make sure it's not in gear, remove relay R2 from the engine bay, turn ignition on II and let nanocom on that screen with the engine speed, take a paperclip or piece of wire and get some help as to be able to watch the screen while bridging the perpendicular cavities in the fusebox where the relay was cos then it will crank and should not disable nanocom you should be able to see battery voltage in the ECU then too
My friends call me Fery
2000 Discovery Td5 ES manual
Hawkeye v.6, Nanocom EVO,
VDM UCANDAS, oscilloscope
if you think my english is peculiar it means you didnt hear my japanese
ALL MY ADVICES ARE BASED ON MY OWN KNOWLEDGE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.