DEF SCR SYSTEM (DCU)
5–48
NO
YES
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 [DCU] and check if P0073 has been detected in [Fault Infor-
mation].
NO
YES
Go to step 9.
Repair or replace the harness.
Perform "After-inspection work" of INFOR-
MATION section.
9
Check the DTC detected (DCU)
Select
DCU
SAPH16F020400038
Has DTC P0073 been detected?
Replace the DCU.
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 ...
