125000425 - 7005M FRONT ELECTRIC WINDOWS

DRIVER''S DOOR NODE (NPG)

COMPOSITION

The driver''s door node (NPG) houses the following controls:

1 - Door mirror positioning knob2 - L driver''s side R passenger side electric mirror selector3 - L window control button4 - R window control button5 - Panel

OPERATION

The Driver''s Door Node performs the following functions:

supports the functions described in the table;
receives and sends information on the B-CAN line (e.g. diagnosis, warning lights, commands, data);
interconnects with the driver''s front door wiring

N.	Operation	Mode
F3	power supply from key 2 discharge relay	D
F40	download +15 signal	C
F89	front puddle light shared power supply and timer L/R	C, D
F91	download front door open signal	C
F99	download boot opening signal from remote control or from switch in dashboard	C, D
F104	download front window opening buttons signal and motor power supply with manual and automatic up/down	C, D
F111	download front window closure signal from remote control and implement raise	C, D
F112	download front window closure signal from rain sensor	C, D
F119	manage door mirror deflector adjustment	D
F181	transmit outdoor temperature signal for climate control function	C
F192	download signal from outdoor temperature sensor and send value for display	C

Procedure for communication of subfunctions carried out by nodes is: C= via CAN; D = direct communication.

Rear view of connectors.

A - H44A 16 wayB - H44B 26 way

Pin-out

CONNECTOR A

Pin	Operation
1	Control passenger side window from passenger side button
2	n.c.
3	n.c.
4	Outdoor temperature sensor (S)
5	Outdoor temperature sensor (-)
6	Tail-gate release electromagnet relay positive control
7	Spare earth
8	n.c.
9	n.c.
10	B-CAN B
11	B-CAN A
12	n.c.
13	n.c.
14	n.c.
15	n.c.
16	n.c.

CONNECTOR B

Pin	Operation
1	Window guide lift motor control
2	Window guide lower motor control
3	Boot release control negative signal from button in dashboard
4	n.c.
5	n.c.
6	Passenger side electric mirror
7	Passenger side L/R mirror actuation
8	Passenger side high/low mirror actuation
9	Shared - driver''s electric mirror
10	Driver''s side L/R mirror actuation
11	n.c.
12	Passenger window motor control lift
13	Passenger window motor control lower
14	Power supply for services on driver''s door from F-47
15	Driver''s side power earth
16	n.c.
17	n.c.
18	Earth for driver''s puddle light
19	Driver''s side puddle light timed power source positive (connection with SB20)
20	Passenger side puddle lightt timed power source positive (connection with SB19)
21	Driver''s electric mirror demister earth
22	n.c.
23	Driver''s side high/low mirror actuation
24	+30 from F-39 (electronic, puddle lights, boot release relay driver, door release)
25	Power supply for services on passenger door from F-48
26	Passenger side power earth

WINDOW OPENING CONTROL UNIT

COMPOSITION

One specific window opening control unit for each door ensures the operation of the driver''s side and passenger side window opening motors.

The electronic unit manages the following functions:

Single front window opening control;
Receipt of window opening button up-down signals from Door Node;
Central window opening and closing (with signals received from Door Node);
Window anti-crush safety function via Hall effect sensors;
Short-drop function on door opening.

The up/down commands do reach reach the window opening control unit directly but via the control unit on the door which retransmits them.

Short drop

Given the particular shape of the door (no upper frame), the correct seal of the door housing is ensures by ''raising'' the glass in the seal with the door closed.

For this reason the control unit manages the short drop function.

when the door is opened the glass, which is in the upper end of travel position, is lowered by about 4 mm;
when the door is closed, the glass is completely closed; if there is a control to close the glass with the door open, the travel of the glass stops about 4 mm before the upper end of travel position; and is only completed when the door is closed.

Connections

Control unit pin-out

Connector A

Pin	Signal
1	n.c.
2	Direct supply
3	UP window motor supply output
4	n.c.
5	n.c.
6	n.c.
7	Direct supply
8	DOWN window motor supply output
9	Earth
10	Earth
11	Hall sensors earth
12	Hall sensors supply

Connector B

Pin	Signal
1	Earth
2	Supply controlled by the ignition
3	Hall B sensor input
4	Hall A sensor input
5	n.c.
6	n.c.
7	UP window button input (activated to earth)
8	n.c.
9	n.c.
10	n.c.
11	Door open switch input (activated to earth)
12	DOWN window button input (activated to earth)
13	n.c.
15	n.c.
16	n.c.
17	n.c.
18	n.c.
19	n.c.
20	Ignition-operated supply INT/A

PASSENGER SIDE SWITCH

The switch controlling the passenger window motor is not an electronic device but a simple control switch with an LED lighting up the ideogram

Pin out1 - Earth2 - Passenger side window up/down negative signal3 - Symbol lighting

OPERATION

ELECTRIC FRONT WINDOWS

The control unit controls the operation of the left and right front window motor depending on the installation. The window opening function is only activated if the key is in the ON position, except for the central closing/opening of the windows or the timed delay at the key off.The motor is controlled either manually or automatically, in accordance with the logic described below.Mode is manual when the user starts and stops the system by hand by means of the control buttons. The motor stops when the buttons are released.Mode is automatic when movement is started by pressing the control button for a period in excess of a preset value.In both manual and automatic mode, stopping the windows (switching off the electric supply to the window motor) is determined when the glass reaches the upper or lower end of travel position or through the intervention of the safety system if an obstacle is detected or when the engine is started.This is regulated exclusively by controlling the motor current, which must be self-adaptive, and/or by controlling the information coming from the Hall effect sensors at the motors.

the control unit does not download the electric window buttons directly, but via two (UP or DOWN) signals fromt he Door Node (NPG).

The control unit must cut off window operation in the following cases:

in the end of travel position, in either manual or automatic mode;
automatic arrest, after pressing the up or down control again.
when the engine is started, except during the lowering of the glass due to the intervention of the anti-crush safety function.

In the case of inconsistent commands issued simultaneously, there is no movement.

Anti-crush safety function

The protection is provided by a check on the torque and current of the motor. For each motor, there are 2 Hall-effect sensors which measure, via the number of pulses over time, the speed of the motor and the position of the glass. The signals coming from the sensors are acquired from the control unit.This function intervenes as follows: the device interrupts the movement of the ascending glass, if an obstacle is present, in time to prevent a force of over 90 N being exerted on the obstacle;Once the protection has inervened, the event is stored in memory. The protection will remain active for at least the next 2 ascents made immediately afterwards. Once the protection has intervened for 3 successive times, the anti-crush function is temporarily inhibited (in order to be able to shut the window in the case of deformation of the door).

The anti-crush protection is restored:

at the next key-on;
following a descent command;
after 60 seconds from the last intervention of the anti-crush protection.

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