| | Test results |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Connect the Examiner diagnostic equipment and check, in Instrument Panel Node mode, that there are no errors and that the parameters are present. | Move on to Step 6 | 1. Impossible to connect to the NQS2. Presence of errors | 1. Move on to Step 22. Move on to Step 5 |
| 2 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the electrical power supply for the "Instrument Panel Node" is correct see wiring diagram See E4010 INSTRUMENT PANEL | Move on to Step 3 | Fault in positive electrical supply and/or earth | Renew and/or replace the defective component (in the case of a fuse, find out what caused it to blow). |
| 3 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems encountered | Operation |
|---|
| Check the electrical wiring/connections of the instrument Panel Node and those between node and steering wheel stalk. Check, in particular, that each pin is correctly connected and inserted in its seat | Move on to Step 4 | Electrical wiring and/or connections not working | Restore the damaged electrical wiring and/or connections |
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Use an Examiner to check the possibility of connection to the Instrument Panel Node | Move on to Step 5 | Impossible to connect with the control unit | Replace the instrument panel Op. 5560B10 CONTROL PANEL - R+R |
| 5 | ELECTRICAL CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check the correct operation of the following components:- Wiring between node and steering wheel stalk- Control keys, see wiring diagram See E4010 INSTRUMENT PANEL | Move on to Step 6 | 1. Wiring faulty2. Control panel not working properly | 1. Repair wiring. 2. Replace the control panel Op. 7040A56 SWITCH UNIT IN DASHBOARD - R.R. |
| 6 | 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 |
