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Old July 17th 05, 12:32 PM
PC Medic
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"Robbie and Laura Reynolds" > wrote in message
...
>
>
> "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?


My 95 3.0 they relays are all labeled on the under-side of the power control
centers cover.
With the exception of two if I remember correctly, they (relays) are also
all the same so swapping is what I did to track down that it was a bad Rad
Fan relay when mine failed.



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