HYBRID/TROUBLE SHOOTING
3–112
4
Reproduction
check [HINO-
DX]
1. Connect all the connectors that
have been disconnected to
restore the system.
2. Connect the diagnosis tool
(HINO-DX) to the vehicle.
3. Set the starter key to the "ON"
position.
4. Clear the malfunction history.
5. In [Data Monitor] on the diagno-
sis tool screen, measure [HV
system coolant temperature].
<Measurement conditions>
Starter key: ON
<Tester connections>
HV system coolant temperature
<Standard values>
Equivalent to ambient tempera-
ture
The mea-
sured value is
within the
range of stan-
dard value: Go
to YES.
The mea-
sured value is
not within the
range of stan-
dard value: Go
to NO.
Replace the
HV ECU.
The inspec-
tion is com-
pleted.
(If no repair or
parts replace-
ment is per-
formed, there
may be an
improper con-
tact due to
connector dis-
connection.)
P0A03 (TC79)
Coolant temperature sensor High abnormality
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No
