| | Results of the tests |
| 0 | CONTROL UNIT ERRORS CHECK | All OK | Problems met | Operation |
|---|
| Check that there are no control unit
errors. In particular: - Clutch sensor error
- Clutch solenoid current error
- Pump relay error
- Load relay error
- Selespeed pump error
- Engagement sensor error
- Microprocessor 2 error
| Continue to Step 4 | Presence of one or more
of the errors included in the list | Continue to Step 1 |
| 1 | CHECKS ON FAULTS DETECTED | All OK | Problems met | Operation |
|---|
| Check
the faults according to the See Test 2127I What to do for error in Selespeed control unit | Continue to Step 3 | Faulty connections (Clutch sensor,
Pump relay, Load relay, Selespeed pump and/or Engagement sensor) | Repair/replace the wiringContinue
to Step 3 |
| The active diganosis is not successful and there are
no faults detected at the wiring (Clutch solenoid valve) | Continue to Step 2 |
| Faulty pump relay and/or fuse (Selespeed pump) | Replace the componentContinue to Step 3 |
| Faults on pump winding (Selespeed pump) | Replace the component Op. 2127C30 Continue
to Step 3 |
| Replace the Robotized Gearbox control unit (Microprocessor
error 2) | Continue to Step 3 |
| 2 | 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. 2127C56 and check the operation
by carrying out a C.M. | Continue to Step 3 | . | |
| 3 | SENSOR REPLACEMENT | All OK | Problems met | Operation |
|---|
| If
there is a gear engagement sensor error and no faults are detected
at the connections/wiring, replace it Op. 2127E42 and check
that the position reading is correct by carrying out a series of
C.M. | Continue to Step 4 | . | |
| 4 | 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 5 |
| 5 | OIL LEVEL CHECK | All OK | Problems met | Operation |
|---|
| Check
the oil level as described in See Test 2127B OIL LEVEL CHECK | Continue to Step 7 | Level below the Max reference | Top up the oil levelContinue
to Step 6 |
| Level above the Max reference | Reduce to the Max levelContinue to Step 7 |
| 6 | CHECK FOR OIL LEAKS | All OK | Problems met | Operation |
|---|
| Check
that there are no oil leaks as described in See Test 2127C CHECK FOR OIL LEAKS | Continue to Step 7 | OIl leaks detected | Replace/repair the parts concerned,
and top up the oil levelContinue to Step 6 |
| 7 | OIL PRESSURE CHECK | All OK | Problems met | Operation |
|---|
| Check
the oil pressure as described in See Test 2127D OIL PRESSURE CHECK | Continue to Step 9 | Pressure < 40 bar | Continue to Step 8 |
| 8 | ELECTRIC PUMP OPERATION CHECK | All OK | Problems met | Operation |
|---|
| Check
the correct operation of the pump as described in See Test 2127E ELECTRIC PUMP OPERATION CHECK | Continue to Step 9 | Voltage below 11 V | Check the batteryContinue
to Step 8 |
| 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 9 |
| 9 | CHECK THE LAYOUT OF THE CLUTCH SENSOR
WIRING | All
OK | Problems
met | Operation |
|---|
|  | Check the state of the connections,
continuity of the wiring (it is important to pay particular to the
layout of the clutch position sensor wiring in the engine compartment:
the wire must not be too taut, and it must have sufficient slack) |
| Continue to Step 9 | There is a fault | Repair/replace the part that
is not workingContinue to Step 10 |
| 10 | CHECK THAT THE FAULT IS NO LONGER
PRESENT | All
OK | Problems
met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | The fault persists | Contact Technical Service
for further information on the problem |