| | Results of the tests |
| 1 | PRELIMINARY CHECK | All OK | Problems met | Operation |
|---|
| Press
the button repeatedly to check whether the LED in the button changes
state. | Continue to Step 2 | The LED in the button
does not change state. | Continue as described in See
table K16 |
| 2 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Using
the Examiner check, in the Instrument Panel Node ambient, that there
are no errors and the following parameters are present. | Continue to Step 6 | Impossible to connect
with the Instrument Panel control unit | Continue to Step 3 |
| Impossible to connect with the Instrument Panel control
unit | Continue according to the instructions for the diagnostic
equipment. |
| 3 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems met | Operation |
|---|
| Check
that the Instrument Panel Node electrical power supply is correct. | 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 electrical connections between the Body Computer and the Instrument
Panel, in particular that each individual pin is correctly connected. | Continue to Step 5 | Electrical connections
not working. | Restore damaged electrical connections. |
| 5 | 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 7 | Impossible to connect
with the Instrument Panel control unit. | Replace the Instrument Panel
Node control unit. |
| 6 | CHECK WITH ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
|---|
| With
the Examiner in Instrument Panel Node ambient, check, in Active
Diagnosis, that the driving warning light is correctly activated | Continue to Step 7 | The component in question
is not activated. | Replace the Instrument Panel Node control unit |
| 7 | 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 1 |