GF88.79-P-2006GM Passenger-Side Outside Mirror Park Position, Function

GF88.79-P-2006GM Passenger-side Outside Mirror Park Position, Function
- with CODE (275) Memory package (driver seat, steering column, mirrors)
- except CODE (494) USA version
- as of model year 09

Function requirements, general
^ Circuit 15 On
^ Right mirror adjustment selected on right outside mirror adjustment selection switch (S20/1s11)
^ Function in instrument cluster (A1) activated
^ Position measurement supplies valid readings
^ No overvoltage or undervoltage
^ Manual mirror adjustment not active

The status of circuit 15 is transmitted by the EIS [EZS] control unit (N73) to the interior CAN.

Function sequence for park position of passenger side outside mirror, general
To monitor the curb while backing up, a park position of the right electrically adjustable and heated outside mirror (M21/2) can be stored and actuated automatically.

The passenger side outside mirror park position comprises the following subfunctions:
^ Store park position function sequence
^ Actuate park position function sequence
^ Move to drive position function sequence

Store park position function sequence
The momentary adjustment of the right outside mirror can be stored as park position.
For this purpose first actuate memory switch (S91s9) for t > 40 ms and then release. Then actuate any switch on the driver power window and outside mirror adjustment power window switch (S20/1) within t < 3 s in any direction.
The status of the memory switch is read in by the driver front seat adjustment control unit with memory (N32/1), which transmits the signal to the left front door control unit (N69/1) via the interior CAN.
The driver switch group is read in by the left front door control unit, which transmits the memory request to the right front door control unit (N69/2) via the interior CAN. The right door control unit stores the adjustment of the right outside mirror as park position.

Additional function requirements for moving to park position
^ Vehicle speed v < 10 km/h
^ Manual mirror adjustment not active

The vehicle speed signal is transmitted by the instrument cluster via the interior CAN.

Actuate park position function sequence
If the right front door control unit receives the message "Reverse gear engaged" via the interior CAN by the central gateway control unit (N93), the right outside mirror is moved to the stored park position.
For this purpose the mirror adjustment up/down motor (M21/2m1) and the mirror adjustment in/out motor (M21/2m2) are actuated by the right front door control unit.

A manual adjustment of the right outside mirror in the park position is stored as a new park position.

Move to drive position function sequence
The right outside mirror is automatically returned to the original position, when:
- another gear range was engaged and a time of approx. t = 10 s has elapsed or
- the vehicle speed is v > 10 km/h or
- the left outside mirror adjustment selection switch (S20/1s10) is actuated or
- when c. 15 is switched back on and the reverse gear is not recognized for at least t > 0.6 s.

The original drive position is resumed, even when the right outside mirror has been moved to the park position manually.