HYBRID/TROUBLE SHOOTING
3–502
3
Inspecting the
three-phase
cable 2
1. Disconnect the three-phase
cable (U, V, and W terminals)
from the inverter.
2. Using the megohm tester (500
V range), measure the insula-
tion resistance between the ter-
minals of three-phase cable.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
Three-phase cable
U terminal – V terminal
V terminal – W terminal
W terminal – U terminal
<Standard values>
10 M
or more
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 4.
Replace the
three-phase
cable.
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. Perform a test run. (accelerate
and decelerate running for
approximately 1 hour).
6. In [Fault Information] on the
diagnosis tool screen, check if
P0A1B-AA is detected.
DTC P0A1B-
AA is
detected: Go
to YES.
DTC P0A1B-
AA is not
detected: Go
to NO.
Replace the
inverter.
The inspec-
tion is com-
pleted.
P0A1B (TCAA)
Abnormality in inverter (ECU system)
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No
