flex-a-lite wiring help

[scirocco16v_1986 at yahoo.com (Jeffrey Lowe)]

--- Chris Venturini <cventuri@digipen.edu> wrote:
> So now its down to 3 things...i think. 
> 1.) The OEM relay. Where can i find this, and how 
> do I test it/fix it? 

The relay is parked right in front of your battery,
unless a PO moved it like I did. My fan relays are now
behind the driver side headlights, which technically
are still in front of the battery, but just not
visible anymore. And if your old fan was working then
your OEM relay is probably fine. 

To make things even more confusing, I did my
Flex-a-Lite install without the OEM relay in the
picture at all, and my diagram is way different then
the one you are going by. Nobody mentioned leaving the
OEM relay in place, and I followed the same diagram
you are using, I found out after my fan wouldn't run
that others had left their OEM relay in the picture. I
guess somebody needs to add that part of the puzzle
onto the diagram. Either way I'm happy with the way
mine are wired now. I'll probably be making a diagram
for others to follow when leaving the OEM relay out of
the picture. I didn't understand the point of having
three relays to run the fan anyway, still don't. As
far as it being two speeds now, I still don't see how
that's possible with my wiring or the diagram you
have, there's nothing that would make it two speeds,
there are no voltage differences one way or the other,
and I've only seen mine run one speed, fast &
effective. The fan switch has two outputs for the
different temps, but they're just trigger voltages.
I'll need to study how the old fan was hooked up to
get a better understanding of what made it a two speed
set-up.

>2.) The original brown fan wire.
> Its just hanging there. Is that right? 

What do you mean by the original brown fan wire?
Coming from the relay? I may not be able to help you
with that, since I removed the OEM relay and had to
come up with a different wiring scheme then some of
the other guys used.  As far as brown wires, there are
several brown wires leading up to the OEM relay, and I
had to figure out what was always on, and what was
switched. 

3.)I guess I could have a bad ground??

Once again, if your old fan was working and you're
using the same ground, I can't see having a grounding
issue.

The best thing I can recommend is to make yourself a
jumper wire to trigger the low speed relay manually at
input lead 86 with +12vdc to see if the fan kicks
on(do this test with engine off). If it kicks on then
you know your low speed relay, ground, and +12vdc on
lead 30 is OK. If that checks out then measure the
voltage coming from the fan switch(red/blk low temp
wire) to lead 86 to see if there is a trigger voltage
when your engine reaches the low speed temp(engine
running of course).

Good luck,


=====
Jeff Lowe
Garland, Texas
'59 Euro Spec Beetle (Waiting it's turn for resto)
'64 Type-34 Karmann Ghia (Got parts?)
'86 Scirocco 16V 
'98 Ford Explorer XLT 4X4

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