Mitubishi Magna Workshop Service Manual for TH-TJ-TL (inc All Wheel Drive & Ralliart) and Verada KH-KJ-KL 1999 - 2004 Generation 3 (Gen III).
Mostly applies also to UK, US and Canada Diamante, and also most sections similar to later Gen III Magna 2005-6.
The manual is a set of interlinked pdf files. Download includes notes on using the iso file and pdf.