Passenger-side front door control unit, component description - GF72.29-P-6010SC

MODEL 216.3 up to Model Year 8

Location

The right door control unit is located on the rear door module behind the door trim.

Fig 1: Locating Right Door Control Module

Courtesy of MERCEDES-BENZ USA

General

The right door control unit is connected to the interior CAN for data exchange.

Task

The right door control unit reads in the following sensors and switches, actuates their function and switch and controls illumination, if applicable, and switches the following loads via semi-conductor switches.

Actuation of loads via semi-conductor switches

Right CL motor (A85/1m1)
Right power closing motor (A85/1m3)
Right additional door lock motor (A85/1m4) (only)
Right outside mirror turn signal lamp (E6/6)
Right door entrance/exit lamp (E17/4)
Right door inside handle illumination (E17/12)
(with code (876) Interior lights package)
Right door trim strip illumination (E17/44)
(with code (876) Interior lights package)
Right front power window motor (M10/4)
Right outside mirror ambient lamp (M21/2e1)
Automatic dimming mirror (M21/2h1)
Mirror up/down adjustment motor (M21/2m1)
Mirror in/out adjustment motor (M21/2m2)
Mirror fold-in motor (M21/2m3)
Mirror heater (M21/2r1)

Discrete inputs

Circuit 30
Circuit 30g
Circuit 31
Right rotary tumbler switch (A85/1s1)
Right drive lock pawl switch (A85/1s2)
Right safety limit switch (A85/1s3)
Mirror up/down adjustment potentiometer (M21/2r2)
Mirror in/out adjustment potentiometer (M21/2r3)
Front passenger power window switch (S21/2)
Hall sensors for right front power window motor

Read in following switches via front door LIN

Right front seat operation switch group (S23)
Right interior CL switch (S85/6)

Thermal protection for right front power window motor

The right front door control unit calculates the actuation duration, operating voltage, RPM of the right front power window motor as well as the outside and inside temperature at the bearing points on the right front power window motor to protect the right front power window motor.

When a temperature of T = 85°C is reached, the right front power window motor is actuated only as long as the request is present or the end position is reached.

During automatic raising it is still possible to reverse directions when the overload protection force limitation is actuated. It is possible to reactuate the right front power window motor after a cooling phase calculated by the right front door control unit.