Grand Cherokee 4WD L6-242 4.0L VIN S MFI (1993)
Brake Fluid Pump Relay: Description and Operation
The ABS pump/motor relay supplies power to the pump/motor. It is located in the power distribution center (PDC). The relay coil is powered by the
main relay and the coil ground is controlled by the Controller, Anti-lock Brake (CAB). The pump/motor relay is a special five-terminal relay and should
not be replaced with a standard relay.