DeTomaso Mailing List: July 2001, Message #180

Thanks for the nice comments, Mike:

Actually, putting in the new relay was easy! Besides, my intent isn't to use the
old relays (I think they are about 30 years old by now) and there has been some
water intrusion just above that underdash relay board too.

I figure that new components (as far as the relays are concerned) are the way to
go. Luckily, all it took to rewire was to figure out what the schematic said and
translate it to the new relay, wire it using the existing wiring (all I had to
do was just "plug it in", no crimp, no nothing) and baddabing baddaboom, working
circuit!

The only fabrication process is to fabricate the relay board. NBD (no big deal).
It's just a 6.5" by 12" plate. I'm going to use a scrap piece of aluminum heavy
gauge scrap diamond plate and drill out the holes to mount the board and the
relays. Nothing else.

Stay tuned!

Cal #2428


> However, your aftermarket horn relay isn't necessary--the Pantera's wiring
> harness already incorporates a horn relay.  When you do the beep-beep thing
> with the horn switch, power passes through the stock relay (located on the
> relay panel, either under behind the glovebox on early cars like yours, or in
> the driver's side footwell on later cars) and then runs to the horns.  All
> you need to do is hook the stock horn wire (white, if memory serves?) to the
> "+" terminal on the compressor, and fabricate a ground wire from the "-"
> terminal to the body, and you're done.
>
> Wiring the entire car will be MUCH harder if you continue to duplicate
> existing components! :>)  Keep up the great work and thanks for keeping us
> posted! :>)
>
> Mike