ENGINE CONTROL SYSTEM (J08E)
4–1164
INSPECTION PROCEDURE [sheet 1]: P244B
1.
Set the starter switch to the "LOCK" position.
2.
Connect the vehicle to Hino-DX.
3.
Set the starter switch to the "ON" position.
4.
Select [Engine] and check if any DTC other than P244B has been
detected in [Fault Information].
NO
YES
1.
Check [PM amount of piling up] from [DX Report] to read the DPR
soot accumulation quantity.
NOTICE
For the P244B code, there are two types of DTC detection condi-
tions. The inspection method depends on these conditions. Check
that the amount of soot deposited from Hino-DX report, and oper-
ate using the method that matches the detection condition.
•
If the amount of deposited soot is less than 5.0 g/L, check
"Sheet 1".
•
If the amount of deposited soot is more than 5.0 g/L, check
"Sheet 2".
NO
YES
1
Check the DTC detected (Engine ECU) [Hino-DX]
Select
Engine
SAPH16F010300900
Have DTCs other than P244B been detected
？
Go to diagnosis procedure of a related DTC.
Go to step 2.
2
Check the DPR soot accumulation quantity
Select
Engine
SAPH16F010300901
Is the amount of soot in the DPR less than 5.0 g/L?
Go to step 3.
Perform "Sheet 2" diagnosis.
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 ...
