GF42.50-P-5119RI SBC Hydraulic Unit, Component Description

GF42.50-P-5119RI SBC hydraulic unit, component description
- except CODE (P99) Special model "AMG Black Series"

Component Identification:

Location
The SBC hydraulic unit is located at the right front of the engine compartment.

The SBC control unit is installed on the SBC hydraulic unit.

Task
The SBC hydraulic unit has the following tasks:
^ Reading in of sensors, pickups and signals
^ Evaluation of input factors
^ Actuation of components

Reading in of sensors, pickups and signals
The input factors are read in with the following connections:
^ Direct line
^ Electrohydraulic brake CAN (CAN EHB)

Direct line
The signals from the following components are read via direct lines:

- High pressure charge pump (A7/3m1)
- SBC pedal value sensor (B37/1)
- Left front rpm sensor (L6/1)
- Right front rpm sensor (L6/2)
- Left rear rpm sensor (L6/3)
- Right rear rpm sensor (L6/4)
- Brake light switch (S9/1)
- Diagnosis (serial)

Electrohydraulic brake CAN
The SBC hydraulic unit communicates with the ESP, SPS [PML] and BAS control unit (N47-5) via the electro hydraulic brake CAN.

Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.

Actuation of components
Components are actuated with the following lines:
^ Direct line

Direct line
The following components are actuated via a direct line:

- Left front separation valve (A7/3y1)
- Right front separation valve (A7/3y2)
- Front axle balance valve (A7/3y3)
- Rear axle balance valve (A7/3y4)
- Left front inlet control valve (A7/3y6)
- Left front outlet control valve (A7/3y7)
- Right front inlet control valve (A7/3y8)
- Right front outlet control valve (A7/3y9)
- Left rear inlet control valve (A7/3y10)
- Left rear outlet control valve (A7/3y11)
- Right rear inlet control valve (A7/3y12)
- Right rear outlet control valve (A7/3y13)
- Rear SAM control unit (N10/8) (brake light actuation)
- Passenger-side SAM control unit (N10/11) (brake light switch signal, Sensor Brake Control (SBC) shutoff prevention, SBC operational state)