2751009 - C20 THE GEARBOX IS STUCK'

It remains blocked in one gear with the vehicle stopped, and during acceleration the engine revs increase (the engaged gear is displayed)

		Results of the tests
0	CONTROL UNIT ERRORS CHECK	All OK	Problems met	Operation
	Check that there are no control unit errors. In particular: Clutch sensor error	Continue to Step 3	Presence of error indicated	Continue to Step 1
1	CHECKS ON FAULTS DETECTED	All OK	Problems met	Operation
	Check the faults according to the See Test   2127I  What to do for error in Selespeed control unit	End of diagnosis	Faulty connections	Repair/replace the wiringContinue to Step 2
2	AFTER THE CHECKS ON THE FAULTS DETECTED	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Continue to Step 3
3	CHECK THE LAYOUT OF THE CLUTCH SENSOR WIRING	All OK	Problems met	Operation
	Check the state of the connections, continuity of the wiring (it is important to pay particular to the layout of the clutch position sensor wiring in the engine compartment: the wire must not be too taut, and it must have sufficient slack)	Continue to Step 4	There is a fault	Repair/replace the part that is not workingContinue to Step 5
4	CARRY OUT CLUTCH PARAMETER CALIBRATION USING THE EXAMINER	All OK	Problems met	Operation
	In active diagnosis carry out the calibration of the clutch parameters through the 'clutch self-calibration enablement'	Continue to Step 5	The calibration is not successful	Continue to Step 6
5	CHECK THAT THE FAULT IS NO LONGER PRESENT	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Continue to Step 6
6	THE FAULT PERSISTS	All OK	Problems met	Operation
	Contact Technical Service for further information on the problem	End of diagnosis	.