| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS |
|---|
| 0 | PRELIMINARY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check whether the NIT operates when the switch is turned on or the key is turned to ON | Move on to Step | Does not work when the key is turned ON and/or the key is pressed | Move on to Step |
| 1 | FUSE CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the condition of the ignition-operated supply fuse and/or the direct supply fuse. | Move on to Step | Fuse blown | Eliminate short circuits and then change the fuse See E4091 CONNECT |
| 2 | ELECTRICAL SYSTEM CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the continuity of the wiring between battery and fuse input. | Move on to Step | Wiring broken | Restore wiring See E4091 CONNECT |
| 3 | ELECTRICAL SYSTEM CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the continuity of the wiring between battery and connections fitted to the NIT. | Move on to Step | Wiring broken | Restore wiring See E4091 CONNECT |
| 4 | ELECTRICAL SYSTEM CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the condition of the NIT supply fuse. | Move on to Step | Fuse blown | Replace the fuse See E4091 CONNECT |
| 5 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the Infotelematic node is working properly | | Fault persists | Replace the connect unit |