Hino Motors HINO 155 series Workshop Manual page 205

5. Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
• Cruise control does not work.
<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 stored after test drive.
8. Estimated failure factors
• Pre fuel filter: Clogging
• Common rail pressure sensor: Irregular contact (fault in power supply, fault in GND), fault in sensor
• Supply pump: Fault in SCV, fault in learned value
• Common rail: Pressure limiter opening valve
• Harness related: Irregular contact of crankshaft position sensor and camshaft position sensor, misconnection
ENGINE (J05E)/TROUBLESHOOTING 2–169