FixVault

Oil Pressure Sensor (5.7L/SRT8) Connector End View

WARNING: This page is about a different car, the 2008 Jeep Grand Cherokee, 2007 Jeep Grand Cherokee, and 2006 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
SENSOR-OIL PRESSURE (5.7L/SRT8) - BLACK 3 WAY

GCWH680359Courtesy of DAIMLERCHRYSLER CORP.
CAV CIRCUIT FUNCTION
1 F855 20PK/YL 5 VOLT SUPPLY
2 G6 20VT/GY ENGINE OIL PRESSURE SIGNAL
3 K900 20DB/DG SENSOR GROUND