Line Pressure Sensor (2.8L 45RFE) - Black 4 Way

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Line Pressure Sensor (2.8L 45RFE) - Black 4 Way Connector Pinouts

Courtesy of DAIMLERCHRYSLER CORP.