3363717 - Introduction - FITTINGS

DOOR

SPECIFICATIONS

The layout of the panel functional elements has been designed to allow the correct interaction with the body of the occupant in the case of a side impact.They are soft and smooth in the top section, whilst the protrusion of the armrest is made harmless by the fact that it collapses and presents no risk of injury to the abdomen. The door also features a Carrier which, in addition to supporting the electric window motor, guides and various cables, is integrated with the actual door and performs a structural function.
1 - Door inner panel 2 - Carrier 3 - Electric window guides 4 - Opening mechanism bowden cable 5 - Rear view mirror 6 - Door lock catch 7 - Seal 8 - Window 9 - Door control panel 10 - Door check strap 11 - Door interior opening handle 12 - Electric window motor 13 - Door node 14 - Lock

SUNROOF

INTRODUCTION

All vehicles can be fitted as an option with a laminated glass sun roof which can be operated by a remote control on certain versions.The laminated glass sun roof and electronically adjusted PVC blind make it possible to provide excellent light for the passenger compartment when the roof is closed and an intake of air when it is open through the six possible adjustment positions.The system is also fitted with an anti-crush safety device which stops the movement of the roof if there are any obstacles present.

SPECIFICATIONS:

The sun roof assembly consists of a system of mechanism which adjust the position of the five glass plates reinforced by an aluminium frame. The sun roof is opened by an electric motor and adjusted through a 6 position selector ( including zero '0'); in particular, the first roof plate has a rocker movement whilst the other 4 plates have a traversing movement.The sun roof system is also fitted with a sliding sun blind (electronically operated by a second electric motor) whose opening cannot be lower than the opening of the actual plates.The selection controls are located in the centre courtesy light and are managed by two control unit (master for the front and slave for the rear) which interact with each other controlling the action of the two built-in motors at the longitudinal edges of the roof.The movement mechanisms are fitted in the aluminium guides and driven by a clock spring operated by the front electric motor.There are also drainage channels on the four front and rear sides of the frame which drain off water that could filter from the seals through pipes with anti-reflux valves (which will probably be eliminated).Safety is guaranteed by an anti-crush system which is activated for the entire range of movement when both the sun blind and the roof are being closed.

COMPOSITION

The sun roof consists of:

  • a frame comprising two aluminium guides in which the movement mechanisms slide and two crossmembers, front and rear, made from plastic which define the width of the roof and complete the frame
  • a right and left mechanism system, fitted in the aluminium guides, for moving the glass plates
  • a sliding PVC roller sun blind with metal reinforcement ribs and a an aluminium profile front crossmember which slides along the entire length of the roof and is operated by a second electric mitor;
  • five reinforced glass plates, each with a frame;
  • two electric movement motors which interact with one another through the respective built-in control units (motor current absorption: when moving plates and blind about 10A per motor)
The diagram below shows the laminated sun roof opening system.
1 Control panel 2 First plate selector in tilt position

OPERATION

The operating logic described below is achieved through the action of two electric motors managed by two electronic control units (known as Master and Slave) which control the laminated glass roof and the sun blind, respectively. The sun roof moves along the sliding guides, positioned on the frame, through a bowden cable (rack) operated by an electric motor located in the front part of the roof frame. The action of the motor causes the vertical movement of the lift lever for the first plate which produces the two permitted positions for the spoiler, later on the cable acts on the attachment brackets for the other plates moving them until the total permitted opening is completed. The sun roof is fitted with a sun blind underneath which can be operated indepdently (with the plates closed) using the two buttons on the courtesy light and/or automatically through the (Master) control unit which, when the sun roof is opening, co-ordinates the alignment of the blind with the opening position of the second plate. The closing of the blind is subject to the opening position of the plates: the blind cannot, in effect, be closed with the glass open.

The sun roof may be moved manually by means of the selector under the following conditions:

  • with the ignition key in the Key On position
  • the roof can be moved remotely, i.e. when the control unit receives the control signals from the Body Computer.
The Master Control Unit is connected in series to the Body Computer therefore a problem with the latter will affect the roof operating logic.
The anti-crush safety function is always active during movement, slide/tilt operations (including operations controlled remotely).
Do not disconnect the battery or supply the sun roof with power during motion. If this happens, the control units lose their memory and must be reset as described in the Chapter 'Resetting Control Unit Memory' up to step 3.

Anti-crush function

In order to limit possible damage to passengers or objects whilst the roof is moving, an anti-crush safety function is included. The safety system is present for the entire blind closing range on the front profile of the second plate during sliding and on the rear edge of the first plate during tilting.After detecting a force which is greater than a pre-set level, the Master Control Unit (fitted at the front) which governs the roof plates, immediately stops the movement in the case of the first plate and completely reverses the tilting movement, whilst in the case of the second plate it orders the immediate halting and reversal of the movement for a travel of 200 mm.The function is also activated during closure on the front profile of the blind and is operated by the Slave Electronic Control Unit (fitted at the rear) after an obstacle (e.g. finger, hand) is encountered, guaranteeing the reversal of the movement for a travel of 200 mm.The anti-crush safety function can be excluded by placing the selector in the inhibitor position which works within 5 secs. After the roof has stopped, when the rotary selector is pressed in position '0' the control remains activated until the roof is closed or until the selector is released: in this case the function is not activated.

