HYBRID/TROUBLE SHOOTING
3–193
6
Reproduction
check [HINO-
DX]
1. Connect all the connectors that
have been disconnected to
restore the system. (Insert the
service plug last.)
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. Perform a test run. (Repeat the
following cycle 10 times or
more: Stop the vehicle.
Acceleration to 40 km/h.
Deceleration
Stop the vehi-
cle.)
6. In [Fault Information] on the
diagnosis tool screen, check if
P0A90-2A is detected.
DTC P0A90-
2A is detected:
Go to YES.
DTC P0A90-
2A is not
detected: Go
to NO.
Replace the
inverter.
The inspec-
tion is com-
pleted.
7
Inspecting the
continuity of
three-phase
cable 2
1. Disconnect the three-phase
cable (U, V, and W terminals)
from the relay terminal block.
2. Using the electrical tester, mea-
sure the resistance between
the terminals of both ends of
the three-phase cable on the
HV motor side.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
Three-phase cable on the HV
motor side
U terminal
–
U terminal
V terminal
–
V terminal
W terminal
–
W terminal
<Standard values>
Less than 1
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
three-phase
cable on the
inverter side.
Replace the
three-phase
cable on the
HV motor side.
P0A90 (TC2A)
Abnormality in motor function
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No
