GF82.15-P-3000FA | Headlamp cleaning system, function | 22.2.08 |
MODEL 203.7
with CODE (600) Headlamp cleaning system
as of model year 09/YoM 08 model refinement package
Function requirements, general
Circuit 15 On
Low beam ON
Headlamp cleaning system (HCS), general
The headlamp cleaning system (HCS) cleans the headlamps automatically.
HCS function sequence
After the first wash request by operating the combination switch (S4), the position of which is read in by the steering column tube module (N80), the request is transmitted to the SAM control unit with fuse and relay module (N10/1) via the interior CAN. In response, this actuates the HCS [SRA] pump (M5/2).
The HCS pump is actuated again after ten more wash requests.
The number of washing requests is determined 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 circuit 15 off.
The front SAM control unit detects the switched-in low beam via the status of the rotary light switch (S1s1), which is read in by the front SAM control unit.
| Electrical system function schematic for headlamp cleaning system (HCS) | ||
Front SAM control unit with fuse and relay module, component description | N10/1 | ||
Component description for the EZS control unit | N73 | ||
Steering column module, component description | N80 | ||
HCS pump, component description | M5/2 | ||
Light switch module, component description | S1 | ||
Combination switch, component description | S4 |
Referenced documents
- gf5421p6050fa Steering column module, component description
- gf5421p6070fa Front SAM control unit with fuse and relay module, component description
- gf5425p4210fa Light switch module, component description
- gf8057p6003fa Component description for the EZS control unit
- gf8215p2161fa HCS pump, component description
- gf8230p5000fa Combination switch, component description
- pe8215p205097fa Electrical system function schematic for headlamp cleaning system (HCS)