HYBRID/TROUBLE SHOOTING
3–320
5
Inspecting the
vehicle wire
harness
1. Disconnect the PCU harness
(24P) connector.
2. Using the electrical tester, mea-
sure the voltage between the
vehicle-side connector of PCU
harness (24P) and the ground.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
PCU harness (24P) vehicle-side
connector
3rd terminal
–
GND
<Standard values>
9 V or more
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 6.
Inspect the
power supply
circuit ([PCU-
B2 20A] fuse
and wire har-
ness).
6
Inspecting the
inverter start
relay
1. Set the starter key to the
"LOCK" position.
2. Remove the inverter start relay.
3. Using the electrical tester, mea-
sure the resistance between
the 3rd and 5th terminals of
inverter start relay. (With no
voltage applied)
4. Apply the voltage of 12 V
between the 1st and 2nd termi-
nals of inverter start relay and
measure the resistance
between the 3rd and 5th termi-
nals. (With voltage applied)
<Measurement conditions>
Starter key: ON
<Tester connections>
Inverter start relay
3rd terminal
–
5th terminal
<Standard values>
Without voltage: 10 k
or more
With voltage: less than 1
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 7.
Replace the
inverter start
relay.
P314D (TC81)
Abnormality in HV water pump revolution
number signal High
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No