HYBRID/TROUBLE SHOOTING
3–668
1.
Disconnect the three-phase cable (U, V, and W terminals) from the
inverter.
2.
Using the megohm tester (500 V range), measure the insulation
resistance between the terminals of three-phase cable.
! CAUTION
Terminals must be insulated to avoid contact.
NO
YES
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 approxi-
mately 1 hour).
6.
In [Fault Information] on the diagnosis tool screen, check if P0A78-
15 is detected.
NO
YES
4
Inspecting the three-phase cable 3
7
8
9
Megohmmeter
Megohmmeter
SHTS03ZZZ0300435
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Three-phase cable
U terminal
–
V terminal
V terminal
–
W terminal
W terminal
–
U terminal
10 M
or more
Is the measured value within the range of standard value?
Go to step 5.
Replace the three-phase cable.
5
Reproduction check [HINO-DX]
SHTS03ZZZ0300436
Is DTC P0A78-15 detected?
Replace the inverter.
The inspection is completed.
