2585420 - Introduction - MANOEUVRING AND WARNING SIGNALS

STALK UNIT

LOCATION OF COMPONENTS ON VEHICLE1 Steering column switch unit

STEERING WHEEL STALK UNIT

LOCATION OF COMPONENTS ON VEHICLE1. Steering column switch unit

FUNCTIONS

The steering column switch unit is designed to produce the following commands:

• Side lights, dipped headlamps, main beam headlamps;
• Headlamp flasher;
• Direction indicators;
• Windscreen wash/wipe;
• Rearscreen wash/wipe

FUNCTION

The steering column switch unit is designed to produce the following commands:

• Side lights, dipped headlamps, main beam headlamps;
• Headlamp flasher;
• Direction indicators;
• Windscreen wash/wipe;
• Rearscreen wash/wipe
• Follow me home function;
• Trip Computer zeroing / sliding

STRUCTURE

The steering column switch unit, as represented diagrammatically below, consists of the following components:Front view1 Left lever 2 Air Bag and horn connector 3 Release wheel and clock spring 4 Right lever 5. Casing 6. Internal electronic module 7. Connector A 8 Connector B 9 Connector C

STRUCTURE

The steering column switch unit, as represented diagrammatically below, consists of the following components:Front view1. Left lever 2. Air Bag and horn connector 3. Release wheel and clock spring 4. Right lever 5. Casing 6. Internal electronic module 7. Connector A 8. Connector B 9. Connector C

FUNCTIONS

It is a part of the steering column switch unit containing the electrical circuits and the switching and automatic release mechanisms which return the left lever to the rest position once the steering wheel has been realigned.

The typical angles are listed below:

• Engagment angle 80° ± 5°;
• Release angle 60° ± 5°.

FUNCTION

It is a part of the steering column switch unit containing the electrical circuits and the switching and automatic release mechanisms which return the left lever to the rest position once the steering wheel has been realigned.

The typical angles are listed below:

• Engagment angle 80° ± 5°;
• Release angle 60° ± 5°.

COMPOSITION

The front part of the casing houses the release wheel or the air bag clock spring which provides the interface with the steering wheel.At the rear is the manifold with a retaining band for fastening it to the steering column and additional attachments which guarantee the axial and angular position of the steering column switch unit on the steering column.The steering column switch unit casing contains the fastenings for the upper/lower half casing trims.The rear of the casing contains the housigns for the electrical connectors.

COMPOSITION

The front part of the casing houses the release wheel or the air bag clock spring which provides the interface with the steering wheel.At the rear is the manifold with a retaining band for fastening it to the steering column and additional attachments which guarantee the axial and angular position of the steering column switch unit on the steering column.The steering column switch unit casing contains the fastenings for the upper/lower half casing trims.The rear of the casing contains the housigns for the electrical connectors.

FUNCTIONS

The electronic module inside the steering column switch unit casing has the task of controlling the following functions:

• Windscreen wiper (frequency for de-luxe version only);
• Rearscreen wiper (frequency for de-luxe version only);
• Windscreen washer function ('smart' washing for all versions);
• Rearscreen washer function ('smart' washing for de-luxe version only)

FUNCTION

The electronic module inside the steering column switch unit casing has the task of controlling the following functions:

• Windscreen wiper (frequency for de-luxe version only);
• Rearscreen wiper (frequency for de-luxe version only);
• Windscreen washer function ('smart' washing for all versions);
• Rearscreen washer function ('smart' washing for de-luxe version only)

Smart washing

Smart washing makes it possible to operate the water jet and the wipers in one single movement; the wipers start working 1 second after the lever which controls the jet of water is operated and they stop working 4 strokes after the control has been released.The smart washing function is valid for both the windscreen washer and the rearscreen washer.There are two smart washing logics according to the trim level (standard or de-luxe) with the operating modes described in the diagrams:Basic trim level1 Operation 2 Punp 3 Windscreen/rearscreen wiper A. 1 second B. 4 windscreen/rearscreen wiper strokes

