HYBRID/TROUBLE SHOOTING
3–74
1.
Set the starter key to the "LOCK" position.
2.
For the 12th terminal of PCU harness (24P) lower-side connector,
inspect the signal line of PCU wire harness (lower side) for short
circuit. (See "Inspecting the PCU harness signal line for short cir-
cuit.")
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. (The vehicle speed and the engine speed
remain at 25 km/h or more and 1500 r/min or more, respectively,
for 30 seconds or more.)
6.
In [Fault Information] on the diagnosis tool screen, check if P0617-
59 is detected.
NO
YES
7
Inspecting the signal line of PCU wire harness (lower side) for short circuit
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
PCU harness (24P)
lower-side con-
nector
12th terminal
–
Each signal line
10 k
or more
Is any defect found?
Replace the PCU wire harness (lower side).
Go to step 8.
8
Reproduction check [HINO-DX]
SHTS03ZZZ0300057
Is DTC P0617-59 detected?
Replace the HV ECU.
The inspection is completed.
(If no repair or parts replacement is per-
formed, there may be an improper contact
due to connector disconnection.)
