Emergency Lamp Control, Function - GF82.10-P-3013GW

Model 463 (except 463.342) 

as of model year 2013 up to model year 2019 

Model 463.342 

Function requirements, general 

• Terminal 15 ON

The electronic ignition lock control unit (N73) sends the status of circuit 15 via interior CAN (CAN B) to the SAM control unit (N10).

Emergency light actuation, general 

The emergency light actuation ensures operation of the minimum exterior lighting in the event of failure of individual system components for the vehicle's exterior lights.

Function sequence for emergency light actuation 

The aim of the emergency lights actuation is to prevent a complete failure of the vehicle outside lights due to a processor failure or due to the failure of the interior CAN. For this, both the SAM control unit and the trailer recognition control unit (N28/1) are equipped with independent hardware that ensures the emergency light function is given.

If the interior CAN or of the SAM control unit malfunctions, the independent hardware in the SAM control unit actuates the stationary and low beams actuation and the brake light actuation within t < 3 s, depending on the status of circuit 54.

If the trailer recognition control unit fails, the independent hardware in the trailer recognition control unit activates the standing lights actuation in the trailer.

Overview of exterior lights system components

Model 463 (except 463.342) as of model year 2013 up to model year 2019 Model 463.342 as of model year 2013

GF82.10-P-9998GW