FixVault

Knock Sensor 1 (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-KNOCK NO. 1 (5.7L/SRT8) - 2 WAY

GCWH680354Courtesy of DAIMLERCHRYSLER CORP.
CAV CIRCUIT FUNCTION
1 K42 20DB/OR KNOCK SENSOR NO. 1 SIGNAL
2 K942 20BR/LG KNOCK SENSOR NO. 1 RETURN