Heater/fresh air fan wiring question

[mk1mark at gmail.com (Mark F.)]

On 10/29/06, C Boyko <roccit_53@scirocco.cs.uoguelph.ca> wrote:
> Do your wipers work with the key off? Maybe the load reduction relay is
> going for a crap. (Is/was this an AC car? There's a relay in that mess too,
> no clue when it does what it does).


I believe I bypassed the load reduction relay by wiring the switch
directly to the battery.  The Bentley diagram shows the power going
directly from the switch to the fan/resistors, so I'm stumped as to
why I'm hearing a relay-type clicking when I rotate the fan switch (oh
ya, it "clicks" when turned to off as well, contrary to what I
mentioned in my first post).


> My "working fan motor but no fan"
> problems were resolved by swapping the switch (tested out as okay but
> wasn't), or the second time it was melted crud on the fuse connectors due
> to a windshield leak which ended up right on that fuse (MkI). But I started
> into it because the fan would stay on all the time due to a bad load
> reduction relay, I'd forget the fan was on low till I returned to a car
> with a dead battery. I'd assumed it was a PO wiring bypass but it was all
> stock. GL, you need a fan this time of year!


Switch is fine - I tried a known good one with no difference.  I just
have no idea what that relay clicking is all about...

Thanks,

Mark.
75
82
82 Caddy

> CathyOn 2:49 am 10/29/06 "Mark F." <mk1mark@gmail.com> wrote:
> > It's a running joke with friends/family that EVERY Scirocco I own will
> > have heater problems (and almost always within 2 weeks of owning it).
> > The 82 is no exception.  The fan conked out shortly after I put it on
> > the road, but now that it's getting cold out I need to fix it.  The
> > fan itself works great, with no signs of it going (which is nice for a
> > change!), but something in the wiring is fucked up.  When it first
> > started acting up a gentle kick to the fuse box would bring it back to
> > life, but no amount of abuse to that whole area will help it now.  So,
> > tonight I attempted to do what I've done 9 times out of 10 when I get
> > to this point - I simply bypass the whole fuse box and run a separate
> > fused wire right to the switch.
> >
> > It didn't work this time.  I hear what sounds like a single relay
> > click each time I turn the switch to another speed (but no click when
> > I turn it off), which confuses me since there doesn't appear to be any
> > relays in the heater circuit (other than the load reduction relay,
> > which I've bypassed by wiring the switch directly to the battery -
> > right?).  Oh ya, car is an A/C model. Anyone know what the
> > clicking/relay sound I'm hearing is?  Suggestions?
> >
> > Thanks,
> >
> > Mark.
> > 75
> > 82
> > 82 Caddy
> >
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