Smart washing

Smart washing makes it possible to operate the water jet and the wipers in one single movement; the wipers start working 1 second after the lever which controls the jet of water is operated and they stop working 4 strokes after the control has been released.The smart washing function is valid for both the windscreen washer and the rearscreen washer.There are two smart washing logics according to the trim level (standard or de-luxe) with the operating modes described in the diagrams:Basic trim level1. Control 2. Pump 3. Windscreen/rearscreen wiper A. 1 second B. 4 windscreen/rearscreen wiper strokes

Smart washing

De-Luxe trim level1 Operation 2 Punp 3 Windscreen/rearscreen wiper A. 1 second B. 4 windscreen wiper strokes C. 10 seconds D. 1 windscreen/rearscreen wiper stroke

Smart washing

De-Luxe trim level1. Control 2. Pump 3. Windscreen/rearscreen wiper A. 1 second B. 4 windscreen wiper strokes C. 10 seconds D. 1 windscreen/rearscreen wiper stroke

STRUCTURE

The electronic module consists of an electronic control unit electrically connected to the steering column switch unit casing by means of special terminals and mechanically fastened to it so that it can be replaced if faulty.WIRING CIRCUIT DIAGRAMA. Steering column switch unit B. Lights/direction indicator controls C. Side lights control D. Wiper controls E. Pump controls F. Electronic module 1 Winscreen wiper 2 Rearscreen wiper 3 Electric pump

STRUCTURE

The electronic module consists of an electronic control unit electrically connected to the steering column switch unit casing by means of special terminals and mechanically fastened to it so that it can be replaced if faulty.PRINCIPLE WIRING DIAGRAMA. Steering column switch unit B. Lights/direction indicator controls C. Side lights control D. Wiper controls E. Pump controls F. Electronic module 1. Windscreen wiper 2. Rearscreen wiper 3. Electric pump

STRUCTURE

The following interfaces are defined with reference to the wiring diagram illustrated:

Interface	Signal	Description
BC1	OUT	Left direction indicator operation request to body computer
BC2	OUT	Right direction indicator operation request to body computer
BC3	OUT	Dipped headlamps operation request to body computer
BC4	OUT	Main beam headlamps operation request to body computer
LP	OUT	Direct operation of no. plate light and passenger compartment controls lights, also acquired from body computer for operating the side lights.
TC2	OUT	Windscreen wiper 2nd speed command Nominal absorption from 1.7 to 4 Ampere, with the windscreen wiper motor stopped the absorption increases to 32.4 Ampere with a voltage value of 13.5 Volt.
TC3	IN	Windscreen wiper zeroing cam, this consists of a switch fitted on the motor which is normally open when the windscreen wiper is in the rest position (wiper blades parked at bottom) and is active when earthed.
TL1	OUT	Rearscreen wiper operation. Absorption from 1 to 2.5 Ampere, with the windscreen wiper motor stopped the absorption increases to 14 Ampere, with a voltage value of 13.5 Volt.
TL2	IN	Rearscreen wiper zeroing cam, this consists of a switch fitted to the motor which is normally open when the rearscreen wiper is in the rest position (wiper blades parked at bottom) and is active when earthed.
P1	OUT	Windscreen/rearscreen washer pump operation Absorption from 2.5 to 3.5 Ampere, with the windscreen wiper motor stopped the absorption increases to 11.8 Ampere, with a voltage value of 13.5 Volt.
P2	OUT	Windscreen/rearscreen washer pump operation Absorption from 2.5 to 3.5 Ampere, with the windscreen wiper motor stopped the absorption increases to 11.8 Ampere, with a voltage value of 13.5 Volt.
C1	IN	This represents the set of wiping and washing function commands to the electric module.
C2	IN	This represents the set of wiping and washing function commands to the electric module.

