GF72.29-P-3014GZ Power Window Excess Force Limiter, Function

GF72.29-P-3014GZ Power window excess force limiter, function
- 164.1/8 up to Model Year 8

Excess force limiter (indirect obstruction sensor)

Function requirements
- Windows normalized
- Function in range of 230 mm to approx. 3 mm of window opening
- The switches for the power window are in the rest position.

Function
If the left front door control unit (N69/1), right front door control unit (N69/2) and front SAM control unit (N10) recognize pinching while automatically raising a window, the drive is reversed and the window opens approx. 70 mm.

An excess force limiter for the vent window (model 164.8) is realized via the left vent window obstruction sensor strip (B51/5) and right vent window obstruction sensor strip (B51/6) which is read in directly by the rear SAM control unit (N10/8). When pinching is recognized, the corresponding vent window reverses direction and is automatically and completely opened.
The vent window drive is not normalized or denormalized.

If a request is received by the front left power window motor (M10/3) for another automatic closing operation within 5 t 10 s, this operation is performed without obstruction sensor.

Adaptive excess force limiter for power window

Function requirements
- Windows normalized
- Function in range of 230 mm to approx. 3 mm of window opening

Function
The adaptive excess force limiter serves for recognition of sluggishness when the window rolls up and takes this into consideration the next time it is actuated.The adapted values are not erased by normalization nor by voltage loss.