GF80.45-P-0003LE Convenience Feature (CF), Function

GF80.45-P-0003LE Convenience Feature (CF), Function

General function requirements
^ General function requirements Tilting/sliding roof power window (with code (414) Electric glass tilting/sliding roof) or panoramic sliding roof (with code (413) Panoramic glass sunroof with top sliding sunroof) normalized

Convenience feature (CF), general
The side windows, the tilting/sliding roof or the panoramic sliding roof and the rear roller sun blinds (with code (297) Roller sun blind in rear doors) can be opened and closed centrally with the CF function.

On vehicles with code (401) Front comfort seats, including seat heating and seat ventilation, the seat ventilation in the driver seat is switched to stage 3 during convenience opening.

The convenience feature comprises the following partial functions:
^ Function sequence for convenience feature via transmitter key (A8/1)
^ Function sequence for convenience feature via air recirculation function (without code (494) USA version)
^ Function sequence for convenience feature via Keyless-Go (with code (889) Keyless-Go)

Additional function prerequisites for convenience feature via transmitter key
^ C. 15C OFF
^ Doors closed

Function sequence for convenience feature via transmitter key
When the "Lock" or "Unlock" button the transmitter key is actuated for a longer period of time, it transmits a signal to the driver door infrared sensor (B58) via the interior CAN (precise aiming required). This signal is read in by the left front door control unit (N69/1) and transmitted to the EIS control unit (N73) via the interior CAN. The EIS control unit checks the access authorization of the transmitter key and enables the requested function.

After enabling, the left front door control unit transmits the "open" or "close" signal to the following control units via the interior CAN according to the request.
- Right front door control unit (N69/2)
- Left rear door control unit (N69/3)
- Right rear door control unit (N69/4)
- Overhead control panel control unit (N70)
- Panoramic sliding roof control module (A98) (with code (413) Panoramic glass sunroof with top sliding sunroof)
- Left front seat control unit (N32/1) (with code (401) Front comfort seats incl. seat heating and seat ventilation)

The left front door control unit actuates the left front power window motor (M10/3), the right front door control unit actuates the right front power window motor (M10/4), the left rear door control unit actuates the left rear power window motor (M10/5) and left rear side roller sun blind motor (M24/5) (with code (297) Roller sun blind in rear doors) and right rear door control unit the right rear power window motor (M10/6) and right rear side roller sun blind motor (M24/6) (with code (297) Roller sun blind in rear doors to open and close the side windows and the rear roller side sun blinds according to the request.

On vehicles with code (414) Electric glass tilting/sliding roof the overhead control panel control unit actuates the roof system drive unit (M12) to open or close the tilting/sliding roof according to the request.
On vehicles with code (413) Panoramic glass sunroof with top sliding roof, the panoramic sliding roof control unit actuates the integrated panoramic sliding roof motor (A98m1), the front roller sun blind motor (M54) and rear roller sun blind motor (M54/1) to close or open the panoramic sliding roof and the roller sun blind according to the request.
On vehicles with code (401) Front comfort seats incl. seat heating and seat ventilation, the left front seat control unit (N29/5) actuates the left front seat cushion ventilation motor group (M18/9) and the left front seat backrest ventilation motor group (M18/10) via the left front seat ventilation blower regulator to switch on the seat ventilation for the drive seat to stage 3.

On vehicles with panoramic sliding roof and rear side roller sun blinds on the rear doors, the roller sun blinds and rear side roller sun blinds are opened first during comfort opening. The side and the panoramic sliding roof are opened only after a new request. During comfort closing, the roller sun blinds and the rear side roller sun blinds are actuated only the side windows, the panoramic sliding roof are completely closed and new request is present.