Selector and control panel

The controls, located in the centre courtesy light, include the six position rotary selector (including '0') (clockwise direction for opening, five positions and anti-clockwise direction for closing) and the two one-touch type blind opening/closing buttons
A - Opening of first plate in tilt position B - Sliding of other plates

CONTROL PANEL:

  • The two buttons open and close the blind
  • if either button is pressed again the blind stops in the desired position

SELECTOR POSITIONS:

  • 0 roof completely closed
  • 1 minimum tilt position for first plate
  • 2 - maximum tilt position for first palte and second plate retracted
  • 3 - 5 sliding positions for second plate and other plates retracted
The opening/closing of the sun blind is subject to the position of the glass plates. Whilst the plates are opening the blind moves automatically reaching a position where it covers the glass when it is completely open, whilst during closure the blind is about 30 mm ahead of the second plate and stops 30 mm from the end of travel position.

Control units

The table below summarizes the functions of the two control units
1 - ANTI-CRUSH FUNCTION 2 - OPENING/CLOSING ROOF USING SELECTOR 3 - SPEEDOMETER SIGNAL 4 - LIGHTING SIGNAL 5 - MANUAL BLIND CONTROL 6 - ROOF CLOSING REMOTE CONTROL 7 - MASTER ELECTRONIC CONTROL UNIT (ROOF) 8 - BODY COMPUTER NODE 9 - SLAVE ELECTRONIC CONTROL UNIT (BLIND)The movement of the sun roof and the blind is governed by the Master Control Unit which manages a second Slave Control Unit both of which are housed in casings on the motor. These electric devices process the signals coming from either the selector/control panel or the remote control, through the Body Computer and also control the anti-crush safet function.The function is controlled by the control unit, which receives position and speed information from Hall effect sensors fitted to the motor. When effort in excess of a certain threshold is detected, corresponding to a higher current uptake, this is interpreted as an obstacle. The control unit then stops the roof immediately and moves it back in the opposite direction.The control unit also receives a vehicle speed signal because the vacuum created at certain speeds could change the effort required to close the roof and under certain conditions this could be interpreted as an impediment. The control unit therefore uses this signal to ensure movement is not halted inadvertantly.

Resetting the control unit memory

The initialization procedure must be carried out each time the sun roof control units are changed, whilst if there is a drop in the supply whilst he roof is working (failed supply from the battery) the procedure should be carried out up to step 3.

The initialization procedure is illustrated below:

  • 1 turn the rotary selector knob to position '0' (fully closed)
  • 2 keep the rotary selector pressed (for longer than 2 secs): the roof closes
  • 3 wait, keeping the roof completely closed until the blind has clicked shut twice (Hard closing position and then returns to the Soft closing position)
  • 4 release the selector and press it again within 3 secs.
  • 5 keep the selector pressed until the roof (glass and blind) is completely open and then closed again
  • 6 release the selector;
The initialization is completed at this point.
in the case of repairs to or problems with the Body Computer or a break in the battery connections, the motor absorption may be 26+26 A max

The initialization process cannot not take place successfully if one of the following conditions occurs:

  • The rotary selector has not been placed in position '0';
  • The selector has ben released during the manoeuvre;
  • The blind operating button has been pressed;
If the process has not been successfully concluded it should be repeated.

Control unit pin out

Master Control Unit
PIN NO.FUNCTION
4BATTERY +
relayPOWER GND
relayELECTRONIC GND
6SERIAL COMMUNICATION
5GL/CLOSED AUTHORIZATION
3SPEED SIGNAL
7FREE (contact strip 1)
8FREE (contact strip 2)
10POTI 1
9POTI 2
12.POTI 3
11.POTI 4
Slave Control Unit
PIN NO.FUNCTION
relaySERIAL COMMUNICATION
3SERIAL COMMUNICATION
5BATTERY +
7BATTERY +
9EARTH
11.EARTH

Adjustments

Complete sun roofDuring repair operations (replacing the frame or complete roof) or in the case of water or air penetration it may prove necessary to adjust the roof even if this adjustment requires great care and attention.The procedure is carried out (with the roof secured to the bodyshel by tightening the coaxial screws to the adjusters - 7 Nm) using the 4 adjustment nuts (the roof is raised when they are undone using a 19 mm spanner and lowered micrometrically when they are tightened) located at the ends of the aluminium guides on the actual fram
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