Range Rover 2.5 td VM wiring diagram

Chances are you'll need to get the factory manual which for these cars is a big thick book.

Quick look at the one for mine - '86 3.5 EFi - which has a supplement (LSM180WS4 Ed2) covering the 2.4 & 2.5VM engines.
This shows a VM circuit diagram for the 2.4 1986 but for later cars gives the following publication numbers. Some of which are included in that manual & I've put an asterisk against those.:
* 1987 Model Year LSM180 WS1 ed2
* 1988 MY LSM180 WS2
* 1989 MY LSM180 WS3
1990 MY LSM180 WS5 ed2
1991 MY LSM180 WS6
I don't know if the last two would be on the RAVE disc which was the first CD manual & replaced the paper ones.

Mine covers 'All petrol & diesel models from 1986 to 1989' and is publication number SRR660ENWM. Can usually be found on ebay. Not cheap but mine has paid for itself many times over!

Try https://www.dingocroft.co.uk/ in Wycombe. I got the paper manuals for the 1988 I had a few years back.

https://www.dingocroft.co.uk/acatalog/Classic_books.html