RAM 3500 Van V8-5.2L CNG VIN T (1996)
ABS Main Relay: Description and Operation
CIRCUIT OPERATION
When the Controller Anti-Lock Brakes (CAB) grounds the Anti-lock Brakes (ABS) power relay on circuit B116, the relay contacts close and
connect circuit A10 from fuse 7 in the Power Distribution Center (PDC) and circuit B120. Circuit A20 from fuse 5 in the fuse block splices to feed
the coil side of the ABS power relay
From the ABS power relay circuit B120 splices to power the pump motor and all the solenoids in the front hydraulic valve. Circuit B120 also
supplies power to the solenoids in the rear hydraulic valve. Additionally circuit B120 provides an input to cavity 34 of the CAB. The input tells the
CAB that power has been supplied to the pump motor.
