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hello and thank you or choosing just answer.
In order to better assist you, I need a little bit more info.
What 2 lights are on in the dash when you turn the key on? Does your vehicle crank and does not start? or does not crank at all?
OK since your car does not crank that has nothing to do with immobilizer since the immobilizer will cut fuel\spark and the vehicle will crank but will not start. So moving on to check basic starter circuit.
Start by checking for voltage at the S terminal on the starter. Using your multimeter on VDC connect the black meter lead on the battery negative side and your red meter lead on the small gauge black wire on the starter and attempt to start the vehicle. Let me know what voltage reading you have when you try to do that.
Why were the fuses pulled? And which fuses?
OK, I am sorry to be direct and rude maybe. You and your friend misplaced something. Go back into that fuse box and check every since fuse and relay to make sure that you did not misplace a fuse or a relay and make sure that everything is in it's correct place and seater properly. Refer to this diagram below to know where everything goes.
PLEASE check every single fuse location and proper connection, Pull every fuse out, pull every relay out and make sure it goes to the right place. Remember that there are empty slots in that fuse box, every fuse you pull out shine a light where it goes and make sure you see 2 metal tabs inside.
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I'm sorry about that.
I don't believe it has to do with the immobilizer. I will opt out and let other experts help you although i'm sure most experts will focus on the same area where I was.