CLK 320 Cabriolet (208.465) V6-3.2L (112.940) (2000)
Electronic Brake Control Module: Description and Operation
ABS Only
For information on this component and related systems, refer to Antilock Brake System Description and Operation.
ABS With Traction or Stability System
For information on this component and related systems, refer to Traction Control System Description and Operation. See: ASR/ETS/ESP/SPS Control
Module
GF42.30-P-4500-01A Function Description of ABS Control Module
GF42.30-P-4500-01A Function Description Of ABS Control Module
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with CODE (470a) Anti-lock braking system (ABS)
The ABS control module is divided up into the following functions:
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Signal conditioning
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Logic section
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Safety circuit
Signal conditioning
The following input signals are conditioned for the logic section:
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3 speed sensors (models 170, 202, 208)
4 speed sensors (model 168)
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Stop lamp switch (4-pin) (S9/1)
Logic section
The conditioned signals are processed in the logic section and converted into output signals.
Speed signals:
The conditioned speed signals are continuously compared with each other and then with the preset slip thresholds (differential speeds between the front
and rear wheels, depending on vehicle speed). The following variables are determined by way of this comparison
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Brake slip
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Wheel acceleration
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Front wheel driving speed
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Curve recognition
An ABS control mode is initiated if the variables determined exceed the preset slip thresholds.
Stop lamp switch signal:
A signal is transmitted to the logic section when the brake is operated. The control module recognizes the braking process.