| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check that alternator terminal D+ delivers a voltage of at least 12V | Move on to Step 1 | The alternator does not deliver 12V | Move on to Step 11 | 
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Using an Examiner check, in Instrument Panel Node mode, that there are no errors. | Move on to Step 5 | 1. Impossible to connect to the Instrument Panel control unit. | 1. Move on to Step 2. | 
| 2. Presence of errors | 2. Continue following the instructions on the diagnostic instrument | 
| 2 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the electricity supply to the Instrument Panel Node is correct. | Move on to Step 3 | Fault in positive electrical supply and/or earth | Replace defective component (in the case of a fuse, find out what caused it to blow). | 
| 3 | CHECK ELECTRICAL CONNECTIONS | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the wiring between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected. | Move on to Step 4 | Electrical connections not operational | Renew the damaged electrical connections | 
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Use an Examiner to check the possibility of connection to the Instrument Panel Node | Move on to Step 5 | Impossible to connect to the Instrument Panel | Replace the Instrument Panel    Op. 5560B10  CONTROL PANEL - R+R | 
| 5 | ACTIVE DIAGNOSIS CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | With the Examiner in Instrument Panel Node mode, check that the generator warning light is correctly activated in Active Diagnosis. | Move on to Step 6 | The alternator warning light is not activated | Replace the Instrument Panel    Op. 5560B10  CONTROL PANEL - R+R | 
| 6 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Using an Examiner check, in Body Computer Node mode, that there are no errors. | Move on to Step 7 | 1. Impossible to connect to the Body Computer control unit. | 1. Move on to Step 7. | 
| 2. Presence of errors | 2. Continue following the instructions on the diagnostic instrument | 
| 7 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the electricity supply to the Body Computer Node is correct. | Move on to Step 8 | Fault in positive electrical supply and/or earth | Replace defective component (in the case of a fuse, find out what caused it to blow). | 
| 8 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Use an Examiner to check the possibility of connection to the Body Computer Node | Move on to Step 9 | Impossible to connect to the Body Computer control unit. | Replace the Body Computer Node    Op. 5505A32  BODY COMPUTER - R.R | 
| 9 | ELECTRICAL CIRCUIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the continuity and insulation of the electrical circuit between the battery, starter motor and alternator    See E5010  STARTING AND RECHARING | Move on to Step 10 | Connections faulty | Restore the correct connections and replace the faulty components if necessary. | 
| 10 | CHECK BATTERY CHARGE | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the battery charge | Move on to Step 11 | 1.Battery flat | 1. Recharge the battery | 
| 2.Battery flat and cannot be recharged | 2. Replace the battery    Op. 5530B10  BATTERY - R+R | 
| 11 | ALTERNATOR CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check that the alternator operates correctly    See Test 5530AB Check alternator operation | End of diagnosis | Alternator operating faults | Replace the alternator.Op. 5530A14 |