| | Test results |
| 0 | PRELIMINARY CHECK | All OK | Problems encountered | Operation |
|---|
| Press the button repeatedly to check whether the problem is the result of an incorrect setting and check whether the LED in the button changes status | End of diagnosis | 1.Incorrect CITY function setting2.The LED in the button does not change status3.The LED in the button comes on and then goes out | 1.Restore the correct function2.Move on to Step 63.Move on to Step 1 |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Using an Examiner check, in Instrument Panel mode, that there are no errors and that the parameters are present | Move on to Step 5 | 1. Impossible to connect with the Instrument Panel control unit2. Presence of errors | 1. Move on to Step 22. Continue following the instructions on the diagnostic instrument |
| 2 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
|---|
| Check the electricity supply to the Instrument Panel Node is correct. | Move on to Step 3 | Fault in positive electrical supply and/or earth | Replace defective component (in the case of a fuse, find out what caused it to blow) |
| 3 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems encountered | Operation |
|---|
| Check the wiring between the Body Computer and the Instrument Panel. In particular, check that each individual pin is properly connected See Wiring Diagram See E7045 ELECTRIC STEERING | Move on to Step 4 | Electrical connections not operational | Renew the damaged electrical connections |
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Using the Examiner, check the possibility of connecting with the Instrument Panel Node | Move on to Step 6 | Impossible to connect with the Instrument Panel control unit | Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R |
| 5 | ACTIVE DIAGNOSIS CHECK | All OK | Problems encountered | Operation |
|---|
| With the Examiner in the Instrument Panel Node ambient check that the CITY warning light is correctly activated/deactivated in Active Diagnosis | Move on to Step 6 | The warning light is not activated/deactivated | Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R |
| 6 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Using the Examiner in Body Computer Node mode check that there are no errors and that the CITY button status has changed. | Move on to Step 5 | 1. Impossible to connect to the Body Computer control unit2. Presence of errors3. The parameters do not change | 1. Move on to Step 72. Continue following the instructions on the diagnostic instrument3. Move on to Step 10 |
| 7 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems encountered | Operation |
|---|
| Check the electricity supply to the Body Computer Node is correct. | Move on to Step 8 | Fault in positive electrical supply and/or earth | Replace defective component (in the case of a fuse, find out what caused it to blow) |
| 8 | CONNECTIONS CHECK | All OK | Problems encountered | Operation |
|---|
| Check the continuity of the wiring between the CITY button and the Body Computer Node See Wiring Diagram See E7045 ELECTRIC STEERING | Move on to Step 9 | Electrical connections not operational | Renew the damaged electrical connections |
| 9 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Use an Examiner to check the possibility of connection to the Body Computer Node | Move on to Step 10 | Impossible to connect to the Body Computer control unit | Replace the Body Computer Node Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R. |
| 10 | CONNECTIONS CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the CITY button is working properly and that the wiring with with the Body Computer Node is correct See Wiring Diagram See E7045 ELECTRIC STEERING | End of diagnosis | 1. Button faulty2. Electrical wiring not working | 1. Replace the defective component2. Repair the damaged wiring |
