HYBRID/TROUBLE SHOOTING
3–214
1.
For the 2nd terminal of coolant temperature sensor 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 for approximately 30 minutes.
6.
In [Fault Information] on the diagnosis tool screen, check if P0A93-
7A is detected.
NO
YES
5
Inspecting the signal line of PCU wire harness (lower side) for short circuit
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Coolant tempera-
ture sensor con-
nector
2nd terminal
–
Each signal line
10 k
or more
Is any defect found?
Replace the PCU wire harness (lower side).
Go to step 6.
6
Reproduction check [HINO-DX]
SHTS03ZZZ0300143
Is DTC P0A93-7A detected?
Replace the HV ECU.
The inspection is completed.
