|  | TEST RESULTS | 
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Carry out the MIL warning light active diagnosis | Move on to Step 2 | 1. No communication with the control unit2. Error detected in the control unit3. Warning light bulb failed activation | 1. Restore:- connection between the engine management control unit and the diagnostic connector.- Engine management control unit power supply    See E5030  PETROL ENGINES ELECTRONIC MANAGEMENT     See E5050  DIESEL ENGINES ELECTRONIC MANAGEMENT 2. Continue by following the instructions given by the diagnostic equipment.3. Move on to Step 2. | 
| 2 | CONNECTIONS CONTINUITY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the connection between the engine management control unit and the instrument panel. | Move on to Step 3 | Connections interrupted | Restore the correct connections. | 
| 3 | CHECK INSTRUMENT PANEL | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the operation of the instrument panel | End of diagnosis | Instrument panel defective | Replace the Instrument Panel    Op. 5560B10  CONTROL PANEL - R+R |