|  |  | Test results | 
| 1 | ACTIVE DIAGNOSIS CHECK | All OK | Problems encountered | Operation | 
|---|
|  | With the Examiner in Instrument Panel Node mode, check that the instrument panel light is correctly activated in Active Diagnosis | Move on to Step 2 | The panel lighting does not activate | Replace the Instrument Panel    Op. 5560B10  CONTROL PANEL - R+R | 
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation | 
|---|
|  | Use an Examiner to check the possibility of connection to the Body Computer Node | Move on to Step 3 | Impossible to connect to the Body Computer control unit | Replace the Body Computer Node    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R. | 
| 3 | CORRECT OPERATION CHECK | All OK | Problems encountered | Operation | 
|---|
|  | Check that the fault is no longer present | End of diagnosis | The fault persists | Contact technical service for further information on the problem |