Hino Motors HINO 155 series Workshop Manual page 319

2. DTC set condition
(1) DTC detection condition
• The vehicle speed is 0 km/h.
• A change in the engine revolution is 312 r/min/sec or less.
• A change in the fuel injection quantity is 312 mm
• A change in the fuel pressure is 93.7 MPa/sec or less.
• The target operating current of the supply pump is not less than 1500 mA but not more than 1800 mA.
(2) Judgement criteria
• A change in the operating current of the supply pump upon post injection falls below the specified value.
• Malfunction determination time: 10 seconds
3. Reset condition
• Immediately after normal status is resumed
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: OFF
5. Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
• –
<Symptoms on the vehicle due to malfunction>
• –
6. Pre-inspection work
• Check that the battery voltage is in the normal range.
7. After-inspection work
• Clear all past DTCs.
• Check that no DTC is detected after test drive.
8. Estimated failure factors
• Fuel injection pipe: Breakage, crack, fuel leakage
• Cylinder: Compression leakage
• Common rail: Malfunction of flow damper
• Injector: Clogging, keeping injecting
ENGINE (J05E)/TROUBLESHOOTING
3
/st/sec or less.
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