Hino Motors HINO 155 series Workshop Manual page 504

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5. Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
• Engine output is insufficient.
<Symptoms on the vehicle due to malfunction>
• Turbocharger noise or damage
• Abnormal consumption of DEF solution
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 stored after test drive.
8. Estimated failure factors
• Obstruction due to buildup of soot or foreign substances in inlet/outlet of EGR cooler gas passageway
• Obstruction due to buildup of soot or foreign substances in EGR valve.
• Malfunction of intake system
• Air flow sensor failure
• Boost pressure sensor failure
• Intake manifold temperature sensor failure
• SCV failure
• Injector failure
ENGINE (J05E)/TROUBLESHOOTING