| | Results of the tests |
| 0 | OIL LEVEL CHECK | All OK | Problems met | Operation |
|---|
| Check
the oil level See Test 2127B OIL LEVEL CHECK | Continue to Step 2 | Level below Max reference | Top up the oil levelContinue
to Step 1 |
| Level above Max reference | Reduce to Max levelContinue to Step 2 |
| 1 | CHECK FOR OIL LEAKS | All OK | Problems met | Operation |
|---|
| Check
that there are no oil leaks See Test 2127C CHECK FOR FLUID LEAKS | 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 See Test 2127D OIL PRESSURE CHECK  | Neutral for low pressure only exists
if the vehicle is stationary or moving at low speed (about 10-15
km/h) |
| Continue to Step 4 | Pressure < 40 bar | Continue to Step 3 |
| 3 | CHECK ON PUMP OPERATION | All OK | Problems met | Operation |
|---|
| Check
the correct operation of the pump See Test 2127E ELECTRIC PUMP OPERATION CHECK | 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 3 |
| 4 | CONTROL UNIT ERRORS CHECK | All OK | Problems met | Operation |
|---|
| Check that there are no control unit
errors. In particular: - Electromagnetic brake (Selection solenoid)
- Odd or even gear engagement (engagement solenoids)
| Continue to Step 7 | 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 See Test 2127I What to do depending on the error' present in the Selespeed control unit No accelerator pedal information. | End of diagnosis | Connection faults (Electromagnetic brake,
Clutch sensor) | Repair/replace the wiringContinue to Step 6 |
| The test is not successful (Electromagnetic brake) | Replace the solenoid valve Op. 2127C54 Continue
to Step 6 |
| The test is not successful (Odd or even gear engagement) | Replace the solenoid valve Op. 2127C52 Continue
to Step 6 |
| 6 | 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 7 |
| 7 | CHECK ENGAGEMENT OF ALL GEARS | All OK | Problems met | Operation |
|---|
| Check
that all the gears engage correctly See Test 2127J CHECK ON CORRECT ENGAGEMENT OF ALL GEARS USING THE GEAR LEVER WITH THE ENGINE RUNNING | Continue to Step 8 | The test is not successful | Contact Technical Service
for further information on the problem |
| 8 | CHECK THAT THE FAULT IS NO LONGER
PRESENT | All
OK | Problems
met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |