Get a copy of "Haynes Motor Repair Manual"---for your model they"re really good. The books are published in England but are available. in the haynes manual for the 1980 thru 1983 is very hard to read it leads to a alot of dead ends and leaves you asking more questions then you started. if you can get a "Chiltons" manual is more helpful or a dealer diagram is more helpful.
One can find a wiring diagram for a Volvo 245 at Turbo Bricks. These can also be found at Volvo Club and at Volvo Tips.
you can find it in a workshop manual
You can find a diagram for replacing the air conditioning compressor on your 1994 Chevy 1500 pickup truck in a Chevy service manual. Many auto-parts stores will supply the diagram when you purchase the air conditioning compressor.
the library has chilton repair manuals,i just copy the page,pages that i need for .10 cents a copy
Here is diagram from 2carpros.com http://www.2carpros.com/car_repair_information/year/2001/make/volvo/model/v70/2001_volvo_v70_drive_belt_routing_diagram.htm
www.crutchfield.com
Is it not on the inside of the fuse-box cover?
where can you find a free diagram for putting a air conditioning belt on a 2001 Montero sport Mitsubishi?
There is a sticker on the core support that has it. Or, Haynes manual
where can I find a 1980 1.8l BRAT ENGINE DIAGRAM?
infolinks.com free pdf diagrams... took me forever to find these... be blessed
The diagram will be in a service manual. The local dealer might be able to print out a copy as well.