"Daniel J. Stern" wrote:
>
> On Sat, 16 Jul 2005, Robbie and Laura Reynolds wrote:
>
> > I have a 93 Voyager with 3.3 engine. Within the past couple of weeks
> > the radiator fan has quit turning on, and the air conditioner quit
> > working. They both quit at the same time as far as I know. The AC is
> > still fully charged, and all of the dashboard controls work including
> > the blower, etc. It's just that the clutch never engages.
> >
> > I got the trouble codes by turning the key, and it gave me code 33,
> > which according to the manual is a short or open condition in the AC
> > compressor clutch relay.
> >
> > Does this relay control both the AC clutch and the radiator fan? There
> > is only one fan, rather than one for the radiator and one for the AC.
> > So it makes sense in a way that a single fault could disable both the
> > radiator fan and the AC.
>
> Yep. There is a relay for the radiator fan and a relay for the A/C
> compressor clutch. They are interlinked such that the compressor relay
> won't close unless the rad fan relay is closed. A single fusible link
> feeds them both. You've got some diagnosis to do -- and you'll need a
> factory service manual (not Haynes, not Chilton) to do it.


I also have a 93 Caravan with 3.0. It's a different engine, but the
chassis wiring is the same as far as I know, and everything on it
works. I can do the classic "switch parts until it works" routine with
the other van. If I knew which relays and switches to look at, I could
determine whether the fault is in the parts or in the fusible links.
The problem is that it's hard to tell which ones are which. Does
anybody here know off the top of their head which relays to look at?