194002090 - B015 ENGINE DOES NOT START (STARTER MOTOR WORKING)

The customer complains of: The engine does not start, the starter motor is working normally
Results of the tests
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
Check that the engine oil level is correct    Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARYCheck that the air intake/vacuum circuit is working properly    See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECKCheck the condition of the fuel supply circuit and make sure that it is working properly    See Test 1040OA FUEL SUPPLY CIRCUIT CHECKMove on to Step 1Oil level incorrectRestore the correct oil level    Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY
1AMBIENT PARAMETERS CHECKAll OKProblems encounteredOperation
Select the following control unit at the diagnostic equipment: EDC16C39 Diesel electronic injection control unit.Check the value of the following parameters:. Battery voltage    See Test 5530BB BATTERY VOLTAGE CHECK. Objective Diesel pressure. Measured Diesel pressure    See Test 1060GH DIESEL FUEL PRESSURE CHECK. Engine rpm    See Test 1060GI ENGINE SPEED CHECKMove on to Step 2
2PARTICLE FILTRATION SYSTEM CHECKSAll OKProblems encounteredOperation
Check that the DPF system is working properly    See Test 1080BE PARTICULATE FILTER SATURATION CHECKMove on to Step 3
3PREHEATING RELAY ACTIVE DIAGNOSISAll OKProblems encounteredOperation
Carry out the active diagnosis for the preheating relay, checking that the result is positive.
The check on the following system is only necessary if the outside temperature is below 0 °C.
Move on to Step 5The result of the active diagnosis is negativeMove on to Step 4
4HEATER PLUGS CHECKAll OKProblems encounteredOperation
Check that the heater plugs are working properly, by carrying out the    See Test 5520CA GLOW PLUGS FUNCTIONAL TESTMove on to Step 5
5ELECTRICAL EQUIPMENT CHECKAll OKProblems encounteredOperation
Check that the fuses F1 (the last one at the bottom of the vertical row) and F20 (the first one on the right of the lower row) have not blownMove on to Step 7Fuse F1 has blownRestore the connections or, if necessary, replace the junction unit in the engine compartment    Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R.
Fuse F20 has blownMove on to Step 6
6DIESEL PREHEATING FUSE CHECKAll OKProblems encounteredOperation
Check the circuit for the protective fuse for the diesel preheating relay    See Test 5505AB CHECK DIESEL PREHEATING RELAY PROTECTIVE FUSEMove on to Step 7
7DIESEL PREHEATING RELAY CHECKAll OKProblems encounteredOperation
Check the diesel preheating relay circuitSee Test 5505AC CHECK DIESEL PREHEATING RELAYMove on to Step 8
8HIGH PRESSURE CHECKAll OKProblems encounteredOperation
Connect the diagnostic equipment to the diganostic socket. Check as described in the    See Test 1060OD INSPECTION OF THE HIGH PRESSURE FUEL CIRCUITthat the diesel pressure parameter is correctMove on to Step 16Pressure not correctMove on to Step 9
9LOW RETURN PRESSURE CHECKAll OKProblems encounteredOperation
Check as described in the    See Test 1060OA CHECK ON RETURN LOW PRESSURE FUEL CIRCUITthat the pressure in the return pipe to the tank is less than 1 barMove on to Step 10Pressure above the maximum limit: return pipe to the tank obstructedRepair the pipe, if necessary, replace it
10LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check as described in the    See Test 1060OB CHECK ON SUPPLY LOW PRESSURE FUEL CIRCUITthat the diesel pressure between the filter and the pressure pump is between 2 and 3 barMove on to Step 16Pressure below the minimum limit or above the maximum limitMove on to Step 11
11LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Constrict the return pipe from the pressure relief valve and carry out the test again    See Test 1060OB CHECK ON SUPPLY LOW PRESSURE FUEL CIRCUITwith the pipe constricted checking that the filter outlet pressure remains below 2 barMove on to Step 16Pressure rises to 5 bar: pressure regulator valve on filter mounting incorrectly adjustedReplace the valveSee Test 1044B16 FUEL SUPPLY/RETURN REGULATION VALVE ON FUEL FILTER - R.R.
12LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check that the difference in pressure upstream and downstream of the filter is less than 1 barMove on to Step 13Difference in pressure more than 1 barReplace the diesel filter cartridgeSee Test 1044B20 FUEL FILTER FILTERING ELEMENT - REPLACE
13LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check that the supply pump pressure at the filter inlet is more than 2.2 barMove on to Step 16Pressure below 2 barMove on to Step 14
14LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Measure the difference in pressure between the electrical pump outlet and the filter inlet checking that it is less than 0.3 barMove on to Step 15Difference in pressure more than 0.3 barReplace the pipe
15LOW SUPPLY PRESSURE CHECKAll OKProblems encounteredOperation
Check as described in the    See Test 1040AA SUPPLY VOLTAGE AND ABSORPTION CURRENT CHECKSthat the pump supply voltage is equal to 12V and that the current uptake is between 2 and 10 AMove on to Step 16Voltage lower than 12 VCheck electrical wiring    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
Current greater than 10 A: pump defectiveReplace the fuel pump
Current less than 2 A: pump obstructedReplace the fuel pumpand clean the fuel tank
16CHECK CORRECT OPERATIONAll OKProblems encounteredOperation
Replace the high pressure DRV valve    Op. 1060E50 PRESSURE REGULATOR ON PRESSURE PUMP - R.R.and check that the fault is no longer presentEnd of diagnosisFault persistsMove on to Step 17
17CHECK CORRECT OPERATIONAll OKProblems encounteredOperation
Replace the high pressure pump    Op. 1060E10 DIESEL INJECTION PRESSURE PUMP - R.R.and check that the fault is no longer presentEnd of diagnosisFault persistsMove on to Step 18
18CYLINDER COMPRESSION CHECKAll OKProblems encounteredOperation
Carry out the cylinder compression checkOp. 0520G15 COMPRESSION TEST - CHECK WITH EXAMINER WITH SPARK PLUGS/INJECTORS REMOVEDMove on to Step 20Cylinder compression insufficientMove on to Step 19
19CHECK ON CAUSE OF INSUFFICIENT COMPRESSIONAll OKProblems encounteredOperation
Carry out    Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKETto check the seal of the valves. Check the condition of the cylinders/flexible bandsMove on to Step 20Valve seal insufficientOverhaul the head    Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL
Cylinders/piston rings wornRestore the seal
20CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsReplace the engine management control unit    Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R