What is the easiest way if the owner lost the immo chip from the only available key? Year of manufacture 2004, engine BMW 4.4L
The easiest way is to read dump from EWS and make key from dump.
Depends on what kind of programs you have.
For example, Xhorse VVDI Prog + VVDI2 + Super Chip XT27A or original PCF7936 transponder
Range Rover L322 EWS Immobilizer Location
Step 1: Read EWS dump
Read EWS eeprom 9S12DG128 with vvdi prog.
Read and save IMMO data.
Step 2: Make dealer key
Open VVDI2 software, select Transponder Programmer->Immo Data Tool
Select Euro->Range Rover->9S12 Load eeprom dump read by vvdi-prog
Insert transponder into vvdi2 programmer Super Chip Transponder XT27A01 XT27A66 Trasponder or original PCF7936.
Select Make dealer key.
Save new key data
Step 3 Write back data
Write new key data back to EWS module with vvdi prog.
Install EWS module back to vehicle.
Done.