CLS 55 AMG (219.376) V8-5.5L SC (113.990) (2006)
Brake Light Switch: Description and Operation
GF82.10-P-3010TY Stop Lamp Actuation, Function
GF82.10-P-3010TY Stop lamp actuation, function
MODEL 219.3 up to 31.5.06
except CODE (494) USA version
MODEL 219.3 up to 30.6.06
with CODE (494) USA version
Component Identification
Stop lamp actuation
Function requirements
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Circuit 15 ON
Function
When the service brake is actuated, voltage is applied over the switching contacts in the stop lamp switch to the ESP control unit, which then sends the
"Stop lamp on" signal via CAN-C to the central gateway control unit. The central gateway control unit relays the "Stop lamp on" signal via CAN-B to
the rear SAM control unit.
At the same time, the ESP control unit forwards the "Stop lamp On" signal (circuit 54) directly to the rear SAM control unit.
The rear SAM control unit actuates the stop lamps and the center high-mounted stop lamp.
This direct actuation should prevent any time delay in forwarding the switch-on request actuated by the stop lamp switch over the two CAN data
buses.
Along with its actual task of actuating the stop lamps, the stop lamp signal is also important for other functional areas in the vehicle, and for this
reason it is sent from the central gateway control unit to CAN-B and CAN-C.
The stop lamps and the center high-mounted stop lamp are designed as a light emitting diode (LED) light source.
Stop lamp actuation, flashing on and off (emergency braking signal)
Function requirements
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Brake actuated
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Vehicle speed > 50 km/h
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Brake Assist System active or vehicle deceleration > 7.5 m/s2