HYBRID/TROUBLE SHOOTING
3–287
10
Inspecting the
insulation
resistance of
frame wire
(between the
inverter and
the relay termi-
nal block)
1. Disconnect the frame wires of
20th, 21st, and 22nd terminals
from the relay terminal block.
2. Using the electrical tester, mea-
sure the insulation resistance
between the terminals of frame
wire and the ground.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
Frame wire
20th terminal
–
GND
21st terminal
–
GND
22nd terminal
–
GND
<Standard values>
10 M
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 11.
(For vehicles
with no relay
terminal block,
go to step 12.)
Replace the
relay terminal
block.
11
Inspecting the
insulation
resistance of
relay terminal
block
1. Using the electrical tester, mea-
sure the insulation resistance
between the relay terminal
block side terminals and the
ground.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
Relay terminal block
20th terminal
–
GND
21st terminal
–
GND
22nd terminal
–
GND
<Standard values>
10 M
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 12.
Replace the
relay terminal
block.
12
Inspecting the
insulation
resistance of
frame wire
(between the
inverter and
the HV motor)
1. Disconnect the frame wires of
23rd, 24th, and 25th terminals
from the HV motor terminal
block.
2. Using the electrical tester, mea-
sure the insulation resistance
between the terminals of frame
wire side and the ground.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
Frame wire
23rd terminal
–
GND
24th terminal
–
GND
25th terminal
–
GND
<Standard values>
10 M
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 13.
Replace the
frame wire.
P3009 (TC49)
Abnormality in leakage
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No