HYBRID/TROUBLE SHOOTING
3–643
8
Inspecting the
SMR#2
1. Remove the SMR#2 from the
high-voltage J/B (in the battery
pack).
2. Using the electrical tester, mea-
sure the resistance between
the SMR#2 terminals.
<Measurement conditions>
—
<Tester connections>
SMR#2 terminal
(switch side)
3rd terminal
–
5th terminal
<Standard values>
10 k
or more (No continuity)
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
SMR#2.
After replace-
ment, go to
step 9.
9
Inspecting the
SMR#3
1. Remove the SMR#3 from the
high-voltage J/B (in the battery
pack).
2. Using the electrical tester, mea-
sure the resistance between
the SMR#3 terminals.
<Measurement conditions>
—
<Tester connections>
SMR#3 terminal
(switch side)
3rd terminal
–
5th terminal
<Standard values>
10 k
or more (No continuity)
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
SMR#3.
After replace-
ment, go to
step 10.
10
Checking the
high-voltage J/
B (in the bat-
tery pack) for
short circuit
1. Using the electrical tester, mea-
sure the resistance between
the terminals of high-voltage J/
B (in the battery pack) (with
SMR#1, 2, and 3 removed).
<Measurement conditions>
—
<Tester connections>
High-voltage J/B
(in battery pack)
BATT IN (-) terminal
–
BATT OUT
(-) terminal
BATT IN (+) terminal
–
BATT OUT
(+) terminal
<Standard values>
10 k
or more (No continuity)
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.
Replace the
high-voltage J/
B (in the bat-
tery pack).
P0A78 (TC13)
Abnormality in inverter system
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No