| | Results of the tests |
| 0 | OPERATION CHECK | All OK | Problems met | Operation |
|---|
| When the steering wheel buttons are activated, check that they are working properly, even when the steering wheel is turned. | End of diagnosis | One of the steering wheel controls faulty. | Replace the NVO |
| All of the steering wheel controls faulty. | Continue to Step 1 |
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect the Examiner diagnostic instrument and check, in the 'CAN network information' environment, whether the node is configured. | Continue to Step 2 | Impossible to connect with the control units. | Continue according to the instructions for the diagnostic equipment. |
| The NVO is not configured. | The vehicle CANNOT have this device fitted. |
| 2 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| With the Examiner check, in the 'CAN Network information' environment, that the node is not in 'Node Inactive'. | Continue to Step 4 | Node in Inactive fault. | Continue to Step 3 |
| 3 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems met | Operation |
|---|
| Check that the NVO electrical supply is correct See E3510 RADIO | Continue to Step 4 | Positive and/or earth electrical power supply fault. | Replace the defective component (if a fuse is involved, search for the cause of the problem). |
| 4 | CHECK ELECTRICAL CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check the condition of the system wiring and the electrical connections concerned, and in particular that each individual pin is correctly connected See E3510 RADIO | Continue to Step 5 | Electrical connections not working. | Restore damaged electrical connections. |
| Wiring (clock spring) faulty | Restore the correct operation of the wiring |
| 5 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace NVO |
| 6 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present | End of diagnosis | Fault persists | Continue to Step 2 |