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ELECTRIC POWER STEERING IEPS)
5.
SCS
Line
Short Circuit
Inspection
Tu
rn the ignition switch to OFF.
Disconnect the EPS ECU
21
P gray A
connect
o
r.
Check fo
r
the con tinuity between the Brown/red
wire
terminal
of the wire harness side and
bod
y
ground.
Connection:
Brown/
red!+)
-
Body
ground H
TOOL:
Pin
probe
(Male)
07ZAJ-RDJA 1'0
Is
there
continuity?
YES
- Short circuit in the Brown/red wi re
between the EPS ECU
21
P g ray A con-
nector and OLe.
NO
- GO TO
STEP
6.
6.
IG
1 line
Open Circuit
ins
pection
Discon
nect the EPS ECU
21 P
gray A connector.
With the ignition switch turned to ON, measu re
the voltage between the Black/green wi re termi-
nal
of
the wi re harness side of the EPS EeU
21
P
gray A
connect
or and
body ground.
Connection:
Black/
green(+I
-
Body
ground (-)
TOOL:
Pin
probe (Malel
07ZAJ-ROJA110
EPS
EeU 21
P A CONN ECTOR
(Viewed
from
terminal
side)
Brown/red
EPS ECU 21 P A CONNECTOR
(Viewed
from terminal side
I
Is there
battered volt8ge
?
V
25-36
NO
- Open ci
rcuit
in the Black/green wi re
between 10A IGN fuse and EPS ECU
21P gray A
connect or
YES
- GO TO
STE
P
7.
7.
EPS
ECU +B
line Open
Circuit
Inspection
Disconnect the EPS ECU
2P
C b rown connector.
With the ignition switch
tu
rned to ON, measure
the vol
t
age between the Red wi re te rminal of the
wire
harn
ess side of the EPS ECU 2P C brown
connector
and body ground.
Connection
:
Red(+)
-
Body ground (-I
Is
there
b8ttery
volt8ge
?
NO
- Open
circu
it in the Red wire
between
40A fuse an
d
EPS ECU
2P
C
brown
con-
nector
YES
- GO TO STEP 8.
Black/g
reen
EPS ECU 2P C CONNECTOR
(Viewed
from terminal side)
Red
(+)
1-1
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