Backup camera (RFK), function - GF54.65-P-0005GMJ
MODEL 164.1 as of Model Year 09/Modification Year 08 model refinement package with CODE (218) Backup camera with CODE (498) Japan version
MODEL 164.8, 251.0 as of Model Year 09/Modification Year 08 with CODE (218) Backup camera with CODE (498) Japan version
General function requirements
- Circuit 15 On
Reversing camera, general
The reversing camera system assists the driver when reverse parking and when backing up.
The reversing camera system consists of the following subfunctions:
- Activate reversing camera function sequence
- Activate outside mirror camera function sequence
More information on reverse parking and parallel parking is available in the Reversing camera (RFK) operating instructions.
Additional function requirements for activating reversing camera
- Reverse gear engaged
- Liftgate closed
Activate reversing camera function sequence
The signal "Reverse gear engaged" is transmitted to the engine compartment CAN by the intelligent servo module for DIRECT SELECT (A80). This signal is routed to the interior CAN by the central gateway control unit (N93).
The rear SAM control unit (N10/8) reads in the rear-end door locking unit control unit (A72) and forwards the status over the interior CAN. The reversing camera control unit (N66/2) then supplies power to the reversing camera (B84/3).
The camera images recorded by the reversing camera are transferred to the COMAND operating, display and controller unit (A40/3) via the reversing camera control unit as a CVBS signal (Composite Video Baseband Signal) and displayed.
In addition, the reversing camera control unit calculates guide lines based on the steering angle and the stored vehicle parameters. These are also integrated in the received camera images by the reversing camera control unit and transferred to the COMAND operating, display and controller unit as a CVBS signal. The rotation angle is recorded by the steering angle sensor (N49). The steering column tube module (N80) reads in the steering angle sensor data and sends it over the engine compartment CAN to the central gateway control unit. The central gateway control unit routes the data on the interior CAN to the reversing camera control unit.
The reversing camera system enables the driver to select between two parking modes:
- Reverse parking
- Parallel parking
The parking mode last selected is activated by engaging reverse gear.
The driver can switch between reverse parking mode and parallel parking mode via the COMAND operating, display and controller unit.
Voice support can also be activated via the COMAND operating, display and controller unit during parallel parking.
Additional function requirements for activating outside mirror camera
- Passenger-side mirror in drive position
- Passenger door CLOSED
- Vehicle speed v < 15 km/h
The left front RPM sensor (L6/1) and the right front RPM sensor (L6/2) record the wheel speeds at the front wheels. The signals of the RPM sensor are read in by the ESP control unit (N47-5) and sent over the engine compartment CAN to the instrument cluster (A1).
The instrument cluster uses the RPM sensor signals to generate a vehicle speed signal which is then sent over the interior CAN to the reversing camera control unit.
Activate outside mirror camera function sequence
If the passenger-side outside mirror reversing camera (B84/6) function is selected via the corresponding softkey on the COMAND operating, display and controller unit, the camera images from the passenger-side outside mirror reversing camera are displayed on the COMAND operating, display and controller unit by means of CVBS signals transferred via the reversing camera control unit.
In addition, the reversing camera control unit calculates guide lines based on the steering angle and the stored vehicle parameters. These are also integrated in the received camera images by the reversing camera control unit and transferred to the COMAND operating, display and controller unit as a CVBS signal.
| Backup camera (RFK) location of components | Model 164 | GF54.65-P-0005-01GMJ | |
| Model 251 | GF54.65-P-0005-01GVJ | ||
| Electrical function schematic, backup camera | Model 164 | PE54.65-P-2051-97MAB | |
| Model 251 | PE54.65-P-2051-97RAB | ||
| Backup camera (RFK), block diagram | GF54.65-P-0005-02GMJ | ||
| Reversing camera (RFK), operating notes | GF54.65-P-0005-03GMJ | ||
| Instrument cluster, component description | A1 | GF54.30-P-6000GM | |
| COMAND operating, display and controller unit, component description | A40/3 With code (527) COMAND APS with single DVD drive (with navigation system) |
GF82.85-P-3134GQJ | |
| Intelligent servo module for DIRECT SELECT, component description | A80 | GF27.19-P-4020AHZ | |
| Rear SAM control unit, component description | N10/8 | GF54.21-P-7030GM | |
| ESP control unit, component description | N47-5 | GF42.45-P-5118GM | |
| Backup camera control unit component description | N66/2 | GF54.65-P-5030GMJ | |
| Component description for the EZS control unit | N73 | GF80.57-P-6003GM | |
| Component description for the steering column module control unit | N80 | GF54.21-P-6051GM | |
| Central gateway control unit, component description | N93 | GF54.21-P-4170GM |