GF82.15-P-3000CA Headlamp Cleaning System, Function

GF82.15-P-3000CA Headlamp Cleaning System, Function
MODEL 207.3 /4
- with CODE (600) Headlamp cleaning system

Function requirements, general
^ Low beam ON
^ Engine running (circuit 61 ON)
The low beams can be switched on by the auto on/off headlamps function, the daytime running lights function or manually. The front SAM control unit with fuse and relay module (N10/1) generates the "low beams ON" status corresponding to the pending request.
The circuit status of circuit 61 is transmitted to the front SAM control unit via the chassis CAN (CAN E) by the CDI control unit (N3/9) (with diesel engine) or the ME-SFI [ME] control unit (N3/10) (with gasoline engine).

Headlamp cleaning system, general
The headlamp cleaning system cleans the cover plates of the left front lamp unit (E1) and the right front lamp unit (E2) with a high pressure water jet.
Soiling on the cover plates are thereby removed.

Function sequence for headlamp cleaning system
When the low beams are switched on and the windshield washer system is activated for the tenth time, the cover plates of the front lamp unit are cleaned by the headlamp cleaning system.
The steering column tube module control unit (N80) reads in the position of the combination switch (S4) directly and sends it over the chassis CAN to the front SAM control unit, which then actuates the headlamp cleaning system pump (M5/2).
The telescopic nozzles are extended and the washer fluid cleans the cover plates of front lamp units.
Following another ten wash requests, the headlamp cleaning system pump is actuated again.
The number of washing requests is recorded by a counter in the front SAM control unit.
An automatic counter reset occurs when the ten wash requests have been reached or manually by switching off circuit 15.
The electronic ignition lock control unit (N73) sends the status of circuit 15 to the front SAM control unit via the interior CAN (CAN B).