Passenger-Side Outside Mirror Park Position, Function - GF88.79-P-2006GW
Model 463 (except 463.342)
as of model year 2013
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 a park position of the right outside mirror (M21/2) and call it up electrically 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
To define the park position of the right outside mirror, first select 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 (S20s11) in driver power window and outside mirror adjustment switch (S20).
The reverse gear engaged status is defined as follows:
The request to "Engage gear range R" is defined by the corresponding selector lever position. The fully integrated transmission control unit (Y3/8n4) will transmit the selector lever position in vehicles as of 03.04.2018 via the drive CAN (CAN C1), powertrain control unit (N127) and suspension FlexRay (Flex E) to the electronic ignition lock control unit. In vehicles up to 02.04.2018, the fully integrated transmission control unit transmits the drive range status via the drive CAN (CAN C), CDI control unit (N3/9) (diesel engine) or ME-SFI [ME] control unit (N3/10) (gasoline engine, except engine 176) or powertrain control unit (engine 176) and suspension CAN 1 (CAN E1) to the electronic ignition lock control unit.
The electronic ignition lock control unit uses it to generate the "Reverse gear engaged" status and sends it to the right front door control unit over the interior CAN.
The right outside mirror is adjusted by actuating the outside mirror adjustment switch (S20s12). 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 directly reads in the signals from the vertical inclination adjustment potentiometer (M21/2r2) and horizontal inclination adjustment potentiometer (M21/2r3), evaluates them and automatically stores the current position of the right outside mirror as the park position.
The park position of the right outside mirror can be stored additionally and manually via the left front memory switch function (S22s6) in the left front seat adjustment switch group (S22).
Storing the park position is performed by actuating the left front memory function switch. After a brief actuation of the left front memory function switch followed within 3 s by the actuation of the outside mirror adjustment switch in a user-defined direction, the current position of the right outside mirror is stored in the right front door control unit as the park position. 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.
Manual adjustment of the right outside mirror in the park position is stored as new park position.
Calling park position
When the reverse gear is engaged, the park position of the right outside mirror is called.
The reverse gear engaged status is defined as follows:
The request to "Engage gear range R" is defined by the corresponding selector lever position. The fully integrated transmission control unit will transmit the selector lever position in vehicles as of 03.04.2018 via the drive CAN, powertrain control unit and suspension FlexRay to the electronic ignition lock control unit. In vehicles up to 02.04.2018, the fully integrated transmission control unit transmits the drive range status via the drive CAN, CDI control unit (diesel engine) or ME-SFI [ME] control unit (gasoline engine, except engine 176) or powertrain control unit (engine 176) and suspension CAN 1 to the electronic ignition lock control unit.
The electronic ignition lock control unit uses it to generate the "Reverse gear engaged" status and sends it to the right front door control unit over the interior CAN.
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" not present for 10 s.
- Vehicle speed above 15 km/h.
- Right outside mirror adjustment switch not actuated.
In vehicles as of 03.04.2018, the instrument cluster (A1) will transmit the vehicle speed via the user interface CAN (CAN HMI), electronic ignition lock control unit and interior CAN to the right front door control unit.
In vehicles up to 02.04.2018, the instrument cluster transmits the vehicle speed via the interior CAN to the right front door control unit. The driving position is resumed even when the right outside mirror is adjusted manually via the outside mirror adjustment switch.
| Electrical function schematic for passenger-side outside mirror park position | Model 463 (except 463.342) as of model year 2019 | PE88.79-P-2054-97ZGB | |
| Model 463 (except 463.342) as of model year 2013 up to model year 2019 | PE88.79-P-2054-97ZGA | ||
| Overview of system components for electric mirror | GF88.79-P-9996GW |