Unsure about the td5 part now, it's a 2004 defender, the fuse board is located in front of the gear selector. There are three sections, 2x rows on the right and 1x lower row on the passenger side, the last fuse here is a 30a fuse, no. 28. It's labelled as Aircon on the back of the cover but this is absolutely not the case 😅
It seems to control the last section of the key, the dash lights don't operate, no glow plugs and no fuel pump priming. The key then won't turn the engine over also. It's a definite short as it's blowing the fuse straight away. The brown/purple travels into the bulk head and then I can't figure out where it disappears to.