Hino 195h Series, Руководство по ремонту

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HYBRID/TROUBLE SHOOTING 3–55
CHECKLIST: P0501 (TC5B)
P0501 (TC5B)
Abnormality in characteristics of
vehicle speed sensor
Inspection Procedure
Step Action Description Judgement
Check
(Yes/No)
Yes No
1
Inspecting the
ABS ECU
[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. Select [Brake] on the diagnosis
tool screen.
5. In [Fault Information], check if
any DTC related to the vehicle
speed sensor system is
detected.
DTC is
detected from
the ABS: Go to
YES.
DTC is not
detected from
the ABS: Go to
NO.
Perform trou-
bleshooting for
each DTC of
ABS ECU.
Go to step 2.
2
Inspecting the
signal line of
PCU wire har-
ness (lower
side) for short
circuit
1. Set the starter key to the
"LOCK" position.
2. Disconnect the HV ECU3 con-
nector.
3. For the 18th terminal of PCU
harness (24P) 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 (24P) lower-side
connector
18th 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
engine ECU
[HINO-DX]
1. Set the starter key to the "ON"
position.
2. Select [Engine] on the diagno-
sis tool screen.
3. Select [Data Monitor] and mon-
itor [Vehicle speed] while driv-
ing at the speed of 20 km/h.
<Measurement conditions>
•
Starter key: ON
• Drive at the vehicle speed of 20
km/h.
<Measured item>
Vehicle speed
18th terminal
–
Each signal line
<Standard values>
The monitored vehicle speed is
approximately the same as the
driving speed.
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.
Inspect the
vehicle-side
wire harness
related to vehi-
cle speed sig-
nals and the
combination
meter.