Hi, If you dont have tester another BCU is to no avail cos it needs serious programming to make it work, if you grounded the purple wire it should have blown fuse F20 from interior fusebox or burn a contact in a splice joint so concentrate on that feed path, the worst scenario is that there's something interrupted in the interior fusebox so if you have access to a donor car replace that fusebox first to rule it out, you have to disconnect the battery first then after the swap and battery reconnection put ignition on pos II and leave it so 5 minutes as the IDM to reestablish digital data communication with the BCU
if you dont have one download a RAVE for the diagram and follow the feed from fuse F20, or if you are not handy with diagrams i'll tell you where to measure but RAVE is needed for the connector views... as long as the car starts i'm sure that the fuse and one path from the fusebox is good cos it feeds the passive remobilisation coil too and unless the passive immobilisation is disabled it won't start
Discovery Td5 (2000), manual, tuned
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