HYBRID/TROUBLE SHOOTING
3–194
8
Inspecting the
insulation
resistance of
three-phase
cable 2
1. Disconnect the three-phase
cable (U, V, and W terminals)
from the relay terminal block.
2. Using the megohm tester (500
V range), measure the insula-
tion resistance between the ter-
minals of three-phase cable.
! CAUTION
Terminals must be insulated to
avoid contact.
<Measurement conditions>
Starter key: LOCK
(8 hours after the vehicle has
stopped)
<Tester connections>
Three-phase cable on the HV
motor side
U terminal
–
V terminal
V terminal
–
W terminal
W terminal
–
U terminal
<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.
Replace the
three-phase
cable on the
inverter side.
Replace the
three-phase
cable on the
HV motor side.
P0A90 (TC2A)
Abnormality in motor function
Inspection Procedure
Step
Action
Description
Judgement
Check
(Yes/No)
Yes
No
