2500 4x2 Pickup V10-488 8.0L Magnum (1996)
Hydraulic Control Assembly - Antilock Brakes: Description and Operation
CIRCUIT OPERATION
Circuit B120 from the ABS pump relay supplies voltage for the ABS pump motor plus the isolation and dump solenoids in the hydraulic control
unit. The Controller Antilock Brake (CAB) activates the pump motor and the solenoids by providing separate ground paths for each.
The CAB provides a ground path for the motor on circuit B60. Circuit B60 connects to the CAB two-way connector.
The CAB cycles the isolation and dump solenoids in the front anti-lock valve by providing a ground path for each on separate circuits:
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Circuit B248 connects to cavity 30 of the CAB and provides ground for the right front dump solenoid.
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Circuit B249 connects to cavity 33 of the CAB and provides ground for the right front isolation solenoid.
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Circuit B243 connects to cavity 35 of the CAB and provides ground for the left front dump solenoid.
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Circuit B245 connects to cavity 37 of the CAB and provides ground for the left front isolation solenoid.
There are two reset switches in the hydraulic control unit; a left switch and a right switch, both provide inputs to the CAB. Circuit B5 from the left
reset switch connects to CAB cavity 5 while circuit B18 from the right reset switch connects to cavity 18.
