GF72.29-P-4142RT Right Front Door Control Unit, Component Description

GF72.29-P-4142RT Right Front Door Control Unit, Component Description
- up to model year 08

Component Identification:

Location
The right front door control unit is located in the upper area of the right door inside.

Task
The right front door control unit is connected with the controller area network bus class B (interior compartment) (CAN-B) for exchanging data and has the following purposes:

Scans the following switches:
^ Front passenger power window switch (S21/2)

Reads in the following sensors:
^ Hall sensor for right front power window motor (M10/4)
^ Mirror up/down adjustment potentiometer (M21/2r2)
^ Mirror in/out adjustment potentiometer (M21/2r3)

Switches loads via internal semi-conductor switches:
^ Right outside mirror turn signal lamp (E6/6)
^ Right front door entrance/exit lamp (E17/4)
^ Right front door inside handle illumination (E17/12)
^ Right front power window motor (M10/4)
^ Right front door CL motor (M14/5)
^ Mirror up/down adjustment motor (M21/2m1)
^ Mirror in/out adjustment motor (M21/2m2)
^ Right outside mirror ambient lamp (M21/2e1)
^ Automatic dimming mirror (M21/2h1)
^ Mirror fold-in motor (M21/2m3)
^ Mirror heater (M21/2r1)
^ Front passenger power window switch illumination

The front passenger power window switch is read in by the right front door control unit via a LIN-BUS.

Purpose in connection with air conditioning system
The right front door control unit senses the window position of the right front vehicle door and stores this information on the interior compartment CAN bus.
The AAC control and operating unit (N22) or comfort AAC control and operating unit (N22/7) reads in the signal for the window position "Driver door ON" to achieve better standard quality in the open position.

Recirculated air convenience closing, purpose
When the air recirculation switch (N22s2 or N22/7s2) is pressed for longer than 1.5 s, the convenience closing function is activated. The right front door control unit stores the momentary window position and closes the window, if open, in the automatic function. When the convenience closing function is completed, the window is returned to the stored position when the air recirculation switch is pressed for longer than 1.5 s.