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Home >> Smart >> 2010 >> Fortwo BRABUS, 2D Convertible >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes -- FORTWO (CABRIO) >> Basic Knowledge >> Brake light switch, component description - GF42.10-P-2010MCC

Brake light switch, component description - GF42.10-P-2010MCC

MODEL 451.3/4 

Fig 1: Locating Stop Lamp Switch
G07275981Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location 

The brake light switch is located in the brake pedal module.

Task 

The brake light switch detects brake pedal actuation and transfers the information to the ESP control unit (N47-5) and to the SAM control unit (N10/10).

Design 

The brake light switch consists of a normally closed contact and a normally open contact.

Function 

The N.O. contact transfers the signal for actuation of the brake pedal to the SAM control unit.

The N.C. contact transfers the signal for actuation of the brake pedal to the ESP control unit.