LOL, way over my head.


A13 is the A/C high Pressure Switch
E7 is AIR Bypass Control
I'm still uncertain about whether B7 can be used for the underhood ESC.

I'd bet on B11 or B14 being VATS.

Nothing about diesel engines, the new book is the S/T Driveability & Emissions Manual. I've woundered about those too.

Here's what I've got so far:

Got the new book in today, and F8 is the correct pin for the power steering switch. Also, fount out that B1 is for the DIS system used with the 2.2L. It is called the 1X Signal, and is used for ASDF...

I've always been skeptical of that answer, since that pin is used with 4wd, so I just order a 1994 GM service manual. Should have a answer in a couple weeks.

With the 427 it will come on at a certain RPM + a whole bunch of other parameters.