On a Wrangler with factory lockers this connector links the differential lock actuator to the harness. It sits low on the axle where it lives in mud, water and road salt, so corrosion inside the connector body is a common reason lockers stop engaging or the dash indicator misreports, even when the actuator itself tests fine.

Mopar Accessories 68003570AA Differential Locker Actuator Connector Features:

• Fits 2007-2018 Jeep Wrangler JK models.
• For Dana 44 front or rear axles.
• Connects the differential lock actuator to the vehicle harness.
• Genuine Mopar terminal and connector geometry for correct fit and retention.
• Sold individually.