want to do a search there.
----- Original Message ----
From: ffastje <ffastje@cox.net>
To: dakota-truck@dakota-truck.net
Sent: Saturday, May 23, 2009 12:36:57 PM
Subject: Re: DML: Electric fan power source
jon@dakota-truck.net wrote:
> Matt Beazer <teseract@moparhowto.com> wrote:
>
>
>> Hello,
>>
>
>
>> Anyone have any hints on what I could tap into on a '95 Dakota V8 for a key-on source that could handle the amperage draw that a 16" electric puller fan would impose upon it? I'd just run the fan controller input wire to the battery but I'm afraid it would run all the time in the summer with the key off, and I'd come out to a truck with a dead battery.
>>
>
>
> I would recommend drawing the power source for the fans directly
> from the battery, and use a relay in the supply line which is
> triggered by your switched source.
>
> The benefits to doing it that way is the fans have a nice clean
> power source with properly sized wires and you don't need to worry
> about finding a switched power source which also can handle the entire
> amperage of the fans. All your switched power needs to be able to
> handle is triggering the coil contacts on the relay, which for all
> practical purposes is no load at all.
>
> Doing it as above, you can basically pick any switched source you
> want. I think the cigarette lighter in your '95 would be switched,
> and the wires are fairly accessible. Or, if you'd prefer to keep all
> the wiring under the hood and don't have anything else to run to the
> cab like an override switch, you can probably probe around in the
> power distribution center under the hood and find a switched source.
> (Actually, the entire PDC might be switched, but I don't remember for
> sure.)
>
> I hope that helps! If you need any help such as a wiring diagram
> or something to show how a relay would be used, just let me know.
>
>
>
Jon us newbies to working on wiring would love to see
a wiring diagram
or something to show how a relay would be used.
I love the DML!!!!!
-- ffastje@cox.net
ffastje@gmail.com
1999 dakota cc 3.9L 4X4 57,332 miles
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