HYBRID/TROUBLE SHOOTING
3–780
5
Inspecting the
high-voltage J/
B (in the ECU
box)
1. Check the terminals of the
high-voltage J/B (in the ECU
box) for failing connection
(looseness, wear, or melting
damage).
•
BATT(+) terminal
•
BATT(-) terminal
•
INV(+) terminal
•
INV(-) terminal
Defect is
found: Go to
YES.
Defect is not
found: Go to
NO.
Retighten the
terminals.
Replace the
terminals if
abnormal wear
or melting
damage is
detected.
Go to step 6.
6
Inspecting the
DC high-volt-
age cable for
continuity 2
1. Remove the HV battery termi-
nal block cover.
2. Using the electrical tester, mea-
sure the resistance between
the terminals of high voltage J/
B (in the battery pack) and
high-voltage J/B (in the ECU
box).
<Measurement conditions>
Starter key: LOCK
<Tester connections>
High-voltage J/B (in battery pack)
–
High-voltage J/B (in ECU box)
BATT OUT(+) terminal
–
BATT(+) terminal
BATT OUT(-) terminal
–
BATT(-) terminal
<Standard values>
1
or less (With 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 7.
Replace the
DC high-volt-
age cable
between the
high-voltage J/
B (in the bat-
tery pack) and
the high-volt-
age J/B (in the
ECU box).
7
Inspecting the
SMR#1
1. Remove the SMR#1 from the
high-voltage J/B (in the battery
pack).
2. Using the electrical tester, mea-
sure the resistance between
the SMR#1 terminals.
<Measurement conditions>
—
<Tester connections>
SMR#1 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 8.
Replace the
SMR#1.
After replace-
ment, go to
step 8.
P3126 (TC12)
Abnormality in inverter system
(only during cranking)
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No
