ENGINE CONTROL SYSTEM (J08E)
4–937
NO
YES
1.
Set the starter switch to the "LOCK" position.
2.
Replace NOx sensor 1 and NOx sensor 2 with new sensors.
3.
Set the starter switch to the "ON" position.
4.
Erase the trouble history.
5.
Execute a forced DPR regeneration.
6.
Select [Engine] and check if P207F has been detected in [Fault
Information].
NO
YES
Is operation normal?
Install the new injector on the muffler and
complete the check.
After installing the injector, idle the engine
(for about 10 min.) and on Hino-DX (Data
Monitor) verify that the DEF solution is stable
between 800 kPa {116 psi} and 1,051 kPa {152
psi}.
Perform "After-inspection work" of INFOR-
MATION section.
Replace the DEF pipe (pressure line).
After replacing the pipe, idle the engine (for
about 10 min.) and on Hino-DX (Data Moni-
tor) verify that the DEF solution is stable
between 800 kPa {116 psi} and 1,051 kPa {152
psi}.
Perform "After-inspection work" of INFOR-
MATION section.
10
Inspect the NOx sensor [Hino-DX]
Select
Engine
SAPH16F010300732
Has DTC P207F been detected?
Go to step 11.
Procedure completed.
(NOx sensor 1 and NOx sensor 2 are faulty.)
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 ...
