W80.45>1095>79
Vehicle comfort opening/closing Shown on vehicles with code (F8C) Multifunction and remote control key
1 Convenience closing/opening with transmitter key
2 Comfort closing/opening via transmitter key on door lock cylinder (shown on driver door)
3 Comfort closing/opening request via passenger door lock switch
4 Comfort closing/opening power window/sliding roof request from driver door module
5 Power window motor actuation for closing/opening
6 Sliding roof/pop>up roof motor actuation for opening/closing
CAN 1 Exterior>CAN CAN 2 Interior CAN CAN 3 Frame CAN
E1e1 Left side turn signal light E2e1 Right side turn signal light E3e4 Left turn signal lamp E4e4 Right turn signal lamp E5e4 Left turn signal lamp E6e4 Right turn signal lamp LIN 6 LIN SCA/SCH redundance M3 Driver door power window motor M4 Front passenger door power
window motor
M7 Driver door central locking motor M8 Front passenger door central
locking motor A1 Instrument cluster (ICUC) control
unit
A1H2 Turn signal light indicator lamp, left side of vehicle
A1h4 Turn signal light indicator lamp, right side of vehicle
A2 Central gateway control unit (CGW)
A7 Cab signal acquisition and actuation module control unit (SCA)
A8 Frame signal acquisition and actuation module control unit (SCH)
A16 Driver door module (DCMD) control unit
A17 Front passenger door module (DCMP) control unit
B50 Center speaker
M12 Sliding roof motor (with code (D8M) Sliding roof)
M12a Pop>up roof motor (with code(D8N) Electric pop>up roof)
S1 Electronic ignition lock (EIS)
a Lock position b Unlock position c Door lock d Door handle S953 Transmitter key W15 Multifunction antenna
Z1 Cab instrument panel CAN bus star point
1 General
The comfort locking system is an expanded version of the central locking system. The comfort locking system is not an autonomous accessory; it can only be ordered in combination with code (F8B) 2 remote control keys or with code (F8C) Multifunction and remote control key. The driver door control unit (DCMD) (A16) is the master function for the control of the comfort closing system. Comfort closing or openings includes centrally closing or opening the power windows or the sliding roof (on vehicles with code (D8M) Sliding roof) or pop>up roof (on vehicles with code (D8N) Electric pop>up roof) when locking or unlocking the vehicle. Comfort closing/opening can be actuated via the radio remote control in the transmitter key (S953) or with the key on the door lock (c) (lock cylinder) via the door handle (c) on the driver and front passenger door.
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The window lifters on vehicles with comfort locking system are also equipped with anti>pinch protection. During comfort closing/opening the turn signals are actuated in parallel for visual indication after locking or unlocking the vehicle.
Prerequisites, general
f No on>board electrical system limp>home mode f Central locking operating properly
f Driver door and passenger door closed. f Circuit 15 R and circuit 15 (ignition) OFF f Power windows learned in (normalized)
f Tilting/sliding roof learned in (normalized) (vehicles with code (D8M) Sliding roof)
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2 Vehicle comfort opening/closing with transmitter key (S953) 2.1 Vehicle comfort opening/closing with transmitter key (S953)
general
If the lock/unlock button the radio remote control of the transmitter key (S953) is pressed, the transmitter key (S953) transmits radio signals. The radio signals from the transmitter key (S953) are received by the electronic ignition lock (EIS) (S1) via the antenna (EIS) (W1) (with code (F8B) 2 remote control keys) or combination antenna (W15) (with code (F8C) Multifunction and remote control key). The access authorization in the radio signal of the transmitter key (S953) is checked by the electronic ignition lock (EIS) (S1).
If the access authorization is valid and the vehicle is unlocked, the request from the transmitter key (S953) is transmitted in the message "Request for radio remote control, global unlocking" or "Request for radio remote control, selective unlocking" to the interior CAN (CAN 2). When the vehicle is locked, the message "Request for radio remote control, global unlocking" is transmitted to the interior CAN (CAN 2).
