Do you have a big resistor mounted behind the driver's side headlite?  If
so, unplug it and check it with an ohmmeter.  If one of the three wires
does not conduct to the others, you have found a problem.

For late model vans with AC, the circuitry to control the various fans
speeds is very 'interesting".

Larry A.

On Tue, May 31, 2016 at 5:13 PM, John Rodgers <jrodgers113@gmail.com> wrote:

> How is the radiator fan turned on and off, and just how is the speed
> adjustment ccomplished?
>
> At the moment, my fan simply does not run. I want it to run, and run
> correctly.
>
> John
>