DEF SCR SYSTEM (DCU)
5–349
1.
Set the starter switch to the "LOCK" position.
2.
Replace with a new NOx sensor 2.
3.
Connect the vehicle to Hino-DX.
4.
Set the starter switch to the "ON" position.
5.
Erase the malfunction history and perform a DPR forced regenera-
tion.
6.
Select [DCU] and check if P2222 has been detected in [Fault Infor-
mation].
NO
YES
11
Check the NOx sensor 2 [Hino-DX]
Select
DCU
SAPH16F020400240
Has DTC P2222 been detected?
Replace the DCU. (After replacing, operate
DPR forced regeneration.)
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 ...
