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




GF72.29-P-6001FQ Left Front Door Control Unit, Component Description
MODEL 218





N69/1 Left front door control unit

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 signals
^ Evaluation of input factors
^ Actuation of components

Reading in of signals
The input factors are read in via the following connections:
^ Direct line
^ Left front 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)
- Horizontal inclination adjustment potentiometer (M21/1r2) (with code (275) Electrically adjustable front seats memory package)
- Potentiometer for horizontal inclination adjustment (M21/1r3 ) (with code (275) Electrically adjustable front seats memory package)
- Remote trunk lid release button (S15/1) (model 218.3 without code (881) Remote trunk closing (RTC))
- Driver trunk lid/liftgate control button (S15/3) (model 218.3 with code (881) Remote trunk closing (RTC) or model 218.9)
- Left front door central locking inside door handle switch (S85/5):
- Central locking open switch (S85/5s1)
- Close central locking switch (S85/5s2)

Left front door LIN
The signals from the following components are read in via the left front 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 interior rearview mirror and outside mirror, including folding outside mirror, and without code (494) USA version)
- 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 package with electrically adjustable front seats):
- 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)

The left front door control unit supplies the connected control elements with c. 58d

Interior CAN
The signals are read in by the left front door control unit via the interior CAN.
The functions that use these signals are described in the individual 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 affected components are then actuated.

Actuation of components
The actuation of the components takes place via the following connections:
^ Direct line
^ Left front door LIN
^ Interior CAN

Direct line
The following components are actuated via a direct line:
- Left front door central locking motor (A85m1)
- Additional door lock actuator motor for left front door (A85m4) (with code (885) Increased theft protection)
- Left front door exit and warning lamp (E17/3)
- Left front door handle illumination (E17/11)
- Left front door ambient illumination (E17/43) (with code (877) Ambiance illumination)
- Left front door power window motor (M10/3)
- Left outside mirror (M21/1):
- Left outside mirror ambient lam (M21/1e1)
- Left blind spot assist warning lamp (M21/1e2) (with code (234) Blind spot assist or code (237) Active blind spot assist)
- Mirror dimming (M21/1h1) (with code (249) Automatically dimming interior rearview mirror and outside mirror including folding outside mirror and without code (494) USA version or code (249) Automatically dimming interior rearview mirror and outside mirror (driver) and code (494) USA version or with code (498) Japan version)
- Vertical inclination adjustment actuator motor (M21/1m1)
- Horizontal inclination adjustment actuator motor (M21/1m2)
- Outside mirror fold-in/out electric motor (M21/1m3) (with code (249) Automatically dimming interior rearview mirror and outside mirror, including folding outside mirror, and without code (494) USA version or with code (498) Japan version)
- Mirror heater (M21/1r1)
- Left outside mirror turn signal lamp (E6/5)

Left front door LIN
The left front door control unit transmits the following signals via the left front door LIN:
- Status indication for selecting left outside mirror adjustment switch or right outside mirror adjustment switch

Interior CAN
The signals are transmitted by the left front door control unit via the interior CAN.
The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).