| | Results of the tests |
| 0 | OIL LEVEL CHECK | All OK | Problems met | Operation |
|---|
| Check the oil level as described in See Test See Test 2127B OIL LEVEL CHECK | Continue to Step 2 | Level below the Max reference | Top up the oil levelContinue to Step 1 |
| Level above the Max reference | Reduce to the Max levelContinue to Step 2 |
| 1 | CHECK FOR OIL LEAKS | All OK | Problems met | Operation |
|---|
| Check that there are no oil leaks as described in See Test See Test 2127C HYDRAULIC GEAR SELECTION SYSTEM | Continue to Step 2 | Oil leaks detected | Replace/repair the parts concerned, and top up the oil levelContinue to Step 1 |
| 2 | OIL PRESSURE CHECK | All OK | Problems met | Operation |
|---|
| Check the oil pressure as described in See Test See Test 2127D OIL PRESSURE CHECK. | Neutral for low pressure only exists if the vehicle is stationary or moving at low speed (about 10 km/h) |
| Continue to Step 4 | Pressure < 40 bar | Continue to Step 3 |
| 3 | ELECTRIC PUMP OPERATION CHECK | All OK | Problems met | Operation |
|---|
| Check the correct operation of the pump as described in See Test See Test 2127E ELECTRIC SPEED SELECTION SYSTEM | Continue to Step 4 | Voltage below 11 V | Check the batteryContinue to Step 3 |
| It is not possible to make gear changes from the lever | Activate the ''clutch bleed'' service from the Examiner Plus or Smart to activate the pumpContinue to Step 4 |
| 4 | CONTROL UNIT ERRORS CHECK | All OK | Problems met | Operation |
|---|
| Check that there are no control unit errors. In particular: - Clutch solenoid current
- Clutch sensor
- Odd gear engagement (short circuit to Vbatt)
- Even gear engagement (short circuit to Vbatt)
| Continue to Step 9 | Presence of one or more of the errors included in the list | Continue to Step 5 |
| 5 | CHECKS ON FAULTS DETECTED | All OK | Problems met | Operation |
|---|
| Check the faults described in Test 2127I | Continue to Step 7 | Faulty connections | Repair/replace the wiringContinue to Step 7 |
| The active diagnosis of the solenoid valve is not successful and no faults are detected at the wiring (Clutch solenoid valve current and/or Even or odd gear engagement) | Continue to Step 6 |
| 6 | AFTER THE SOLENOID VALVE ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
|---|
| If this step has been reached for the active diagnosis of the clutch solenoid valve, replace it Op. 2127C56and check its operation by carrying out a C.M.If this step has been reached for the active diagnosis of the engagement solenoid valve, replace it Op. 2127C52and check its operation | Continue to Step 7 | . | |
| 7 | POTENTIOMETER REPLACEMENT | All OK | Problems met | Operation |
|---|
| If there is a clutch sensor error and no faults are detected at the connections/wiring, replace the clutch potentiometer Op. 2127E44and check that the position reading is correct by carrying out a series of C.M. | Continue to Step 8 | . | |
| 8 | 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 9 |
| 9 | DOOR SWITCH CHECK | All OK | Problems met | Operation |
|---|
| Check the state of the driver''s door switch (it should be remembered that the system recognizes the opening of the door if the accelerator pedal is released for 2 seconds, the brake not pressed and the speed is below 4.5 km/h) | Continue to Step 10 | The door switch is not working properly | Check the state of the connections, the wiring and the switch. Repair/replace the part that is not working |
| 10 | CHECK THE CORRECT OPERATION OF THE LEVER | All OK | Problems met | Operation |
|---|
| Check the operation of the lever (remembering that neutral can be engaged with the vehicle moving at speeds below 40 km/h) | End of diagnosis | The lever is not working properly | Check the state of the connections and the wiring. Repair/replace the part that is not working |