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Automated Manual Transmission
23
Clutch Kiss Point Self Tuning:
The guidelines of the procedure are illustrat-
ed below:
When?
At vehicle Grid self tuning
After replacing the control unit
After replacing/removing gearbox
After replacing/removing KIT (uncoupling)
After replacing clutch
Why?
The routine is designed to quickly recalcu-
late the "kiss point" which is the position at
which the clutch starts to transmit drive
torque.
What tools are needed?
Diagnosis equipment
NOTES:
The procedure takes approximately 1 minute.
Power latch takes approximately 15 seconds.
The procedure must be requested before
starting the engine, with key-on and trans-
mission in neutral. The engine can then be
started.
The procedure can also be requested after
starting the engine providing the gearbox is
in neutral. If the gearbox is not in neutral, the
request remains pending until neutral is en-
gaged (see below)
It is necessary to wait for the TCU to com-
plete the 5 activation cycles before key off.
The 5 cycles are carried out automatically
with the command sent only once.
The pro-
cedure can start in the following conditions:
Ignition ON
No gear change in progress
Transmission in neutral
Engine on.
The instrument request will remain pending
until at least one of the previous conditions
occurs. The procedure will be run as soon as
the aforesaid conditions occur.
The following conditions are monitored dur-
ing the procedure:
Ignition ON
Transmission in neutral
Clutch position sensor ok
Engagement actuators OK
Sensor/actuator/ECU power supply OK
If even only one of the above conditions is no
longer satisfied, the procedure is aborted
(auto calibration not ok).
The test equipment cannot request the inter-
ruption of the procedure. It will be concluded
after having been started.
No gear change requests are made during
the kiss calibration procedure.
Grid Self-Tuning:
The guidelines of the procedure are illustrat-
ed below:
When?
At Grid self tuning (when necessary)
After replacing the gearbox
After replacing/uncoupling KIT
After replacement of any selection or en-
gagement Sensor
After replacing the control unit
Why?
The routine is designed to memorise the
gear change grid thresholds.
What tools are needed?
Diagnosis tool