C 230 (203.040) L4-1.8L SC (271.948) (2005)
or rises above 17.5 V, the system is again shut down until the voltage returns to the specified range.
Speed-sensitive power steering subfunction (SPS)
The control unit calculates the specified current for actuating the SPS [PML} solenoid valve from the internal vehicle speed and the status signal
(Y10).
Brake Assist (BAS) sub-function
The conditioned input signals are processed in the logic section and a Brake Assist brake application introduced if necessary.
Wheel speeds and speed status signal outputs
Output of wheel rpm
For systems which require a wheel speed signal the ESP and BAS control unit (N47-5) (models 203, 209), ESP control unit (N47-5) (model 163)
provides the current wheel rpm from each wheel.
Output of rpm status signal
For systems which require information on the current vehicle status (vehicle stationary, vehicle moving, rpm sensor defective), the ESP and BAS
control unit (N47-5) (models 203, 209), ESP control unit (N47-5) (model 163) provides the rpm status signal.
Indicator lamp actuation
The signals from the parking brake and brake lining wear contacts are recorded by the ESP and BAS control unit (N47-5) (models 203, 209), ESP
control unit (N47-5) (model 163). Together with the signals for the multifunction display (except model 163) (A1p13), the ABS indicator lamp
(A1e17) and ESP warning lamp (A1e41) (models 203, 209), ETS warning light (A1 e36) (model 163) they are passed on to the instrument cluster
(A1) via the engine compartment CAN (CAN C).