It was discovered in the Doagh Road area at around 2.40am on Monday.
Army bomb experts were called to the scene and carried out examinations on the device which was described as a "small, crude but viable, explosive".
The security alert ended at around 6.20am.
Meanwhile a separate overnight alert in the O'Neill Road area of Newtownabbey has been declared a hoax.
It comes after a "small, crude but viable" bomb was left outside a Catholic church in Glengormley over the weekend.
Meanwhile, a man, 30, was arrested over recent security alerts in the Newtownabbey area.
He was detained on suspicion of riot, improper use of a public electronic communications network and making explosives under suspicious circumstances.
He has been bailed pending further police enquiries.
The arrest follows two searches in the area. A number of items were seized, a police spokesperson said.