125000491 - C29 GEAR FLASHING ON THE DISPLAY

Driving with any gear engaged.
Results of the tests
0GEAR ENGAGEMENTAll OKProblems metOperation
With the engine switched off and the ignition ON, engage the gear in which the problem occurred and check that the display is not flashingEnd of diagnosisThe gear flashes in the displayContinue to Step 1
1CONNECTOR CHECKAll OKProblems metOperation
Stress the vehicle wiring/hydraulic unit (20-way) connector to check that there are no slack contacts, then make sure that the gear is not flashing in the display.End of diagnosisThe gear flashes in the displayRenew/replace the connectorContinue to Step 2
2ENGAGEMENT/SELECTOR POTENTIOMETER CONNECTORS CHECKAll OKProblems metOperation
Stress the engagement/selection connectors to check that there are no slack contacts, then check that the gear is not flashing in the displayContinue to Step 3The gear flashes in the displayRenew/replace the prewiring and the wiring
3ENGAGEMENT/SELECTION SENSORS REPLACEMENTAll OKProblems metOperation
Fit tool no. 1870753001.Replace the gear engagement sensor Op. 2127E42and check that the position reading is correct by carrying out a series of C.M.Replace the gear selection sensor Op. 2127E40and check that the position reading is correct by carrying out a series of C.M.
It is advisable to mark the two potentiometers in order to be able to recognize them once they have been removed
End of diagnosisThe fault persistsContact Technical Service for further information on the problem