Hino Motors HINO 155 series Workshop Manual page 553

13
Inspect the boost pressure sensor power supply system
E
VC
Do the measurements meet the standard value?
Go to step 14.
14
Check the DTC detected (Engine ECU)
Has DTC P041B been detected?
Replace the engine ECU.
Perform "After-inspection work" of INFOR-
MATION section.
ENGINE (J05E)/TROUBLESHOOTING
1. Disconnect the boost pressure sensor connector.
2. Set the starter key to the "ON" position.
3. Use the electrical tester to measure the voltage between the termi-
nals of the boost pressure sensor vehicle side connector.
Starter key: ON
SHTS021270300479
YES
Perform engine warm up. (engine coolant temperature: 80 C {176
1.
F} or more)
2. Stop the engine and set the starter key to the "LOCK" position.
Connect the vehicle to HINO DX Ⅱ .
3.
4. Set the starter key to the "ON" position.
5. Select [Engine] and check if P041B has been detected.
SHTS021270300480
YES
Measurement Tester
conditions connections
Boost pressure
sensor vehicle
side connector
VC – E
Inspect the sensor power supply outlet volt-
age of the wire harness and engine ECU.
Perform "After-inspection work" of INFOR-
MATION section.
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.
2–517
Standard values
4.75 – 5.25 V
NO
NO