P0007: Malfunction Of Fuel Cut Valve (High) - Hino Motors HINO 155 series Workshop Manual

P0007: Malfunction of fuel cut valve (High)

INFORMATION
1. Technical description
• –
<Description of malfunction>
• Fuel cut valve is not working properly.
• Possible magnetic valve failure or +B short-circuit or disconnection
2. DTC set condition
(1) DTC detection condition
• Fuel cut valve inactivity request is in progress.
• Starter key "ON".
• Battery voltage is in the range of 10 V to 16 V.
(2) Judgement criteria
• The condition that the fuel cut valve circuit voltage is 3 V or more remains for 3 seconds or more.
3. Reset condition
• Immediately after normal operation is restored.
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>
• DPR automatic regeneration may not be performed properly.
6. Pre-inspection work
• Check the battery voltage and make sure it is okay.
7. After-inspection work
• Clear all past DTCs.
• Check that no DTC is detected after test drive.
8. Estimated failure factors
• +B short-circuit or disconnection in exhaust brake drive signal line.
• Malfunction of exhaust brake magnetic valve.
• Malfunction of engine ECU.
ENGINE (J05E)/TROUBLESHOOTING
Fuel cut valve
EBP TYP 0.7A
FCV
(FCV)
Engine ECU
EB4
(FCV)
2–109
SHTS021270300100