Typical Malfunction Thresholds
| Duration of following condition A or B is met | 0.5 seconds or more |
| A. Both of the following conditions are met | - |
| Water control valve target position | Beyond lower side stopper |
| Water control valve position | Less than -106.67° |
| B. Both of the following conditions are met | - |
| Water control valve target position | Beyond upper side stopper |
| Water control valve position | More than 220.07° |