Hino 600, Руководство по ремонту, Страница: 21 / 451

GENERAL INTRODUCTION (CHASSIS) GN02–15
PRECAUTIONS
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PRECAUTIONS FOR ELECTRICAL SYSTEM
1. REMOVING THE BATTERY CABLE
! WARNING
•
Be sure to wait for at least ten minutes after the starter key is
turned to "LOCK" position before you disconnect the battery ter-
minals from the battery, as the vehicle data is recorded on ECU
and DCU starts working for the exhaust gas after treatment after
the starter key is turned to "LOCK" position. Otherwise, the vehi-
cle data will not be recorded on ECU properly and DCU will not
complete working properly, which may result in the malfunction
of DPR system and DEF-SCR system.
• The MIL (malfunction indicator light) may come on when the
starter key is turned to "ON" position again, even if you wait for
at least ten minutes before disconnecting the battery terminals
from the battery after the starter key is turned to "LOCK" posi-
tion. In this case, use HINO DX
Ⅱ
to clear the DTC (P204F and
P068A), to turn off the MIL and to conduct DPR regeneration
manually.
(1) Before electrical system work, remove the cable from the minus termi-
nal of the battery in order to avoid burning caused by short-circuiting.
(2) To remove the battery cable, fully release the nut to avoid damage to
the battery terminal. Never twist the terminal.
2. HANDLING OF ELECTRONIC PARTS
(1) Never give an impact to electronic parts of a computer or relay.
(2) Keep electronic parts away from high temperatures and humidity.
(3) Never splash water onto electronic parts in washing the vehicle.
(4) Do not remove the harness connector, electric component box, and
cover except for repair and inspection.
If removal is necessary, pay attention that water and foreign matters
do not attach or enter to the connector, terminals, electric component
box, and cover.
In restoration, make sure there is no attachment or entry of water and
foreign matters and mount them properly, because it causes degrada-
tion of waterproof function.
3. HANDLING OF WIRE HARNESS
(1) Perform marking on a clamp and a clip and secure then in original
position so that the wire harness will not interfere with the end and
acute angle section of the body and a bolt.
(2) To attach a part, take care not to bite the wire harness.
Loosen
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