Headlamp Control Unit, Component Description - GF82.10-P-2020RR
Model 190
Shown on left lamp unit, up to 30.11.2018, up to model year 2019
Location
The left he headlamp control unit is located on the right front lamp unit.
The headlamp control units are tightly screwed to the housing of the respective front lamp units. The headlamp control units are connected to the wiring harness The left headlamp control unit is located on the left front lamp unit and the right on the vehicle side via the respective front lamp unit.
Task
The headlamp control units operate in a master-slave combination and they communicate with each other over the chassis CAN 2 (CAN E2). As the master, the left headlamp control unit synchronizes the right headlamp control unit.
The headlamp control units have the following tasks:
- Reading in of sensors and signals
- Evaluation of input factors
- Controlling functions
- Actuation of components
Reading in of sensors and signals
The input factors are read in via the following connections:
- Direct line
- Chassis CAN 2
Direct line
The following components are read in by the left headlamp control unit via a direct line:
- Rear axle level sensor (B22/3)
- Left front level sensor (B22/9)
Chassis CAN 2
The signals are read in by the headlamp control unit via chassis CAN 2.
The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).
Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.
Controlling functions
The following functions are realized by actuating the appropriate components:
- Low beam
- Turn signal lamp
- High beam and headlamp flasher
- Automatic headlamp range adjustment (HRA [LWR])
- Standing/parking lights
- Daytime running lamps
- Side marker lamp (with CODE 460 (Canada version) or CODE 494 (USA version))
Actuation of components
Components are actuated with the following connection:
- Direct line
Direct line
The following components are actuated by the left headlamp control unit via a direct line:
- Left high beam (E1e1)
- Left low beam (E1e2)
- Left front turn signal lamp (E1e5)
- Left front side marker light (E1e6) (with CODE 460 (Canada version) or CODE 494 (USA version))
- Left parking light and daytime running light (E1e13)
- Left headlamp range adjustment actuator motor (E1m1)
- Fan motor 1 for left front lamp unit (E1m4)
The following components are actuated by the right headlamp control unit via a direct line:
- Right high beam (E2e1)
- Right low beam (E2e2)
- Right front turn signal lights (E2e5)
- Right front side marker light (E2e6) (with code 460 (Canada version) or code 494 (USA version))
- Right parking light and daytime running light (E2e13)
- Right headlamp range adjustment actuator motor (E2m1)
- Fan motor 1 for right front lamp unit (E2m4)
| Exterior lights wiring diagram | Model 190 up to 11/30/18 up to model year 2019 | PE82.10-P-2000-97HBA |