Citadel Flux and Wards Access: 1
Though you can scan the keepers in any order. , we have numbered the keepers in a logical progression based on speaking with Chorban to initiate the mission. If you speak to Jahleed first, this guide can still be followed as you see fit.
Citadel Tower Keeper locations in Mass Effect
After speaking with Chorban, you can scan the keeper that is right in front of him (keeper 1).
Next, there is a keeper to the far-right side of Citadel Tower (keeper 2).
Then you can head to the lower left-hand corner and find the third keeper (keeper 3).