Pillars are lettered from front to back; A is by the windshield; D is by
the rear hatch.
  If your '86 is like my '91, you can remove the plastic cover on the
inside of the left rear pillar and find lots of interesting AC bits.
Good luck,
Larry A.
Just mounted my subie ECU and relays behind the cover on the right side

Mike Frost wrote:

> I'm trying to make sense of what the Bentley says about air conditioning,
> but I'm having trouble reconciling my A/C system to those shown in the
> manual. One thing that is slowing me down is that there are several
> letter
> references to the pillars but I don't know which pillars are which.
>
> Can someone fill me in on which is the B pillar, C pillar, D pillar, etc?
>
> My van is an early 86 model, actually built in July of 1985. It
> appears that
> the 1984/1985 wiring diagram of the A/C matches what I have. I'm having
> trouble locating the Compressor Clutch Relay, the Evaporator Relay,
> and the
> A/C Relay. Bentley says they should be located behind the left rear D
> pillar.
>
> Mike Frost
> 86 Vanagon GL "Wasserleaker"
>