| | Results of the tests |
| 0 | PRELIMINARY CHECK | All OK | Problems met | Operation |
|---|
| Press
the button repeatedly to check whether the problem is due to an
incorrect setting and check whether the LED in the button changes
state. | Continue to Step 11 | Incorrect CITY function
setting. | Restore
the correct function. |
| The LED in the button does not change state. | Continue to Step 6 |
| The LED in the button lights up and then goes out. | Continue to Step 1 |
| 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 E7045 ELECTRIC STEERING | Continue to Step 4 | Electrical connections
not working | Restore damaged electrical connections. See E7045 ELECTRIC STEERING |
| 4 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Using
the Examiner, check the possibliity of connecting 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 |
|---|
| Two-zone climate control system | With the Examiner in the Instrument Panel Node ambient,
check, in active diagnosis, that the CITY warning light is correctly
activated/deactivated | Continue to Step 6 | The warning light is not
activated/deactivated | Replace the instrument panel Op. 5560B11 |
| Two-zone climate control system | With the Examiner in the Instrument Panel Node ambient,
check, in active diagnosis, that all the segments in the LCD are
correctly activated/deactivated | Continue to Step 6 | Some of the segments are not activated/deactivated | 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 CITY button status varies | Continue to Step 1 | Impossible to connect
with the Body Computer control unit | Continue to Step 7 |
| Errors present. | 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 faulty | 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 CITY button and the Body
Computer Node See E7045 ELECTRIC STEERING | Continue to Step 9 | Electrical connections
not working | Restore damaged electrical connections. |
| 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 CONNECTIONS | All OK | Problems met | Operation |
|---|
| Check
that the CITY button and wiring with the Body Computer Node are
working properly See E7045 ELECTRIC STEERING | Continue to Step 11 | Button faulty | Replace faulty component |
| Electrical wiring not working | Renew the damaged wiring |
| 11 | 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 |