HYBRID/TROUBLE SHOOTING
3–225
CHECKLIST: P0BCA (TC68)
P0BCA (TC68)
Abnormality in HV battery cooling fan revolving
number signal High
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
P060B-B2 is detected.
DTC P060B-
B2 is detected:
Go to YES.
DTC P060B-
B2 is not
detected: Go
to NO.
Perform trou-
bleshooting for
each of related
DTC.
Go to step 2.
2
Inspecting the
signal line of
PCU wire har-
ness (lower
side) for short
circuit
1. Disconnect the connectors of
PCU harness (16P) and HV
ECU1.
2. For the 12th terminal of PCU
harness (16P) lower-side con-
nector, inspect the signal line of
PCU wire harness (lower side)
for short circuit. (See "Inspect-
ing the PCU harness signal line
for short circuit.")
<Measurement conditions>
Starter key: LOCK
<Tester connections>
PCU harness (16P) lower-side
connector
12th terminal
–
Each signal line
<Standard values>
10 k
or more
Defect is
found: Go to
YES.
Defect is not
found: Go to
NO.
Replace the
PCU wire har-
ness (lower
side).
Go to step 3.
3
Inspecting the
signal line of
PCU wire har-
ness (upper
side) for short
circuit
1. Disconnect the connector of
HV battery cooling fan.
2. For the 12th terminal of PCU
harness (16P) upper-side con-
nector, inspect the signal line of
PCU wire harness (upper side)
for short circuit. (See "Inspect-
ing the PCU harness signal line
for short circuit.")
<Measurement conditions>
Starter key: LOCK
<Tester connections>
PCU harness (16P) upper-side
connector
12th terminal
–
Each signal line
<Standard values>
10 k
or more
Defect is
found: Go to
YES.
Defect is not
found: Go to
NO.
Replace the
PCU wire har-
ness (upper
side).
Replace the
HV battery
cooling fan.
After replace-
ment, go to
step 4.