Additional function requirements for convenience feature via air recirculation button
^ Circuit 15 On

Function sequence for convenience feature via air recirculation function
Comfort opening or closing is requested by the air recirculation switch (N72/1s37). he status of the air recirculation switch is read in by the upper control panel control unit (N72/1) and transmitted to the AAC control unit (N22/1) via the interior CAN. The AAC control unit then transmits the request to the following control units via the interior CAN:
- Door control module front left
- Door control module front right
- Door control module rear left
- Door control module rear right
- Overhead control panel control unit
- Panoramic sliding roof control module
- Left front seat control unit

The left front door control unit actuates the left front power window motor, the right front door control unit actuates the right front power window motor, the left rear door control unit actuates the left rear power window motor and left rear side roller sun blind and the right rear door control unit actuates the right rear power window motor and right rear roller sun blind motor to open and close the side windows and the rear roller sun blinds according to the request.
The overhead control panel control unit actuates the roof system drive unit to open or close the tilting/sliding roof according to the request.
The panoramic sliding roof control unit actuates the integrated panoramic sliding roof motor, the front roller sun blind motor and rear roller sun blind motor, to open or close the panoramic sliding roof and the roller sun blinds according to the request.

The convenience feature is stopped when the air recirculation button is actuated again.

When closing with the air recirculation button, the current positions of the side windows, tilting/sliding roof or panoramic roof are stored.
The next time the air recirculation button is pressed the windows are moved to the previously stored positions..

On vehicles with panoramic sliding roof and rear side roller sun blinds in the rear doors, the roller sun blinds and rear side roller sun blinds are opened first during comfort opening. The side and the panoramic sliding roof are opened only after a new request.

During comfort closing, the roller sun blinds and rear roller sun blinds are actuated only after the side windows, the panoramic sliding roof are completely closed and a new request is present.

Additional function requirements for convenience feature via KEYLESS-GO
^ Circuit 15 Off
^ A transmitter key is located outside of the vehicle and an in the vicinity (s = 1 m) of the actuated left front comfort sensor (B67/1b1), right front comfort sensor (B67/2b1), left rear comfort sensor (B67/3b1) or right rear comfort sensor (B67/4b1)
^ Doors closed and vehicle locked
^ Touching comfort sensor on outside of door handle for t > 1,5 s

A request to determine the position of the transmitter key is transmitted to the KEYLESS-GO trunk antenna (A2/35), left rear door KEYLESS-GO antenna (A2/39) and right rear door KEYLESS GO antenna (A2/41). The transmitter key then transmits its position to the rear window antenna amplifier module (A2/12) which is read in by the KEYLESS-GO control unit (N69/5).

Function sequence for convenience feature via Keyless-Go
When touching the comfort sensor, it transmits a signal to the KEYLESS-GO control unit. The KEYLESS-GO control unit transmits the signal "Comfort closing" to the following control units via the interior CAN:
- Door control module front left
- Door control module front right
- Door control module rear left
- Door control module rear right
- Overhead control panel control unit
- Panoramic sliding roof control module

The left front door control unit actuates the left front power window motor, the right front door control unit actuates the right front power window motor, the left rear door control unit actuates the left rear power window motor and the left rear side window roller sun blind motor and the right rear door control unit actuates the right rear power window motor and right rear roller sun blind motor to close the side windows and the rear side roller sun blinds.
The overhead control panel control unit actuates the roof system drive unit to close the tilting/sliding roof.
The panoramic sliding roof control unit actuates the integrated panoramic sliding roof motor, the front roller sun blind motor and rear roller sun blind motor to close the panoramic sliding roof and the roller sun blinds.

During comfort closing, the roller sun blinds and the rear roller sun blinds are actuated only after the side windows, the panoramic sliding roof or the tilting/sliding roof are completely closed and a new request is present.

Convenience closing is interrupted in the following cases:
- when another comfort sensor is touched,
- when the comfort sensor is no longer touched,
- After max. t = 90 s
- If another central locking command is present

The convenience function is a manual closing function, i.e. the comfort sensor must be touched during the entire closing procedure; when the sensor is released, the procedure is stopped.
If during comfort closed or max. t = 2 s after the same KEYLESS-GO door handle is pulled, the emergency opening function is activated. In this case, the side windows, the tilting/sliding roof or the panoramic sliding roof are actuated in the opening direction. Actuation is performed for min. t = 2 s or as long as the KEYLESS-GO door handle is pulled, max. t = 90 s.