That dangling wire is intended for the A/C. It is to control the middle
speed rad fan relay from a pressure switch in the Freon system.

If you look at the A/C wiring diagram for your year you can see that
connector H6 is used differently than in a non-A/C van.

Also note that the relay output on H3 goes to a resistor first rather
than directly to the fan motor.

Mark

Gabriel Hourtouat wrote:
>...
> I found a Red/Blue wire dangling with a nice yellow connector, not
> connected to anything.  It originates at position H6 (Bentley page 97.68
> Fuse/Relay Panel rear view).  The connector is a single-wire connector.
> The wire is about 8" long.
>
> Seems this wire should be connected somewhere, no?  But I really don't see
> an other wire dangling!
>
> I guess that if my rad fan boosts to high speed when the temp goes above
> 102C, then this dangling wire is somehow superfluous - ?
>
> Comments welcome.
>
> Cheers,
> gab
>