Rear door control unit, component description - GF72.29-P-6021CW

MODEL 204.0/2 up to Model Year 8

Shown on model 204.0

Location

The rear door control units are located behind the corresponding door lining.

Fig 1: Identifying Left/Right Rear Door Control Unit

Courtesy of MERCEDES-BENZ USA

Task

The rear door control units read in the following sensors and switches, actuates their function and instrument illumination and switch subsequent loads via semiconductor switches The rear door control units are connected to the interior CAN to exchange data.

Left rear door control unit

Discrete inputs

Circuit 30
Circuit 31
Left rear power window switch (S21/3)
Hall sensor for left rear door power window motor (M10/5)

Discrete outputs

Left rear door power window motor
Switch and control illumination (circuit 58d) for left rear power window switch
Left rear door exit and warning lamp (E17/5) (with code (854) Avantgarde or code (955) Elegance)
Left rear door handle illumination (E17/13) (with code (854) Avantgarde or code (955) Elegance)
Left rear door lock (A85/3) (only )

Right rear door control unit

Discrete inputs

Circuit 30
Circuit 31
Right rear power window switch (S21/4)
Hall sensor for right rear door power window motor (M10/6)

Discrete outputs

Right rear door power window motor
Switch and control illumination (circuit 58d) for right rear power window switch
Right rear door exit and warning lamp (E17/6) (with code (854) Avantgarde or code (955) Elegance)
Right rear door handle illumination (E17/14) (with code (854) Avantgarde or code (955) Elegance)
Right rear door lock (A85/4) (only )