Diagnostic Method
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Measured turbine shaft speed | Less than the rpm values in Table below |
ENGINE SPEED SPECIFICATION
| Engine speed (rpm) | 3700 | 3727 | 3755 | 3782 | 3856 | 4019 | 4213 | 4456 |
| Measured turbine shaft speed (rpm) | 0 | 500 | 1000 | 1500 | 2000 | 2500 | 3000 | 3500 |
| Engine speed (rpm) | 4786 | 5213 | 5651 | 6101 | 6569 | 7044 | 7520 | |
| Measured turbine shaft speed (rpm) | 4000 | 4500 | 5000 | 5500 | 6000 | 6500 | 7000 | |
Time needed for diagnosis: 10 s
Malfunction indicator light illumination: Illuminates as soon as a malfunction occurs.