After repairing Generators for a total of 33 percent, Wiretap activates:

After repairing a Generator for 3 seconds, press the Active Ability button to install a Wiretap, which stays active for 60/70/80 seconds.
The Auras of trapped Generators are revealed to all Survivors in yellow.
When the Killer comes within 14 metres of a trapped Generator, their Aura is revealed to all Survivors.
Damaging the Generator destroys the Wiretap.

Unlocks potential in your Aura-reading ability:
While you are hooked:

The Auras of all Survivors are revealed to one another.
Whenever the Killer is within 8/12/16 metres of your Hook, their Aura is revealed to all Survivors.
While any other Survivor is hooked:

The Auras of all other Survivors are revealed to you.
Whenever the Killer is within 8/12/16 metres of the hooked Survivor, their Aura is revealed to you.

Whenever you cleanse a Totem, Clairvoyance activates:

When empty-handed, press and hold the Ability button to unlock your full Aura-reading potential, allowing you to see the Auras of the Exit Gate Switches, Generators, Hooks, Chests, and the Hatch within 64 metres for 8/9/10 seconds.

Whenever another Survivor is hit with a Basic Attack or Special Attack within 16 metres of you, Self-Preservation activates:

Scratch Marks, Grunts of Pain when injured, and Bleeding are suppressed for the next 6/8/10 seconds.