DEF SCR SYSTEM (DCU)
5–127
INSPECTION PROCEDURE: P2047
NOTICE
Prepare a beaker or similar, plus a larger measuring vessel for
measuring the DEF to be injected, before perform this inspection.
(If the vessel is small, there is dispersion at the time of injection
from the injector, and the measuring quantity decreases.)
1.
Set the starter switch to the "LOCK" position.
2.
Remove the DEF injector from the muffler.
3.
Set the starter switch to the "ON" position.
4.
Select [DCU].
5.
Select [Check functions] on Hino-DX menu and check the opera-
tion of the DEF injector.
<Inspection procedure>
(1) Select [Check functions].
(2) Select [DEF addition test].
(3) Perform addition test as instructed on the Hino-DX screen.
(Perform all three patterns)
NOTICE
When the DEF tank temperature is -5
C (23
F) or lower, perform
warm-up to raise it to 10
C (50
F) or higher.
NO
YES
1
Inspect DEF injector (1) [Hino-DX]
(3)
(1)
(2)
SAPH16F020400082
Is operation normal?
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.
Replace the DEF injector. (Perform DPR
forced regeneration after replacement.)
Perform "After-inspection work" of INFOR-
MATION section.
Содержание 238
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