STRUCTURE

The following interfaces are defined with reference to the wiring diagram illustrated:

Interface	Signal	Description
BC1	OUT	Left direction indicator operation request to body computer
BC2	OUT	Right direction indicator operation request to body computer
BC3	OUT	Dipped headlamps operation request to body computer
BC4	OUT	Main beam headlamps operation request to body computer
LP	OUT	Direct operation of no. plate light and passenger compartment controls lights, also acquired from body computer for operating the side lights.
TC2	OUT	Windscreen wiper 2nd speed command Nominal absorption from 1.7 to 4 Ampere, with the windscreen wiper motor stopped the absorption increases to 32.4 Ampere with a voltage value of 13.5 Volt.
TC3	IN	Windscreen wiper zeroing cam, this consists of a switch fitted on the motor which is normally open when the windscreen wiper is in the rest position (wiper blades parked at bottom) and is active when earthed.
TL1	OUT	Rearscreen wiper operation. Absorption from 1 to 2.5 Ampere, with the windscreen wiper motor stopped the absorption increases to 14 Ampere, with a voltage value of 13.5 Volt.
TL2	IN	Rearscreen wiper zeroing cam, this consists of a switch fitted to the motor which is normally open when the rearscreen wiper is in the rest position (wiper blades parked at bottom) and is active when earthed.
P1	OUT	Windscreen/rearscreen washer pump operation Absorption from 2.5 to 3.5 Ampere, with the windscreen wiper motor stopped the absorption increases to 11.8 Ampere, with a voltage value of 13.5 Volt.
P2	OUT	Windscreen/rearscreen washer pump operation Absorption from 2.5 to 3.5 Ampere, with the windscreen wiper motor stopped the absorption increases to 11.8 Ampere, with a voltage value of 13.5 Volt.
C1	IN	This represents the set of wiping and washing function commands to the electric module.
C2	IN	This represents the set of wiping and washing function commands to the electric module.

SPECIFICATIONS:

FUNCTIONS0. Lights off 1 Side lights on 2 Dipped headlamps on 3 Main beam headlamps on (stable position) 4 Headlamp flasher (unstable position) 5. Right direction indicators 6. Left direction indicators A. Ring nut B. Lever

SPECIFCATIONS

OPERATION0. Lights off 1. Side lights on 2. Dipped headlamps on 3. Main beam headlamps on (stable position) 4. Headlamp flasher (unstable position) / Follow me home 5. Right direction indicators 6. Left direction indicators A. Ring nut B. Lever

SPECIFICATIONS:

The left lever has the task of controlling:

• The main lights switch (side lights);
• Dipped/main beam headlamps switch;
• The headlamp flasher on main beam;
• Direction indicators and lane chage.

SPECIFCATIONS

The left lever has the task of controlling:

• The main lights switch (side lights);
• Dipped/main beam headlamps switch;
• The headlamp flasher on main beam;
• Direction indicators and lane change;
• Follow me home function activation;

STRUCTURE

The left lever consists of two parts:

• A lever for controlling the main beam headlamps and the direction indicator;
• A ring nut at the end of the actual lever for controlling the side lights and the dipped headlamps.

STRUCTURE

The left lever consists of two parts:

• A lever for controlling the main beam headlamps and the direction indicator;
• A ring nut at the end of the actual lever for controlling the side lights and the dipped headlamps.

OPERATING METHODS

The operation of the exterior lights is controlled by the right lever as described below.

OPERATING METHODS

The operation of the exterior lights is controlled by the right lever as described below.

Main lights switch

The lights control is at the end of the lever and is activated by rotating a ring nut.

There are 3 stable positions for the ring nut when it is rotated in an anti-clockwise direction:

• Zero position (0), in this rest position, the lights are off;
• Position one (1), side lights on;
• Position two (2), side lights and dipped headlamps on, plus the go ahead to switch on or flash the main beam headlamps and the rear fog lamp/fog light.

All manoeuvres of the ring nut (from 0 to 2 and viceversa) are only possible using the left steering column switch unit lever in the dipped headlamps position; the above movements cannot be made with the lever in the main beam headlamps position.

Main lights switch

The lights control is at the end of the lever and is activated by rotating a ring nut.

There are 3 stable positions for the ring nut when it is rotated in an anti-clockwise direction:

• Zero position (0), in this rest position, the lights are off;
• Position one (1), side lights on;
• Position two (2), side lights and dipped headlamps on, plus the go ahead to switch on or flash the main beam headlamps and the rear fog lamp/fog light.

All manoeuvres of the ring nut (from 0 to 2 and viceversa) are only possible using the left steering column switch unit lever in the dipped headlamps position; the above movements cannot be made with the lever in the main beam headlamps position.

