| | Results of the tests |
| 1 | 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 5 | Impossible to connect
with the Instrument Panel control unit. | Continue to Step 2 |
| There are errors | Continue in accordance with the instructions for the
diagnostic equipment |
| 2 | ELECTRIC POWER SUPPLY CHECK | All OK | Problems met | Operation |
|---|
| Check
that the Instrument Panel Node electrical power supply is correct. | Continue to Step 3 | Positive and/or earth
electrical power supply faulty | Replace the component involved (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 between the Body Computer and the Instrument
Panel, in particular that each individual pin is correctly connected
See E4010 INSTRUMENT PANEL | Continue to Step 4 | 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 6 | Impossible to connect
with the Instrument Panel control unit. | Replace the instrument panel Op. 5560B11 |
| 5 | CHECK WITH ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
|---|
| With
the Examiner in the Instrument Panel Node ambient, check, in active
diagnosis, that the panel lighting is correctly activated | Continue to Step 6 | The panel lighting is
not activated | Replace the instrument panel Op. 5560B11 |
| 6 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Using
the Examiner, check, in the Body Computer Node ambient, that there
are no errors and the lighting parameter varies | Continue to Step 1 | Impossible to connect
with the Body Computer control unit | Continue to Step 7 |
| There are errors | Continue in accordance with the instructions for the
diagnostic equipment |
| The parameter values do not change | Continue to Step 10 |
| 7 | ELECTRIC POWER SUPPLY CHECK | All OK | Problems met | Operation |
|---|
| Check
that the Body Computer Node electrical power supply is correct | Continue to Step 8 | Positive and/or earth
electrical power supply fault. | Replace the defective component (if a fuse
is involved, search for the cause of the problem). |
| 8 | CHECK ON CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check
the continuity of the wiring between the control panel and the Body
Computer Node See E4010 INSTRUMENT PANEL Also check that the MODE +/- buttons are working properly | Continue to Step 9 | Electrical connections
not working | Restore damaged electrical connections. See E4010 INSTRUMENT PANEL |
| Buttons faulty | Replace the control panel Op. 7040A56 |
| 9 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Using
the Examiner, check the possibility of connecting with the Body
Computer Node | Continue to Step 6 | Impossible to connect
with the Body Computer control unit | Replace the Body Computer Node Op. 5505A32 |
| 10 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | The fault persists. | Continue to Step 1 |
