Grand Cherokee 4WD V8-4.7L (2003)
All of the circuits entering and leaving the Junction Block (JB) do so through up to five wire harness connectors, which are connected to the JB
through integral connector receptacles molded into the JB housing. Internal connection of all of the JB circuits is accomplished by a printed circuit
board. There are also two separate wire harness connections to connector receptacles that are integral to the BCM. Refer to Junction Block in Wiring
Diagrams for additional information and the location of complete JB circuit diagrams.