3360193 - C19 THE VEHICLE DOES NOT RUN
The engine does not startThe display shows the gear engaged but will not go into neutral to allow startingPreliminary check: If during engine starting you notice that the starter motor works normally, the problem is caused by other systems (engine management, ABS, fuel pump, etc.). Reference is made to the specific diagnoses.If the starter motor does not turn (after checking its operation and the relevant electrical circuit), continue with the next diagnostic chart| 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 relevant parts, 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 | 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 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:
| 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, Clutch solenoid current, Pump relay error, Load relay error, Selespeed pump, and/or Engagement sensor) | Repair/replace the wiringContinue to Step 6 | |
| There are no faulty connections (Clutch sensor) | Replace the clutch actuator (CSC) and check its operation by carrying out a gear changeContinue to Step 6 | |||
| There are no faulty connections (Clutch solenoid current) | Replace the solenoid valve Op. 2127C56 and check its operation by carrying out a gear change.Continue to Step 6 | |||
| Fault in pump relay and/or fuse (Selespeed pump) | Replace the componentContinue to Step 6 | |||
| Pump winding faults (Selespeed pump) | Replace the component Op. 2127C30 Continue to Step 6 | |||
| There are no faulty connections (Engagement sensor) | Replace the engagement potentiometer and check the correct reading of the position by carrying out a series of gear changes.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 ON BRAKE PEDAL SWITCH | All OK | Problems met | Operation |
| Check the operation of the brake pedal switch See Test 2127F CHECK ON BRAKE PEDAL SWITCH | Continue to Step 9 | The brake pedal switch is not working properly | Check the state of the connections, the wiring and the switch. Repair/replace the part that is not working.Continue to Step 8 | |
| 8 | AFTER THE CHECK ON THE BRAKE PEDAL SWITCH | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | The fault persists | Continue 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 attention 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 10 | 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 | |