Dipped/main beam headlamps switch

By moving the lever starting from position (3) in the opposite direction to the steering wheel rim (movement perpendicular to the steering wheel plane) position (4) is created, i.e. the main beam headlamps stable position. During this switching stage from dipped to main beam headlamps and viceversa there is no break in the electrical contact causing the lights to go out (preventative safety).

Dipped/main beam headlamps switch

By moving the lever starting from position (3) in the opposite direction to the steering wheel rim (movement perpendicular to the steering wheel plane) position (4) is created, i.e. the main beam headlamps stable position. During this switching stage from dipped to main beam headlamps and viceversa there is no break in the electrical contact causing the lights to go out (preventative safety).

Control for headlamp flasher

By moving the lever starting from position (2) towards the steering wheel rim (movement perpendicular to the steering wheel plane) position (4) is produced, i.e. the main beam headlamps unstable (flashing) position, when the lever is released, it returns to the rest position.

Control for headlamp flasher

By moving the lever starting from position (2) towards the steering wheel rim (movement perpendicular to the steering wheel plane) position (4) is produced, i.e. the main beam headlamps unstable (flashing) position, when the lever is released, it returns to the rest position.

Control for direction indicators and lane change

The direction indicators are operated by moving the lever on the steering wheel plane in two directions - clockwise and anti-clockwise (5) and (6).The movement of the control, in each direction, involves two distinct activating modes for the same electrical contact, one defined as UNSTABLE (lane change) and one defined as STABLE (change of direction).The lane change function is activated through a lesser angular movement than that required for activating the change in direction.The automatic release device intervenes for each stable position of the direction indicators and has the function of returning the lever to the rest position (position 2) after the steering wheel has been realigned.

Control for direction indicators and lane change

The direction indicators are operated by moving the lever on the steering wheel plane in two directions - clockwise and anti-clockwise (5) and (6).The movement of the control, in each direction, involves two distinct activating modes for the same electrical contact, one defined as UNSTABLE (lane change) and one defined as STABLE (change of direction).The lane change function is activated through a lesser angular movement than that required for activating the change in direction.The automatic release device intervenes for each stable position of the direction indicators and has the function of returning the lever to the rest position (position 2) after the steering wheel has been realigned.

FUNCTIONS

The diagram below illustrates the functions performed by the right lever.0. Windscreen wiper switched off 1 Intermittent operation (stable) 2 Continuous slow operation (stable) 3 Continuous fast operation (stable) 4 Anti-panic function (unstable) 5. Rearscreen wiper off 6. Rearscreen wiper on (stable) A. Windscreen washing and wiping (unstable) B. Rearscreen washing and wiping (unstable) C. Ring nut adjusting frequency of wiping from I to IV (only on de-luxe version) D. Ring nut E. Lever

FOLLOW ME HOME

With the key extracted or in the OFF position, moving the lever (B) towards the steering wheel (movement perpendicular to the steering wheel plane) within 2 minutes of the engine being switched off, produces position (4), i.e. the unstable position for activating the FOLLOW ME HOME function, in other words the activation of lighting the space surrounding the vehicle (side lights and dipped headlamps) for a certain period of time.Each time the lever is operated, light activation is extended by 30 seconds, up to a maximum of 3.5 minutes (210 seconds); the lights go out automatically at the end of this period.Maintaining position (4) with the function activated for more than 2 seconds switches off the lights and resets the counter for both the remaining time and the controls valid for the function.

FUNCTIONS

The right lever has the task of controlling:

• The winscreen wiper;
• The windscreen washer;
• The rearscreen wiper;
• The rearscreen washer.
• The adjustment of the frequency of the windscreen/rearscreen stroke (de-luxe version only)

FUNCTION

The diagram below illustrates the functions performed by the right lever (de luxe version0.0. Windscreen wiper switched off 1. Intermittent operation (stable) 2. Continuous slow operation (stable) 3. Continuous fast operation (stable) 4. Anti-panic function (unstable) 5. Rearscreen wiper off 6. Rearscreen wiper on (stable) A. Windscreen washing and wiping (unstable) B. Rearscreen washing and wiping (unstable) C. Ring nut adjusting frequency of wiping from I to IV (only on de-luxe version) D. Ring nut E. Lever F. Trip Computer zeroing button/sliding

STRUCTURE

The left lever consists of two parts:

• A lever for controlling the front and rear wipers;
• A ring nut at the end of the lever for adjusting the frequency of the strokes (de-luxe version only).

