GF72.29-P-6001CE Left Front Door Control Unit, Component Description

GF72.29-P-6001CE Left Front Door Control Unit, Component Description
- as of model year 09

Component Identification:

Location
The left front door control unit is located on the door module behind the door lining.

Task
The left front door control unit has the following tasks:
^ Reading in of sensors, pickups and signals
^ Evaluation of input factors
^ Controlling functions
^ Actuation of components

Reading in of sensors, pickups and signals
The input factors are read in with the following connections:
^ Direct line
^ Left door LIN (LIN B5)
^ Interior CAN (CAN B)

Direct line
The signals from the following components are read via a direct line:
- Infrared remote control receiver, driver-side front door (A26/1)
- Left front door rotary tumbler switch (A85s1)
- Hall sensor for left front door power window motor (M10/3)
- In addition with code (275) Memory function (driver seat, steering column, outside mirrors):
- Vertical inclination adjustment potentiometer (M21/1r2)
- Horizontal inclination adjustment potentiometer (M21/1r3)
- Trunk lid release button (S15/1) (model 204.0) or liftgate release button ( S15/1) (model 204.0/9)
- Left front door central locking inside door handle switch (S85/5) with following components:
- Open central locking switch (S85/5s1)
- Close central locking switch (S85/5s2)

Left door LIN
The signals for the following components are read in via the left door LIN:
- Driver-side power window and outside mirror adjustment switch group (S20):
- Left front power window switch (S20s1)
- Right front power window switch (S20s2)
- Left rear power window switch (S20s3)
- Right rear power window switch (S20s4)
- Rear side window child safety lock switch (S20s5)
- Outside mirror fold-in/out switch (S20s9) (with code (249) Automatically dimming inside rearview mirror and outside mirror (driver))
- Left outside mirror adjustment switch (S20s10)
- Right outside mirror adjustment switch (S20s11)
- Outside mirror adjustment switch (S20s12)

- Left front seat adjustment switch group (S22) (with code (275) Memory function (driver seat, steering column, outside mirror)):
- Left front head restraint adjustment switch (S22s1)
- Left front seat inclination adjustment switch (S22s2)
- Left front seat fore/aft adjustment switch (S22s3)
- Left front seat height adjustment switch (S22s4)
- Left front seat backrest adjustment switch (S22s5)
- Left front memory function switch (S22s6)
- Left front memory 1 switch (S22s7)
- Left front memory 2 switch (S22s8)
- Left front memory 3 switch (S22s9)

Interior CAN
The signals are read in by the left front door control unit via the interior CAN.
The functions resulting therefrom are described in the corresponding function descriptions (see block diagram or function schematic).

Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.

Controlling functions
The left front door control unit controls the following functions:
- Manual and automatic opening and closing of side windows
- Automatic closing of side windows with PRE-SAFE (with code (299) PRE-SAFE)
- Convenience feature for power windows
- Excess force limiter for manual and automatic closing of side windows
- Automatic opening of side windows after airbag deployment
- Adjustment of outside mirror

Actuation of components
Components are actuated with the following lines:
^ Direct line
^ Left door LIN

Direct line
The following components are actuated via a direct line:
- Left front door central locking motor (A85m1)
- Left front door additional door lock actuator motor (A85m4) (on model 204.0/2 without code (833) Great Britain version)
- Left outside mirror turn signal lamp (E6/5)
- In addition with code (954) Avantgarde or code (955) Elegance:
- Left front door exit and warning lamp (E17/3)
- Left front door handle illumination (E17/11)
- Left front door power window motor

- Left outside mirror (M21/1) with following components:
- Automatic mirror dimming (M21/1h1) (with code (249) Automatically dimming inside rearview mirror and outside mirror (driver))
- Vertical inclination adjustment actuator motor (M21/1m1)
- Horizontal inclination adjustment actuator motor (M21/1m2)
- Electric outside mirror fold-in/out motor (M21/1m3) (with code (249) Automatic dimming outside mirror including folding outside mirror)
- Mirror heater (M21/1r1)

Left door LIN
The left front door control unit supplies the connected control elements with c. 58d (symbol illumination) via left door LIN: