HYBRID/TROUBLE SHOOTING
3–571
CHECKLIST: P0A2F (TC33)
P0A2F (TC33)
Abnormality in motor temperature
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No
1
Reading the
DTC [HINO-
DX]
1. Set the starter key to the
"LOCK" position.
2. Connect the diagnosis tool
(HINO-DX) to the vehicle.
3. Set the starter key to the "ON"
position.
4. In [Fault Information] on the
diagnosis tool screen, check if
any of the following DTC other
than P0A2F-33 is detected:
•
P0A2C, P0A2D
DTC other
than P0A2F-
33 is detected:
Go to YES.
DTC other
than P0A2F-
33 is not
detected: Go
to NO.
Perform trou-
bleshooting for
each of related
DTC.
Go to step 2.
2
Inspecting
resistance
between the
HV motor
phases
1. Set the starter key to the
"LOCK" position.
2. Disconnect the three-phase
cable (U, V, and W terminals)
from the HV motor.
3. Using the electrical tester, mea-
sure the resistance between
the HV motor terminals.
HINT
If the motor temperature is too
high, the resistance will largely
vary. Therefore, measure the
resistance at least 8 hours after
the vehicle has stopped.
<Measurement conditions>
Starter key: LOCK
(8 hours after the vehicle has
stopped)
<Tester connections>
HV motor
U-phase terminal –
V-phase terminal
U-phase terminal –
W-phase terminal
V-phase terminal –
W-phase terminal
<Standard values>
38.2 – 40.5 M
(30 – 15 °C {86 – 59 °F})
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.
Go to step 3.
Replace the
HV motor.
3
Inspecting the
HV motor
1. Set the starter key to the "ON"
position.
2. Check the operating sound of
HV motor.
Abnormal
noise is heard:
Go to YES.
Abnormal
noise is not
heard: Go to
NO.
Inspect the HV
motor and
repair or
replace if nec-
essary. After
repair or
replacement,
go to step 4.
Go to step 4.