FUNCTION

The right lever has the task of controlling:

• The winscreen wiper;
• The windscreen washer;
• The rearscreen wiper;
• The rearscreen washer.
• The adjustment of the frequency of the windscreen/rearscreen stroke (de-luxe version only)

WINDSCREEN AND REARSCREEN WIPER OPERATING METHODS

The operation of the windscreen wiper and the rearscreen wiper is controlled by the right lever as described below.

STRUCTURE

The right lever consists of two parts:

• A lever for controlling the front and rear wipers;
• A ring nut at the end of the lever for adjusting the frequency of the strokes (de-luxe version only).
• A button for the Trip Computer functions.

Windscreen wiper operation

The operation is achieved by moving the lever on the steering wheel, there are 5 different positions:

POS 0	No circuit switched on	(stable)	[Rest position]
POS 1	Intermittent	(stable)	[clockwise direction]
POS 2	Continuous 1st speed	(stable)	[clockwise direction]
POS 3	Continuous 2nd speed	(stable)	[clockwise direction]
POS 4	Anti-panic position	(unstable)	[anti-clockwise direction]

Control for adjusting windscreen wiper intermittent function (de-luxe trim level version)The control is at the end of the right lever and is operated by turning a special ring nut in a clockwise direction in 4 stable positions. The control has two stable positions when moved in a clockwise direction to which 4 intermittent windscreen wiper operating modes correspond, with increasing frequency, see the graph and the table below for better clarity:1 Operation A. First impulse B. Second impulse T. is the intervla between two successive windscreen/rearscreen wiper strokes Tc. is the time managed by the electronic module Tp. is the rest time between two control impulses managed by the electronic module

WINDSCREEN AND REARSCREEN WIPER OPERATING METHODS

The operation of the windscreen wiper and the rearscreen wiper is controlled by the right lever as described below.

Windscreen washer control

The windscreen washer is operated by pulling the lever towards the steering wheel, the control is UNSTABLE as a result of which when the lever is released it returns to the rest position.The operation of the control involves activating the windscreen wiper in accordance with the 'smart washing' function described under the ELECTRONIC MODULE.

Windscreen wiper operation

The operation is achieved by moving the lever on the steering wheel, there are 5 different positions:

POS 0	No circuit switched on	(stable)	[Rest position]
POS 1	Intermittent	(stable)	[clockwise direction]
POS 2	Continuous 1st speed	(stable)	[clockwise direction]
POS 3	Continuous 2nd speed	(stable)	[clockwise direction]
POS 4	Anti-panic position	(unstable)	[anti-clockwise direction]

Control for adjusting windscreen wiper intermittent function (de-luxe trim level only)The control is at the end of the right lever and is operated by turning a special ring nut in a clockwise direction in 4 stable positions. The control has two stable positions when moved in a clockwise direction to which 4 intermittent windscreen wiper operating modes correspond, with increasing frequency, see the graph and the table below for better clarity:1. Control A. First impulse B. Second impulse T. is the intervla between two successive windscreen/rearscreen wiper strokes Tc. is the time managed by the electronic module Tp. is the rest time between two control impulses managed by the electronic module

Rearscreen wiper control

The control for the rearscreen wiper is at the end of the right lever and is operated by turning a special ring nut. The control has two STABLE positions and is turned in a clockwise direction:

Basic trim level:

• Pos. 0 = No circuit switched on;
• Pos. 1 = Rearscreen wiper operating continuously

De-Luxe trim level:

• Pos. 0 = No circuit switched on;
• Pos. 1 = Rearscreen wiper operating intermittently

All the instructions given for the operation of the windscreen wiper are valid.

