| Observation condition | Crank angle sensor and inlet camshaft position sensor |
| Selector switch of special patterns pickup | × 1 |
| AC-GND-DC | DC |
| TIME/DIV. | 50 ms |
| VOLTS/DIV. | 5 V |
| Engine | Idle |
| Observation condition | Crank angle sensor and exhaust camshaft position sensor |
| Selector switch of special patterns pickup | × 1 |
| AC-GND-DC | DC |
| TIME/DIV. | 50 ms |
| VOLTS/DIV. | 5 V |
| Engine | Idle |
| note | At a maximum retardation the fall of the exhaust camshaft position sensor output wave retards approximately 20°. |
| Observation condition | Injector |
| Selector switch of special patterns pickup | × 10 |
| AC-GND-DC | DC |
| TIME/DIV. | 0.5 ms |
| VOLTS/DIV. | 1 V |
| Engine | Idle |
| Solenoid coil counter electromotive force is low or doesn't appear at all. | Short-circuit in the injector solenoid |
| Operation time | Consistent with the displayed time on M.U.T.-IIISE. |
| Force an excessive acceleration. | The drive period will once extend greatly, then will be settled to that corresponding to the engine speed. |
| Observation condition | Crank angle sensor and power transistor control signal |
| Selector switch of special patterns pickup | × 1 |
| AC-GND-DC | DC |
| TIME/DIV. | 50 ms |
| VOLTS/DIV. | 5 V |
| Engine | Idle |