9-5 (9600) L4-2.3L Turbo (B235) (2001)
Electronic Brake Control Module: Description and Operation
TC/ABS 5.3
Description
Control Module
Number of terminal pins:
31
Power supply, (+30 circuit):
Pin 17, 18
Power supply (+15 circuit):
Pin 15
Main ground:
Pin 19
Ground Pump Motor:
Pin 16
Working voltage:
9-16 V
Power consumption, rest position:
Less Than 3 mA
NOTE: The control module is integrated into hydraulic unit
Operation
The control module is integrated into the TC/ABS unit and has a 31-pin connector.
A wheel sensor at each wheel sends a wheel-speed signal to the control module.
The ABS works in such a way that the solenoid valves (inlet and outlet valves) and return pump modulate the hydraulic brake pressure when any of
the wheels is retarded more than the others. The pressure can either be maintained at a constant level or can be reduced so that maximum braking
power will be achieved by each individual wheel on the prevailing road surface.