Windscreen washer control

The windscreen washer is operated by pulling the lever towards the steering wheel, the control is UNSTABLE as a result of which when the lever is released it returns to the rest position.The operation of the control involves activating the windscreen wiper in accordance with the 'smart washing' function described under the ELECTRONIC MODULE.

Rearscreen washer control

It is operated by pushing the right lever towards the dashboard, the position is UNSTABLE as a result of which when the lever is released it returns to the rest position.The operation of the control involves the activation of the rearscreen wiper in continuous mode on the basic trim level and with the 'smart washing' function described under the ELECTRONIC MODULE.

Rearscreen wiper control

The control for the rearscreen wiper is at the end of the right lever and is operated by turning a special ring nut. The control has two STABLE positions and is turned in a clockwise direction:

Basic trim level:

• Pos. 0 = No circuit switched on;
• Pos. 1 = Rearscreen wiper operating continuously

De-Luxe trim level:

• Pos. 0 = No circuit switched on;
• Pos. 1 = Rearscreen wiper operating intermittently

All the instructions given for the operation of the windscreen wiper are valid.

PINS

The pin-outs for the connectors on the steering column switch unit are illustrated below.

Rearscreen washer control

It is operated by pushing the right lever towards the dashboard, the position is UNSTABLE as a result of which when the lever is released it returns to the rest position.The operation of the control involves the activation of the rearscreen wiper in continuous mode on the basic trim level and with the 'smart washing' function described under the ELECTRONIC MODULE.

PINS

Connector A

Pin	Operation	Rated current (A)
A1	Horn output	0.2
A2	Standard anti-theft device preparation output	0.2
A3	Spare N.C	---
A4	Spare N.C	---
A6	Windscreen wiper zeroing input	0.07
A7	Power earth input	2.5 - 3.5
A8	2nd windscreen wiper speed output	1.7 - 4.0
A9	1st windscreen wiper speed output	1.1 - 2.9
A10	Rearscreen washer two-way pump control output (positive)	2.5 - 3.5
A11	Windscreen wiper/pump INT/A input	6.5
A12	Rearscreen washer two-way pump control output (positive)	2.5 - 3.5

PIN-OUT

The pin-outs for the connectors on the steering column switch unit are illustrated below.

PINS

Connector B

Pin	Operation	Rated current (A)
B1	Right turn signal control	0.05
B2	Main beam headlamp/flasher control	0.05
B3	Dipped headlamps control	0.05
B4	Rear fog lamp go ahead	0.2
B5	INT for side lights operation	2.0
B6	Side lights control to Body C.	0.05

PIN-OUT

Connector A

Pin	Function	Nominal current (A)
A1	Horn output	0.2
A2	Standard anti-theft device preparation output	0.2
A3	Spare N.C	---
A4	Spare N.C	---
A6	Windscreen wiper zeroing input	0.07
A7	Power earth input	2.5 - 3.5
A8	2nd windscreen wiper speed output	1.7 - 4.0
A9	1st windscreen wiper speed output	1.1 - 2.9
A10	Rearscreen washer two-way pump control output (positive)	2.5 - 3.5
A11	Windscreen wiper/pump INT/A input	6.5
A12	Rearscreen washer two-way pump control output (positive)	2.5 - 3.5

PINS

Connector C

Pin	Operation	Rated current (A)
C1	Available	---
C2	Rearscreen wiper supply	3.5
C3	Rearscreen wiper motor supply	3.5
C4	Rearscreen zeroing input	3.5
C5	Signal earth	0.5
C6	Left hand turn signal control	0.05

PIN-OUT

Connector B

Pin	Function	Nominal current (A)
B1	Right turn signal control	0.05
B2	Main beam headlamp/flasher control	0.05
B3	Dipped headlamps control	0.05
B4	Rear fog lamp go ahead	0.2
B5	INT for side lights operation	2.0
B6	Side lights control to Body C.	0.05

PIN-OUT

Connector C

Pin	Function	Nominal current (A)
C1	Trip Computer negative signal from button (to NQS)	0.01
C2	Rearscreen wiper supply	3.5
C3	Rearscreen wiper motor supply	3.5
C4	Rearscreen zeroing input	3.5
C5	Signal earth	0.5
C6	Left hand turn signal control	0.05