ENGINE CONTROL SYSTEM (J08E)
4–1075
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.
Erase the trouble history.
5.
Set the starter switch to the "LOCK" position.
6.
Check that the engine ECU main relay is OFF on Hino-DX menu.
(This cuts off the communication between Hino-DX and the engine
ECU.)
7.
Set the starter switch to the "ON" position.
8.
Select [Engine] and check if P2227 has been detected in [Fault
Information].
NO
YES
3
Check the DTC detected (Engine ECU) 2 [Hino-DX]
Select
Engine
When communicat-
ion with the engine
ECU is interrupted
while the engine
ECU is connected
to the Hino-DX,
the connection
symbol at the left
bottom of the Hino-
DX screen (figure
on the left) becom-
es disconnected.
SAPH16F010300828
Has DTC P2227 been detected?
Replace the engine ECU.
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 ...
