ENGINE CONTROL SYSTEM (J08E)
4–1306
NO
YES
1.
Make sure there is no dirt or damage to the DEF quality sensor.
NO
YES
1.
Temporarily install the DEF quality sensor in the DEF tank and
mount the tank on the vehicle. (This makes it possible to connect
the DEF quality sensor connector.)
2.
Fill the tank with the standard concentration of DEF solution.
3.
Connect the vehicle to Hino-DX.
4.
Set the starter switch to the "ON" position.
5.
Select [Engine] and check if DTC P2BA9 has been detected in
[Fault Information].
NO
YES
Remove the foreign substances and clean
the DEF tank interior.
! CAUTION
Use fresh water or a diluted DEF solution to
clean the DEF tank interior.
Perform "After-inspection work" of INFOR-
MATION section.
Go to step 4.
4
Check the DEF quality sensor
Was any failure found?
Clean the DEF quality sensor.
Go to step 4.
Go to step 5.
5
Check the DTC detected (Engine ECU) [Hino-DX]
Select
Engine
SAPH16F010301028
Has DTC P2BA9 been detected?
Replace the DEF quality sensor.
Perform "After-inspection work" of INFOR-
MATION section.
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.
Summary of Contents for 238
Page 201: ...ENGINE CONTROL SYSTEM J08E 4 978 Harness disconnection or short circuit ...
Page 215: ...ENGINE CONTROL SYSTEM J08E 4 992 Malfunction of sensor 2 Malfunction of engine ECU ...
Page 301: ...ENGINE CONTROL SYSTEM J08E 4 1078 8 Estimated failure factors Malfunction of engine ECU ...
Page 709: ...DEF SCR SYSTEM DCU 5 143 8 Estimated failure factors DEF pump pressure sensor malfunction ...
