| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Connect the Examiner diagnostic equipment and check, in the Instrument Panel Node ambient, that there are no errors and that the parameters are present. | Move on to Step 7 | 1. Impossible to connect to the NQS control unit. | 1. Move on to Step 2. |
| 2. Presence of errors | 2. Move on to Step 5. |
| 2 | ELECTRICAL POWER SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the electricity supply to the Instrument Panel Node is correct. See E4010 INSTRUMENT PANEL | Move on to Step 3 | Fault in electrical supply positive and/or earth. | Replace defective component (in the case of a fuse, find out what caused it to blow). |
| 3 | CHECK ELECTRICAL CONNECTIONS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the Instrument Panel Node electrical connections, particularl that each pin is correctly connected and inserted. | Move on to Step 4 | NQS electrical connections not operational. | Renew the damaged electrical connections |
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Use an Examiner to check the possibility of connection to the Instrument Panel Node | Move on to Step 5 | Impossible to connect with the control unit | Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R |
| 5 | CHECK ERRORS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check for the absence of the specific error with the Examiner in Instrument Panel Mode. | Move on to Step 7 | Internal NQS control unit error detected | Move on to Step 6. |
| 6 | ACTIVE DIAGNOSIS CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| With the Examiner in the Instrument Panel Node mode check that the function in question is correctly activated in Active Diagnosis. | Move on to Step 7 | The component in question is not activated. | Replace the Instrument Panel Op. 5560B10 CONTROL PANEL - R+R |
| 7 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the fault is no longer present | End of diagnosis | Fault persists | Continue as described by the diagnostic equipment |
