HYBRID/TROUBLE SHOOTING
3–286
7
Inspecting the
insulation
resistance of
high-voltage J/
B (in the ECU
box)
1. Disconnect the 13th and 14th
terminals from the high-voltage
J/B (in the ECU box), and then
remove the frame wire.
2. Using the electrical tester, mea-
sure the insulation resistance
between the terminals of high-
voltage J/B (in the ECU box)
and the ground.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
High-voltage J/B (in the ECU box)
11th terminal
–
GND
12th 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 8.
Replace the
high-voltage J/
B (in the ECU
box).
8
Inspecting the
insulation
resistance of
frame wire
(between the
high-voltage J/
B (in the ECU
box) and the
inverter)
1. Disconnect the 15th and 16th
terminals from the inverter and
then remove the frame wire.
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
15th terminal
–
GND
16th 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 9.
Replace the
frame wire.
9
Inspecting the
insulation
resistance of
inverter
1. Disconnect the 17th, 18th, and
19th terminals from the inverter
and then remove the frame
wire.
2. Using the electrical tester, mea-
sure the insulation resistance
between the terminals of
inverter and the ground.
<Measurement conditions>
Starter key: LOCK
<Tester connections>
Inverter
15th terminal
–
GND
16th terminal
–
GND
17th terminal
–
GND
18th terminal
–
GND
19th terminal
–
GND
<Standard values>
3 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 10.
Replace the
inverter.
P3009 (TC49)
Abnormality in leakage
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No