I can help you. Those 1 and 2 wire connectors tie the front cooling
system to the A/C system in the rear of the van, if so equipped.

Page 97.145 of the Bentley wiring diagrams shows connector T2h.

Pin 1 is red/black going to the dash from the A/C, to run the radiator
fan whenever the A/C is on.

Pin 2 is black/yellow, going from the dash to the A/C to turn off the
compressor whenever the radiator high temp switch is triggered.

That single wire connector is also for A/C if present.
Page 97.144 shows connector T1b.
It comes from the rear A/C high freon pressure switch to trigger the
middle stage of the radiator fan whenever the pressure gets high inside
the A/C system.

(some of the other wire colors of the radiator fan circuit are wrong in
the Bentley in the A/C diagrams section)

Mark

Max Wellhouse wrote:
> I have three unplugged wires around the fuse block and can't figure
> out where they're spozed to go in a 90 GL that originally had
> AC.  One pair are set up as male spades in a T-2 type connector at
> right angles to each other. The wires are red/black and black/yellow
> and both head down to the conduit/loom that travel towards the
> radiator fan area.  The other is a skinny blue/red wire with a female
> spade encased in a yellow insulator.  It originates from  what
> appears to be the brown multi point connector in the back of the fuse
> block.  The color codes certainly hint of cooling system, but unless
> they plug into the J101 relay, I don't know where they go.  I have
> had some potential cooling fan issues, but the Bentley says the blur
> red wire is spozed to be 1.5 and this wire seems skinner than that.
>
> Any help would be appreciated on a lonely Friday night!!
>
> TIA
>
> DM&FS
>