| | 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 | Oil 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 relevant
parts, top up the oilContinue to Step 1 |
| 2 | OIL PRESSURE CHECK | All OK | Problems met | Operation |
|---|
| Check
the oil pressure See Test 2127D OIL PRESSURE CHECK | Continue to Step 4 | Pressure < 40 bar | Continue to Step 3 |
| 3 | CHECK PUMP OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the pump is working properly 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 carry out 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: - Brake switch error
- Clutch sensor error
- Control unit faulty error (microprocessor)
- Even gear engagement error
- Odd gear engagement error
- Clutch solenoid valve current error
- Electromagnetic brake error (Selection solenoid)
- Control unit earth error
- Load relay error
 | If there is a brake switch error,
the recovery considers the brake to be constantly pressed with the
engine running; this means that only changes to lower gears can
take place in automatic mode |
| 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 | Faulty connections (Clutch sensor,
Odd or even gear engagement, Clutch solenoid current, Electromagnetic
brake, Control unit earth error and/or Load relay error) | Restore/replace the wiringContinue
to Step 6 |
| The change of state does not take place (brake switch) | Check the brake pedal switch, its attachment and the
state of the wiring connections. Restore correct operationContinue
to Step 6 |
| There are no faulty connections (Clutch sensor) | Replace the clutch actuator (CSC) and check its operation
by carrying out a gear change.Continue to Step 6 |
| The test is not successful (Odd or even gear engagement) | Replace the solenoid valve Op. 2127C52 Continue
to Step 6 |
| There are no faulty connections (Clutch solenoid current) | Replace the solenoid valve Op. 2127C56 Continue
to Step 6 |
| 6 | AFTER THE CHECKS ON 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 THE CLUTCH DISC SPEED SENSOR | All OK | Problems met | Operation |
|---|
| Check
the clutch disc speed signal See Test 2127A Check on operation of clutch plate speed sensor through road test | Continue to Step 11 | There are problems with
the sensor signal | Continue to Step 8 |
| 8 | CHECK THE STATE OF THE CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check
the state of the connections and wiring of the speed sensor. | Remember that this sensor is on
the gearbox bellhousing near the reversing lights sensor |
| Continue to Step 9 | There are faults detected | Repair/replace the part that
is not workingContinue to Step 10 |
| 9 | REPLACE THE CLUTCH DISC SPEED SENSOR | All OK | Problems met | Operation |
|---|
| Replace
the clutch disc speed sensor Op. 2127E52 | Continue to Step 10 | - | |
| 10 | AFTER THE CHECK ON THE CLUTCH DISC
SPEED SENSOR | All
OK | Problems
met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | The fault persists | Continue to Step 11 |
| 11 | THE FAULT PERSISTS | All OK | Problems met | Operation |
|---|
| THE
FAULT PERSISTS Contact Technical Service for further information
on the problem | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |