| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| Turn the key ON and check that the initial check on the MIL and VEHICLE PROTECTION warning lights takes place | The MIL warning light should come on and then go out when the engine is started up, whilst the CODE warning light should come on for about 4 seconds and then go out |
Then check: - that the FUEL CUT OFF activated message is not present in the instrument panel
- presence of fuel in the tank;
- air intake circuit;
- correct operation of the exhaust manifolds.
| Move on to Step 1 | 1. The VEHICLE PROTECTION warning light stays on2. The MIL warning light does not carry out the initial test3. Presence of FUEL CUT OFF activated message4. Lack of fuel5. Filter dirty or partly blocked6. Exhaust blocked | 1. Continue following the instructions in the TableSee K052 ENGINE OIL LEVEL AND TEMPERATURE SENSOR2. Continue following the instructions in the TableSee K053 LPG PRESSURE SENSOR3. Carry out theSee Test 4. Add fuel to the tank5. Replace the filter element Op. 1044B10 FUEL FILTER ASSEMBLY - R + R OR REPLACE 6. Restore exhaust manifolds to working order |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check: - that there are no errors in the control unit;
- parameter plausibility
| Move on to Step 2 | 1. Error detected in the control unit2. Parameters not plausible3. No communication with the control unit | 1. Continue following the instructions on the diagnostic equipment2. Continue following the instructions on the diagnostic equipment3. Restore the connection between the engine control unit and the diagnostic connector |
| 2 | RPM SENSOR CHECK | All OK | Problems encountered | Operation |
|---|
| Check correct operation of the rpm sensor by carrying out the See Test 1060GI ENGINE SPEED CHECKCheck the continuity/insulation of the wiring between the sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT Check that the sensor is correctly positioned | Move on to Step 3 | 1. Rpm sensor defective2. Wiring defective3. Rpm sensor not correctly positioned | 1. Replace the sensor Op. 1060G20 ENGINE RPM SENSOR - R.R. 2. Restore correct wiring3. Position the sensor correctly |
| 3 | TIMING SENSOR CHECK | All OK | Problems encountered | Operation |
|---|
| Check correct operation of the timing sensor by carrying out the See Test 1060GC TIMING SENSOR OPERATION CHECK Check the continuity/insulation of the wiring between the sensor and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT Check that the sensor is correctly positioned | Move on to Step 4 | 1. Timing sensor defective2. Wiring defective | 1. Replace the timing sensor Op. 1060G22 CAM ANGLE SENSOR - R.R 2. Restore correct wiring |
| 4 | DIESEL HIGH PRESSURE CHECK | All OK | Problems encountered | Operation |
|---|
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check that the diesel pressure parameter is correct by carrying out the See Test 1060OD HIGH PRESSURE FUEL CIRCUIT CHECK | Move on to Step 7 | Pressure not correct | Move on to Step 5 |
| 5 | DIESEL LOW PRESSURE CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the diesel pressure is correct by carrying out the See Test 1060OB LOW FUEL DELIVERY PRESSURE CIRCUIT CHECK | Move on to Step 7 | Pressure not correct | Move on to Step 6 |
| 6 | ELECTRIC PUMP CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the low pressure electric pump is working properly | Move on to Step 7 | 1. Electric pump defective2. Pump wiring broken | 1. Replace the electric pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R 2. Restore correct wiring See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 7 | INJECTOR WIRING CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the electrical connection between the engine management control unit and the injectors is correct See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT | Move on to Step 8 | Wiring defective | Restore correct wiring |
| 8 | INJECTOR CHECK | All OK | Problems encountered | Operation |
|---|
| With the Examiner in active diagnosis check that the injectors are working properly by carrying out the See Test 1060FA INJECTOR OPERATION CHECK | Move on to Step 9 | Injectors stuck shut | Replace the injectorsOp. 1060F10 FUEL INJECTORS - R.R. |
| 9 | INJECTOR SEAL CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the injectors are not leaking by carrying out the See Test 1060OC INJECTOR SEAL TEST | Move on to Step 10 | There is no seal for the injectors | Replace the injectorsOp. 1060F10 |
| 10 | ENGINE MANAGEMENT CONTROL UNIT OPERATION CHECK | All OK | Problems encountered | Operation |
|---|
| Check on correct operation of engine management control unit | Move on to Step 11 | Engine management control unit defective | Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R |
| 11 | CHECK ON CORRECT OPERATION OF HIGH PRESSURE PUMP | All OK | Problems encountered | Operation |
|---|
| Check on correct operation of high pressure pump | End of diagnosis | High pressure pump defective | Replace the high pressure pump Op. 1060E10 DIESEL INJECTION PRESSURE PUMP - R.R. |