BMW 7 Series: System Overview
System Circuit Diagram F01/F02
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Fig. 55: System Circuit Diagram F01/F02
SYSTEM CIRCUIT DIAGRAM LEGENDS
- Night Vision 2 camera
- Central gateway module (ZGM)
- Footwell module (FRM)
- Night Vision 2 control unit (NVE)
- Control panel, driver assist systems (BEFAS)
- Instrument cluster (KOMBI)
- Central information display (CID)
- Car Information Computer (CIC)
- Controller (CON)
- Junction box (JB)
- Video switch (VSW)
- Electromagnetic parking brake (EMF)
- Power distribution box, rear right
PT-CAN - Powertrain controller area network
K-CAN - Body controller area network
LIN-Bus - Local Interconnect Network bus
D-Bus - Diagnosis bus
KI.31L - Terminal 31, ground
KI.15N - Terminal 15, after running (voltage)
Connection of Control Units and Camera
The Night Vision 2 control unit and the night vision camera are connected through the following cables:
- Private CAN-bus; Diagnosis, programming and camera control
- LVDS-Video; Video signal from the camera
- CAN_POW; Power supply from control unit to camera, heating of camera lens
- Ground; Common ground of camera and control unit for suppressing interference.
The video signal is sent via a shielded LVDS cable between the camera and control unit. In the control unit the signal is converted into an dCVBS (d = differential) video signal and, depending on the equipment specification, transmitted to the CIC or the video switch.
The camera is powered under the following conditions:
- BMW Night Vision 2 switched on by pressing button in control panel of driver assist systems BEFAS
- Rain-driving lights sensor detects twilight or darkness.
The BMW Night Vision 2 control unit is powered by the rear distribution box via terminal 15N.
PT-CAN
The PT-CAN connection of the Night Vision 2 control unit serves to transmit the diagnosis and programming data and to read out the information from the RLS (brightness), the JB (driving lights status, wiper speed) and ICM (road speed and yaw rate). In addition, the terminal status and the vehicle identification number (VIN) are transferred to the control unit via the PT-CAN.
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System Functions
The BMW Night Vision 2 System Principle
The BMW Night Vision 2 camera is a heat image camera that converts thermal
radiation into electronic signals.
The thermal image is converted first by the sens
System Components
The BMW Night Vision 2 system consists of the camera, control unit, camera
washer jet, button and the sensor
system.
The BMW Night Vision 2 system consists of the following components:
Night Visio
Service Information
Adjusting Camera Pivot Position
The pivot position of the camera can be adjusted by means of an adjusting
screw at the bracket.
Fig. 73: Identifying Adjusted Camera Pivot Position
The following step
SEE MORE:
Carrying Out Steering Angle Sensor Adjustment
IMPORTANT: In vehicles with active steering, steering angle sensor
adjustment is integrated
in the service function "INITIAL OPERATION/ADJUSTMENT FOR ACTIVE
STEERING " and must not be carried out separately!
NOTE: Steering angle sensor adjustment must be carried out:
after replacement of followin
Checking Camshaft Timing On Right Side (N63)
Notes
IMPORTANT: The timing can only be checked with special tool 11 9 900.
The timing may be misinterpreted if it is checked without special tool 11 9 900.
Cylinders 1-4:
Necessary preliminary work
Remove right CYLINDER HEAD COVER
Remove FAN COWL with electric fan
Remove BELT PULLEY for air co
