Passenger-Side Outside Mirror Park Position, Function - GF88.79-P-2006FR
Model 257, 290 up to model year 2021 with code P49 (MIRROR PACKAGE)
Function requirements, general
- No overvoltage or undervoltage
- Function for park position via variant coding activated
- Circuit 15R ON
The circuit 15 status is sent by the electronic ignition lock control unit (N73) over the interior CAN (CAN B) to the right front door control unit (N69/2).
Passenger-side outside mirror park position, general
It is possible to save and call a park position of the outside mirror (M21/2) when the car is shifted into reverse, allowing the driver to see the curb.
The passenger-side outside mirror park position function includes the following subfunctions:
- Store park position
- Calling park position
- Calling drive position
Store park position
The right outside mirror must be selected to define the park position of the right outside mirror. Then engage reverse gear, then the right outside mirror can be adjusted.
The right outside mirror is selected by actuating the right outside mirror adjustment switch (S20s8) in driver power window and outside mirror adjustment switch (S20).
The request to "Engage gear range R" is defined by the corresponding selector lever position. The fully integrated transmission control electric controller unit control unit (Y3/8n4) transmits the selector lever position via drive CAN (CAN C1), powertrain control unit (N127) and suspension FlexRay (Flex E) to the electronic ignition lock control unit.
The electronic ignition lock control unit uses the incoming information to generate the status "Reverse gear engaged" and transmits it via the interior CAN to the right front door control unit.
The right outside mirror is adjusted by actuating the outside mirror adjustment switch (S20s9). The left front door control unit (N69/1) reads in the selection and requests for adjusting via left front door LIN (LIN B5) and transmits the corresponding requests to adjust the right outside mirror to the right front door control unit via the interior CAN. The right front door control unit then actuates the vertical inclination adjustment actuator motor (M21/2m1) and horizontal inclination adjustment actuator motor (M21/2m2) accordingly.
The right front door control unit directly reads in the signals from the vertical inclination adjustment potentiometer (M21/2r2) and the horizontal inclination adjustment potentiometer (M21/2r3). The right front door control unit then evaluates these signals and stores the current position of the right outside mirror as the park position automatically.
Vehicles with code 275 (Memory package):
The park position of the right outside mirror can be stored additionally and manually via the left front memory switch function (S22s7) in the left front seat adjustment switch group (S22).
After momentarily pressing the left front memory function switch and then actuating the outside mirror adjustment switch in any direction within 3 s the current position of the right outside mirror in the right front door control unit is stored as park position. Manual adjustment is not performed. The left front door control unit reads in the corresponding status via left door LIN and transmits the request "Store passenger outside mirror park position" to the right front door control unit via the interior CAN.
If the right outside rear view mirror is adjustment manually when it is in the park position or during the time it is moving to the park position, the final position after adjustment is saved as the new park position.
Calling park position
By engaging the reverse gear for longer than 0.6 s, the park position for the right outside mirror is called up.
The request to "Engage gear range R" is defined by the corresponding selector lever position. The fully integrated transmission control electric controller unit control unit transmits the selector lever position to the electronic ignition lock control unit via the drive CAN, powertrain control unit and suspension FlexRay.
The electronic ignition lock control unit uses the incoming information to generate the status "Reverse gear engaged" and transmits it via the interior CAN to the right front door control unit.
The right front door control unit then actuates the vertical inclination adjustment actuator motor and horizontal inclination adjustment actuator motor until the park position is reached. The mirror glass position is recognized using the data of the vertical inclination adjustment actuator motor and horizontal inclination adjustment actuator motor.
Calling drive position
The right outside mirror is automatically moved back to the original position when one of the following conditions is fulfilled:
- Circuit 15 OFF
- Signal "Reverse gear engaged" is not present for more than 10 s
- Vehicle speed greater than 15 km/h
- Right outside mirror adjustment switch not actuated
The instrument cluster (A1) sends the vehicle speed via user interface CAN (CAN HMI), electronic ignition lock control unit and interior CAN to the right front door control unit.
| Electrical function schematic for passenger-side outside mirror park position | PE88.79-P-2054-97XBA | ||
| Overview of system components for electric mirror | GF88.79-P-9996FR |