Been trying to find a schematic for the vac lines just to check everything else is ok.
There is a good layout diagram in the B280 Green Book, TP 31106/1 - but I can't find it anywhere online.
I lashed out and got one of these -
http://www.skandix.de/en/spare-parts/accessories/print-digital/ebook-usb-stick-original-technical-publications-multi-user-otp-volvo-700-tp-51955usb-windows-pc-only/1067926/
I also got a 940 series USB stick. They have a whole heap of Green Books on them which cannot be found as hard copies in the Volvo Tech Bookstore any more. The problem with these things is that they don't allow me to do screenshots, and any printing of pages ends up with a huge 'watermark' on the printed page.
They're not cheap, but I wanted the data, so I can put up with the limitations. Fortunately, I have some hard copy Green Books as well, so I have the complete set now with the USB stick.