I have an 89 Delta 88 and if you have Electronic Climate Control there is a control module located just right(passenger side) of center at the firewall. It is in the same location as the blower fan resister assembly on a car with standard a/c controls.
it does not have a relay for the fans. they are controlled by the fan control module located underneath the driver side frame rail.
it is behind the left head lamp hooked to the battery
I believe it is located under the passinger side seat? At least on my 89 LXi is where it is
Answer:Is located right there next to the fan, on the radiator. The fan control module is inside the car, behind the glove box lid.
On the engine side of the firewall located approximately behind the position of the HVAC control module in the dash
Depending on what type of fan, the fan control switch can be located on the wall for a ceiling fan. Each type of fan will have a different location for the fan control switch.
Not that I am aware of. Are you sure the body control module is the problem and not the power or grounds. You may even have a bad fan switch.
It's a small black box located directly behind the glove box inside the car.
The module is located underneath the battery tray and mounted with 2 bolts from the top side. best way is to remove the battery and tray to get access.
The body control module contains the fan relay, fuel pump relay, ecc relay and I think there is another relay within the unit, although my memory isn't helping me much. The body control module is located under the hood at the top inside of the driver side strut tower. Hope this helps. ~ Tony
Extra cooling. For there to be an auxiliary fan there usually must be a main fan. So,the auxiliary fan does some minor cooling purposes where it's not ideal to use a large fan.