| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS | 
|---|
| 0 | PRELIMINARY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the following with the engine running: no fault message is displayed
 | Move on to Step | Faults found | Move on to Step | 
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Connect the Examiner diagnostic equipment to the diagnostic connector and check the following at the CAN: no control unit not activated;that there are no faulty control units;no control unit with faulty CAN line;
 | Move on to Step | 1. Faults on CAN network | 1. Continue following the instructions for the diagnostic equipment | 
| 2. Errors on instrument panel node | Move on to Step | 
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Keeping the Examiner diagnostic equipment connected to the diagnostic connector, check the following at the instrument panel node:in errors ambient | Move on to Step | Presence of errors or failed dialogue with the diagnostic equipment | Continue following the instructions for the diagnostic equipment | 
| 3 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Keeping the Examiner connected, check the following on the instrument panel node:in active diagnosis ambient the operation of the rpm indicator
 | Move on to Step | Rev counter not working | Replace instrument panel    See in Op.   5560B11  ANALOGUE CONTROL PANEL - R.R. or Replace | 
| 4 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check that the fault is no longer present |  |  |  |