| | Test results |
| 1 | GEAR ENGAGEMENT CHECK | All OK | Problems encountered | Operation |
|---|
| With the engine switched off and the key in the ON position, engage the gear in which the problem occurred and check that it is not flashing in the display | End of diagnosis | The gear is flashing in the display | Move on to Step 2 |
| 2 | CONNECTOR CHECK | All OK | Problems encountered | Operation |
|---|
| Apply stress to the vehicle wiring/hydraulic unit (20-way) connector to check that there are no loose contacts, then make sure that there is no flashing in the display See E7051 ROBOTIZED GEARBOX | End of diagnosis | The gear is flashing in the display | Move on to Step 3 |
| 3 | ERRORS IN AUTOMATED GEARBOX CONTROL UNIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check that there are no errors in the automated gearbox control unit. More specifically:- Engagement sensor error- Selection sensor error | Move on to Step 5 | One or more errors on the list are present | Move on to Step 4 |
| 4 | CHECKS ON FAULTS ENCOUNTERED | All OK | Problems encountered | Operation |
|---|
| Check the faults by carrying out See Test 2127OI WHAT TO DO DEPENDING ON THE ERROR PRESENT IN THE ROBOTIZED GEARBOX CONTROL UNIT | Move on to Step 5 | Wiring or connections faulty | Restore/replace the wiring See E7051 ROBOTIZED GEARBOX |
| 5 | ENGAGEMENT/SELECTION SENSORS REPLACEMENT | All OK | Problems encountered | Operation |
|---|
| - If no connection / wiring faults are detected and the gear engagement sensor is in error, replace it Op. 2127E42 HYDRAULIC SELECTION GEARBOX SHIFT POSITION SENSOR - R.R. and check that the reading for the position is correct by carrying out a series of gear changes.- If no connection / wiring faults are detected and the gear selection sensor is in error, replace it Op. 2127E40 HYDRAULIC SELECTION GEARBOX SPEED SELECTION POSITION SENSOR - R.R. and check that the reading for the position is correct by carrying out a series of gear changes. | It is advisable to mark the two potentiometers so that they can be recognised once they have been removed. |
| Move on to Step 6 | | |
| 6 | ENGAGEMENT/SELECTION POTENTIOMETER CONNECTORS CHECK | All OK | Problems encountered | Operation |
|---|
| Stress the engagement/selection connectors to check that there are no loose contacts, then check that the gear is not flashing in the display | Move on to Step 7 | The gear is flashing in the display | Renew/replace the prewiring and the wiring See E7051 ROBOTIZED GEARBOX |
| 7 | CORRECT OPERATION CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the fault is no longer present. | End of diagnosis | The fault persists | Contact technical service for further information on the problem |