GF72.29-P-3013GZ Power Window Raising/Lowering, Function

GF72.29-P-3013GZ Power Window Raising/Lowering, Function
- 164.1/8 up to Model Year 8

Component Identification:

Function requirements
- Circuit 15 ON or circuit 15R ON
- No overvoltage or undervoltage
- Not active for rear power window child safety lock switch
- For automatic raising or lowering additionally normalized power windows.

Up to 5 min. after circuit 15R or circuit 15 OFF, the power window can be actuated if the front doors are not open.

Driver control point
All windows in the front and rear doors and vent windows (model 164.8) can be opened or closed from the driver power window and outside mirror adjustment switch group.

Press corresponding switch on driver power window switch group to catch point in the opening or closing direction for manual raising or lowering.

Momentarily press corresponding switch on driver power window and outside mirror adjustment switch group to catch point in the opening or closing direction for automatic raising or lowering.
Actuation is performed until the position recognition detects that the windows are opened or closed.

Actuation of the driver power window and outside mirror adjustment switch group is read in by the left front door control unit via the LIN BUS and the corresponding message is relayed to the right front door control unit and the front SAM control unit via CAN BUS.

Both door control units then actuate the left front power window motor and right front power window motor.The front SAM control unit actuates the left rear power window and right rear power window motor as well as the left and right vent window motors on model 164.8.

Passenger control points and rear control points
Only the associated window can be opened or closed by the passenger power window switch or the rear power window switch. Press passenger power window switch or corresponding rear power window switch in the opening or closing direction for manual raising or lowering.

Momentarily actuate passenger power window switch or corresponding rear power window switch beyond the catch point in the opening or closing direction for automatic raising or lowering until the position recognition detects complete opening or closing the window

Actuation of the front passenger power window switch or the corresponding rear power window switch is read in voltage-coded by the left front door control unit and front SAM control unit which directly actuates the corresponding power window motor

Function abort
- If the corresponding operating switch is actuated again
- I the excess force limiter is actuated during automatic raising
- If function prerequisites are not fulfilled
- Recognition of Hall sensor defective
- Release corresponding vent window switch

The excess force limiter on the side windows is only active during automatic raising.The excess force limiter of the vent windows is realized via the left/right vent window obstruction sensor strips.

On vehicles with electrically heated left and right rear seats, code 872, the rear power window switch as well as the driver power window switch group are read in by the switching bus

Child safety lock function
The function of the rear control points can be disabled with the child safety lock switch located in the driver power window and outside mirror adjustment switch group. Already performed actions are interrupted immediately by the rear power window switch when the child safety lock is activated The current status is recognized by the child safety lock indicator lamp and the current position of the child safety lock switch in the driver power and outside mirror adjustment switch group.

Vent window play protection
If the vent window motor is actuated more than 10 times after switching on the ignition, the play protection is activated.However, the vent windows can still be closed.

Sequence of priority
The driver power window and outside mirror adjustment switch group has the master function.An adjustment request via the front passenger control point or rear control points is interrupted by a corresponding actuation of the driver power and outside mirror adjustment switch group.