| TEST RESULTS |
| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Turn the key to MAR and check that the initial check on the Engine Failure warning light takes place.NOTE: The Engine Failure warning light should come on and then go out when the engine is started.Then check:- that the inertia switch has cut in;- presence of fuel in the tank;- air intake circuit;- correct operation of the exhaust manifolds. | Move on to Step 1 | 1.The Engine Failure warning light does not carry out the initial test.2.Inertia switch cuts in.3.No fuel.4.Filter dirty or partly blocked.5.Drainage obstructed. | 1.Proceed as instructed in the See table K053 M.I.L. WARNING LIGHT OFF (INITIAL TEST NOT CARRIED OUT) / ENGINE DOES NOT START2.Restore correct operation.3.Add fuel to the tank.4.Replace the filter element.5.Restore the operation of the drainage ducts. |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| 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 unit.2. Parameters not plausible.3. No communication with the control unit. | 1. Continue following the instructions on the diagnostic equipment.2. Continue following the instructions on the diagnostic equipment.3. Restore the connection between the engine control unit and the diagnostic connector. |
| 2 | HIGH PRESSURE CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check that the diesel pressure parameter is correct. | End of diagnosis | Pressure not correct | Move on to Step 3 |
| 3 | INJECTOR WIRING CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| 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 4 | Wiring defective | Restore the correct wiring |
| 4 | INJECTOR CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| With the Examiner in active diagnosis check that the injectors are working properly. | Move on to Step 5 | Injectors stuck shut | Replace the injectors Op. 1060F10 FUEL INJECTORS - R.R. |
| 5 | INJECTOR SEAL CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the injectors are correctly sealed. | Move on to Step 6 | There is no seal for the injectors. | Replace the injectors Op. 1060F10 FUEL INJECTORS - R.R. |
| 6 | RPM SIGNAL CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the operation of the rpm sensor. | Move on to Step 7 | 1.Sensor defective.2.Wiring defective. | 1.Replace the sensor Op. 1060G20 ENGINE RPM SENSOR - R.R. 2.Restore the correct wiring. |
| 7 | TIMING SIGNAL CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the operation of the timing sensor. | Move on to Step 8 | 1. Sensor defective.2.Wiring defective. | 1.Replace the sensor Op. 1060G22 CAM ANGLE SENSOR - R.R 2.Restore the correct wiring. |
| 8 | CORRECT OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Replace the pressure pump and check that the fault is no longer present. | End of diagnosis | Fault persists: engine control unit defective. | Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R |