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The electronic ignition lock (EIS) (S1) then transmits the request from the transmitter key (S953) to the interior CAN (CAN 2). Then the driver door control unit (DCMD) (A16) actuates locking and unlocking via the interior CAN
(CAN 2). If the lock or unlock button on the radio remote control on transmitter key (S953) is pressed for longer than 2 s, the electronic ignition lock (EIS) (S1) additionally starts the comfort opening or comfort closing function to lock or unlock. i If the message "Request for radio remote control, global unlocking" or "Request for radio remote control, selective unlocking" is transmitted by the electronic ignition lock (EIS) (S1) to the interior CAN (CAN 2), depends on whether "global unlocking" or "selective unlocking" (only unlock driver door) is set on the transmitter key (S953).
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The transmitter key (S953) can be readjusted by simultaneously pressing
the unlock or lock button for longer than 5 s. It is necessary to hold the release button the transmitter key (S953) during the entire opening procedure during comfort opening. When the release button is released, comfort opening is interrupted immediately.
2.1.1 Comfort opening for vehicles via transmitter key (S953)
If the signals from the transmitter key (S953) are received for longer than 2 s when unlocking, the electronic ignition lock (EIS) (S1) transmits the message "Request for radio remote control comfort opening" to the interior CAN (CAN 2). The driver door control unit (DCMD) (A16) and passenger door module control unit (DCMP) (A17) are woken up by the activities on the interior CAN (CAN 2) and receive the message "Request for radio remote control comfort opening".
Then, in addition to unlocking the driver door, is opened by the driver door control unit (DCMD) (A16) when the driver door power window motor (M3) is actuated.
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Simultaneously the driver door control unit (DCMD) (A16) transmits the request "Passenger side power window comfort opening" to the interior CAN (CAN 2).
The passenger door module control unit (DCMP) (A17) then unlocks the passenger door side window by actuating the front passenger door power window motor (M4).
Simultaneously, to open the side windows, the driver door control unit (DCMD) (A16) transmits the request "Open sliding roof" via the interior CAN (CAN 2) to the cab signal acquisition and actuation module control unit (SCA) (A7). The cab signal acquisition and actuation module control unit (SCA) (A7) then actuates the sliding roof motor (M12) (with code (D8M) Sliding roof) or pop>up roof motor (M12a) (with code (D8N) Electric pop> up roof) to pop up. If the sliding roof or pop>up roof is popped up, this is recognized by the cab signal acquisition and actuation module control unit (SCA) (A7) via a Hall sensor in the sliding roof motor (M12) or power consumption of the pop>up roof motor (M12a) which transmits the message "Sliding roof status popped up" to the interior CAN (CAN 2).
The passenger door module control unit (DCMP) (A17) recognizes the position of the side window in the front passenger door power window motor (M4) via a Hall sensor and terminates the actuation automatically as soon as the side window is open. If the side window is open, the passenger door module control unit (DCMP) (A17) transmits the message "Status of passenger side power window completely opened" to the interior CAN (CAN 2). The driver door control unit (DCMD) (A16) also recognizes via a Hall sensor in the driver door power window motor (M3) the position of the side window and completes the actuation automatically as soon as the side window is open. During this entire operation, the driver door control unit (DCMD) (A16) transmits the message "Comfort closing system active" to other control units for further processing to the interior CAN (CAN 2). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
If the driver door control unit (DCMD) (A16) receives the messages "Status of front passenger side power window completely open" and "Sliding roof status popped up", receives the message "Comfort closing system active" from the interior CAN (CAN 2). After unlocking successfully and during comfort opening, the driver door control unit (DCMD) (A16) transmits the message "Vehicle unlocked" to the interior CAN (CAN 2). Unlocking is acknowledged visually by the turn signal flashing once.
Parallel to the unlocking procedure, the cab signal acquisition and actuation module control unit (SCA) (A7) switches on the left interior lights (E31e1) and the right interior light (E32e1) for approx. 30 s (parameterizable). The maximum actuation time is 5 minutes.
