Ihave a 2005 s40 20diesel Volvo and need to find out the colour,s of the wires going to the diesel pump

go to this link might help you out..
manufacturer recommended transmission oil for 2005 Volvo S40 Google Search

Where does the fluid go?? Engine/trans/power steering?

You need to unplug the fuel return line from the fuel pump and suck the fuel back to the system on the pump and filter side.

No.# 31 fuse (25A - white colour) placed in the engine bay fuse box / relay plate, is for the front windscreen wipers for an Audi A3 2005 2.0 TDI. See pictures below:

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Are you letting the "wait" light go out before starting?

Hi,
There will be a wire on the injector pump that closes the FUEL SHUT OFF VALVE. The wire may have broken or come disconnected.
You may have to ask someone to help find the injector pump.

Happy Trails.

Sounds like you have a broken wire between the fuse box and the pump..
Check colour on the pump wire and trace back to box.. if you cannot find it and its only the pump playing up run a new wire from the FEED side of fuse to the pump but remove the old wire before connection up.. Or use a test light to find the short in old power line..
Let me know how you go Ron

look at the sockets where the bulbs go into the back up lights and note the colour of the wires

what part of wiring diagram ? and i might be able to email it to ya

Go to amazon.com, alibris.com, or abebooks.com and search for either a shop manual (best) or a Haynes-type guide. both will have wiring diagrams.
If this fails there is a store in Seattle that specializes in auto manuals but is pretty expensive. Paid $25 for an owners manual for my 1982 Volvo diesel, but they had it where no one else does. Don't have name but a Google search should turn it up - go the first route first