| Fault code No. | 30 |
| Symptom | Turnover of vehicle |
| Fail-safe action | Engine startup: Impossible |
| Riding: Impossible | |
| Diagnostic monitoring code No. | D:08 |
| Meter display | Lean angle sensor: 0.4-1.4 (upright) 3.7-4.4 (overturned) |
| Checking method | Remove the lean angle sensor and incline it more than 45 degrees. |
| Item/components and probable cause | Check or maintenance job | Sensor inspection procedure | |
| 1 | Turnover of vehicle | Raise the vehicle to the upright position | Place the main switch to the ON position (however, the engine cannot be restarted unless the main switch is first turned OFF). No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
| 2 | Sensor installation status | Check for a loose mounting, pinched mounting, or sensor mounting direction (up or down). Make sure that the mounting position is correct. | Place the main switch to the ON position (however, the engine cannot be restarted unless the main switch is first turned OFF). No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
| 3 | Lean angle sensor malfunction | Diagnostic mode (Code No. 08). Sensor inspection procedure. Refer to "Checking the lean angle sensor". In vertical position: 0.4-1.4 V When turned over: 3.7-4.4 V Indication is incorrect. → Replace the lean angle sensor. | Place the main switch to the ON position (however, the engine cannot be restarted unless the main switch is first turned OFF). No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
| 4 | ECU malfunction | Replace the ECU. |