GF82.10-P-2112TY Headlamp Range Adjustment Control Unit, Component Description

GF82.10-P-2112TY Headlamp Range Adjustment Control Unit, Component Description
- with CODE (615) Bi-xenon headlamp unit with integrated curve illumination

Component Identification:

Location
The headlamp range adjustment control unit is located below the front passenger seat.

Task
To exchange data, the headlamp range adjustment control unit is connected to the Controller Area Network bus class C (engine compartment) (CAN-C) and with the headlamp range adjustment bus (HRA bus).

The headlamp range adjustment control unit automatically maintains the incline angle of the light beam of the left front lamp unit (E1) and of the right front lamp unit (E2), irrespective of the vehicle load, within the limits prescribed by law. Headlamp range changes, which may be caused by dynamic vehicle inclination changes such as accelerating or decelerating, are also compensated. Moreover, the headlamp range adjustment control unit implements the control of the curve illumination.

The headlamp range adjustment control unit reads in the following components or signals:

direct
^ Front axle level sensor (B22/2) (without code (489) Airmatic (semi-active air suspension))
^ Rear axle level sensor (B22/3) (without code (489) Airmatic (semi-active air suspension))

Via CAN-C
^ from the AIRmatic with ADS control unit (N51) (with code (489) Airmatic (semi-active air suspension)):
- rear axle level sensor (B22/3)
- left front level sensor (B22/8)
- right front level sensor (B22/9)

^ front the steering column module (N80):
- steering angle sensor (N49)

^ from the SBC control unit (A7/3n1):
- left front rpm sensor (L6/1)
- right front rpm sensor (L6/2)
- left rear rpm sensor (L6/3)
- right rear rpm sensor (L6/4)
- stop lamp switch (S9/1)

^ with gasoline engines, the ME-SFI control unit (N3/10):
- accelerator pedal sensor (B37)

^ with diesel engines, the CDI control unit (N3/9):
- accelerator pedal sensor (B37)

^ from the driver-side SAM control unit with fuse and relay module (N10/1):
- circuit 61
- circuit 56b

The headlamp range adjustment control unit actuates the following components:

Via HRA bus
^ via the HRA power module (E1n3):
- left headlamp range adjustment motor (E1m1)
- left dynamic curve illumination motor (E1m2)

^ via the HRA power module (E2n3):
- right headlamp range adjustment motor (E2m1)
- right dynamic curve illumination motor (E2m2)