What kind of sensor is this

[moledodge]

What is this sensor and what is it's purpose. This is by the rear tire on both sides next to the springs

http://imgur.com/QwuLfFG

 

[Hootbro]

It's a splice point for the ABS sensor.

 

[Tach_tech]

The wire there is for a wheel speed sensor. The white piece with the tape and zip tie isn't a sensor, it's just to help protect the wire.

 

[Ratket]

Government gps tracker-