2009 LAMBORGHINI GALLARDO Workshop Manual

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Page 409 of 1659

LAMBORGHINI GALLARDO 2009 Workshop Manual 5
L714 01 42 00
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Page 410 of 1659

LAMBORGHINI GALLARDO 2009 Workshop Manual 6
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Page 411 of 1659

LAMBORGHINI GALLARDO 2009 Workshop Manual 7
L714 01 42 00
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�0�:�%��Clutch statusclutch wear index default = 4000 ,
default max = 15000
clutch kiss point default = 480
clutch closed position default min = 1050 , defau

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0:%Clutch statusclutch wear index default = 4000 ,
default max = 15000
clutch kiss point default = 480
clutch closed position default min = 1050 , default max = 2000
clutch closed position (learned) default min = 1050 ,
default max = 2000
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• Output range 0 – 5 V
• Working range 0.293 – 4.398 V
• Diagnosis range < 0.293 V and > 4.398 V
Clutch wear
The reading of the clutch position sensor also determines the state of wear of the clutch.
The values that determine deterioration are read with the LaRa-AS (109000)in the0HDVXUHPHQW YDOXHV for the
E-GEAR system, channel 10 ( )LJ):
• Line 3 indicates the real clutch position
• Line 4 indicates the initial clutch position
The difference between the 2 values determines the thickness of the clutch, which is deteriorated when less than
5.6 mm.
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determine the clutch thickness measurement.
In addition to the value calculated by the difference of lines 3 and 4, also the other data establish the state of clutch
wear: • Line 1 indicates the degree of deterioration of the clutch (the clutch is deteriorated when the value is higher
than 15000)
• Line 2 indicates the Kiss Point of the clutch (the clutch is deteriorated when the value is higher than 800)

Page 412 of 1659

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Page 413 of 1659

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Page 414 of 1659

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The clutch closed position is self tuned when the clutch valve is off, including engine off.
The clutch closed position must be in the range 1050bit and 2000 bit.
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The kiss point is self tuned at each cranking when the gearbox is in neutral. The engine is colder than 70C and the
clutch estimated temperature is colder than 70C.
The average of each calculated kiss point value is used and stored in the TCU memory. 7KH.LVVSRLQWLVSHUIRUPHGGXULQJWKHYHKLFOHOLIHDQGLVKLJKO\¿OWHUHG
For a fast adaptation of kiss point an LaRa-AS (109000)service is implemented.
The range is 300bit < Kisspoint < 800bit (the frequent value is between 350 and 550 bit).
The routine is activated if the following condition are true: • The engine is ON
• No gear is engaged
• The clutch kiss point self tuning has never been performed or a special service is asked by the tested
and it is suspended if one of the following condition is true:
• a new cranking is requested during the self tuning
• the clutch is not able to open
• the clutch closure phase is completed and no clutch rotation is detected
• a gear is requested
• a failure is detected on the clutch position sensor or on the gear valves

Page 415 of 1659

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Page 416 of 1659

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