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2.1.2 Comfort closing for vehicle via transmitter key (S953)
If the signals from the transmitter key (S953) are received for longer than 2 s when locking, the electronic ignition lock (EIS) (S1) transmits the message "Request for radio remote control comfort closing" to the interior CAN (CAN 2). The remaining procedure for comfort closing via the transmitter key (S953) corresponds in the broadest sense to comfort opening via the transmitter key (S953), only the lock button the transmitter key (S953) however, it is not necessary to hold down to the lock button on the transmitter key for the entire comfort closing operation. For this reason the side windows and tilting/sliding roof with code (D8M) Sliding roof or pop>up roof with code (D8N) Electric pop>up roof or the electric pop>up roof with code are closed automatically. The message "Front passenger side power window comfort closing" is transmitted by the driver door control unit (DCMD) (A16) to the interior CAN (CAN 2) instead of the message "Front passenger power window comfort opening". The message "Close sliding roof" is transmitted by the driver door control unit (DCMD) (A16) to the interior CAN (CAN 2) instead of "Open sliding roof". >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
The power windows and the tilting/sliding roof (with code (D8M) Sliding roof) or the pop>up roof (with code (D8N) Electric pop>up roof), are closed rather than opened. After successfully locking the vehicle and during comfort closing, the driver door control unit (DCMD) (A16) transmits the message "Vehicle locked" to the interior CAN (CAN 2). It also transmits the request "Activate turn signal for locking" to the interior CAN (CAN 2) (vehicles without code (F8Z) Alarm system with interior protection). Locking is acknowledged visually by the turn signal flashing three times. i On vehicles with code (F8Z) Alarm system with interior protection, actuation of the turn signal for acknowledgment is actuated only after successful arming of the antitheft alarm system (ATA) by the antitheft alarm system control unit (ATA) (A6).
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3 Comfort opening/closing vehicle driver door lock 3.1 Comfort closing with vehicle key in driver door lock
If the vehicle key in the door lock (c) (lock cylinder) in the driver door is turned to the right stop to the locking position (a), the driver door central locking motor (M7) is actuated mechanically via a linkage and the driver door is locked. The locking operation is sensed by the driver door control unit (DCMD) (A16) via a driver door central locking motor switch (M7). When the vehicle key is held in the lock position for longer than 2 s, the driver door control unit (DCMD) (A16) starts the comfort closing operation in addition to the locking the vehicle. It is not necessary to hold the vehicle key in the locking position to continue the comfort closing function.
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The driver door control unit (DCMD) (A16) closes the side windows on the driver side by itself by actuating the driver door power window motor (M3). The driver door control unit (DCMD) (A16) also transmits the messages "Comfort closing system active" and "Driver door lock switch in locking position" to the interior CAN (CAN 2). Almost simultaneously it transmits the request "Front passenger power window comfort closing" and the request "Close sliding roof" to the interior CAN (CAN 2). The passenger door module control unit (DCMP) (A17) and cab signal acquisition and actuation module control unit (SCA) (A7) are woken up by activities on the interior CAN (CAN 2) and receive the
corresponding messages. The passenger door module control unit (DCMP) (A17) closes the front passenger door side window by actuating the front passenger door power window motor (M4) after receiving the request "Front passenger power window comfort closing".
Simultaneously for closing the side window with the comfort closing feature, the cab signal acquisition and actuation module control unit (SCA) (A7) receives the request "Close sliding roof" via the interior CAN (CAN 2) and then actuates the sliding roof motor (M12) (with code (D8M) Sliding roof) or pop>up roof motor (M12a) (with code (D8N) Electric pop>up roof) to close. Closing the tilting/sliding roof or pop>up roof is recognized by the cab signal acquisition and actuation module control unit (SCA) (A7) via the Hall sensor in the sliding roof motor (M12) (with code (D8M) Sliding roof) or power consumption of the pop>up roof motor (M12a) (with code (D8N) Electric pop>up roof) and transmits then the message "Sliding roof status completely closed" to the interior CAN (CAN 2). The passenger door module control unit (DCMP) (A17) recognizes the position of the side window in the front passenger door power window motor (M4) via a Hall sensor and terminates the actuation automatically as soon as the side window is closed.
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