I have related question. My ('91 V6) CDS fan is totally dead (fan blade falling off, motor utterly stuck).
I have two questions:
- when is the CDS fan supposed to blow? Only when the A/C is on? When the Main Fan blows as well? In other words: is the CDS fan dedicated to cooling the condenser or is it used to supplement the radiator cooling as well? (According to the diagram both should spin when the engine is hot OR the A/C is on. I don't see a condition where only one would work, although the circuit seems to be designed for that in some way - else it appears complicated for nothing)
- what is supposed to happen when the CDS fan is not here? According to the wiring diagram(*), it shouldn't affect the main fan, but it would not spin with the A/C on. Considering my A/C doesn't work anyways, should I fear overheating? (AFAIK the CDS fan has been dead for quite a long time and I never had overheating trouble.)
(*) btw in the Haynes manual's wiring diagram it seems the #2 and #3 A/C fan relays are mixed up. It is the #2 which is 5-pin, according to the fuse box.