Left front door control unit, task - GF72.29-P-4105-03PP

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The following description refers to left-hand drive vehicles. The specifications are analog for right-hand drive vehicles.

The left front door control unit (N69/1) has the following purpose:

Scanning the following switches:

Driver power window switch group (S20/1)
Left front door ESA [ESV] switch group (with memory) (S91/2) (on left-hand drive vehicles with code (275) Electrically adjustable driver seat, steering column and outside mirrors with memory)

Reading the following sensors:

Left front IR receiver (A26/1)
Hall sensor signals for left front power window motor (M10/3)
Hall sensor signals for left electrically adjustable and heated outside mirror (M21/1)

Switching loads via semiconductor switches:

Left front power window motor (M10/3)
Left front door CL [ZV] motor (M14/6)
Mirror up/down adjustment motor (M21/1m1)
Mirror in/out adjustment motor (M21/1m2)
Mirror fold-in motor (M21/1m3) (with code (500) Folding left/right outside mirrors)
Mirror heater (M21/1r1)
Automatic dimming mirror (M21/1h1) (for code (249) Automatically dimming inside rearview mirror and outside mirror (driver))
Left outside mirror turn signal lamp (E6/5)
Left front door entrance/exit lamp (E17/3) (only model 203.0/2)
Switch and controls illumination for all switches connected

The left front door control unit (N69/1) is connected with the Controller Area Network bus, class B (interior compartment) (CAN B) to exchange data.