| | Results of the tests |
| 1 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect
the Examiner diagnostic equipment and check, in the Instrument Panel
Node (NQS) ambient, that there are no errors and the following parameters
are present. | Continue to Step 7 | Impossible to connect
with the NQS control unit | Continue to Step 2 |
| There are errors | Continue to Step 5 |
| 2 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems met | Operation |
|---|
| Check
that the Instrument Panel Node electrical power supply is correct. See E4010 INSTRUMENT PANEL | Continue to Step 3 | Positive and/or earth
electrical power supply faulty. | Replace the defective component (if a fuse
is involved, search for the cause of the problem). |
| 3 | CHECK ELECTRICAL CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check
the electrical connections for the Instrument Panel Node, in particular
making sure that each individual pin is correctly connected and inserted
in its housing. | Continue to Step 4 | NQS electrical connections
not working. | Restore damaged electrical connections. |
| 4 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Using
the Examiner, check whether it is possible to connect with the Instrument
Panel Node. | Continue to Step 1 | Impossible to connect
with the control unit. | Replace the Instrument Panel Node. Op. 5560B11 |
| 5 | ERRORS CHECK | All OK | Problems met | Operation |
|---|
| With
the Examiner in Instrument Panel Node ambient, check that the specific
error is not present. | Continue to Step 7 | Error detected inside
the NQS control unit. | Continue to Step 6 |
| 6 | CHECK WITH ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
|---|
| With
the Examiner in the Instrument Panel Node ambient, check, in Active
Diagnosis, that the function in question is correctly activated.
| Continue to Step 7 | The component in question
is not activated. | Replace the Instrument Panel Node control unit Op. 5560B11 |
| 7 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Continue as instructed in
See table H25 |