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ELECTRIC POWER STEERING (EPS)
25-30
4. Torque
Sensor
Line
And
Body
Ground
Short
Circuit
Inspection
Check for
continuity
between wire harness si de
r---~ E~ P~
S-E
~
C ~U
- 2-
'
~ P-
A
---' C~
O
-
N
-
N -E
-
C ~T
~
O ~R
' -------'
of the EPS EeU 21P gray A connector and body
ground.
(Viewed
from te rminal side)
Connectio
n:
Yellow/red~.:::~~rI~~tJ~r]
Yellow
/
redt+J
-
BodV
ground (-)
White/ blue
t+1
-
Body
ground H
TOOL:
Pin
probe IMale)
Is
there continuity?
YES
- GO TO STEP
5.
NO
- GO TO STEP
6.
07ZAJ-ROJAll0
5.
Torque Sensor Coil Short Circuit
Ins
pection
Disconnect the torque sensor 3P
connector.
Check for
continuity
between
the A and C term
i-
TORQUE SENSOR 3P CONNECTOR
nals of the torque sensor side 3P
connector
and
(Viewed of torque
sensor
side
connector)
body ground.
Connection:
A
Terminal
i+) -
Body
ground (-)
C
Terminal
1 +) -
Body ground (-)
Is
there
continuity7
YES
- Replace the EPS unit (To rque
sensor
coil
short
circuit)
(page
13·34).
NO
- Short circuit in the to rque
sensor
line
c
A
between the EPS ECU and torque
sen·
L _ _
__ _ _ _ ~_~~ _ _ _ _ _ _
_'
sor.
6.
Torque
Senso
r Line
Open Circuit
Inspection
Disconnect the
t
orque sensor 3P
connect
or.
Check
for
continuity
between the EPS ECU 21P
gray
A
connector
and torque sensor 3P connec·
tor terminals.
Connection
:
Yellow/red (+)
-
Yellow/red
1
-)
White
/
blue
(+1-
White
/
blu
e
H
Green
/
orange I+J
- Green/
orange
(.)
TOOL:
TORQUE SE NSOR 3P CONN ECTOR
(Viewed
from terminal
side)
Yellow/red
Green/orange
White/blue
Yellow/red
~a~!~~~~J
Pin
probe
(Male)
07ZAJ·RDJA110
White/b
lue
Is there
continuity?
EPS ECU
21
P
A
CONNECTOR
NO
-
Open
ci rcuit
in the torq ue sensor wire
L _ _ _ _
1V
_;_
e w
_ e_d_'_'"_m_'_e'_m_;n_
._
'
_
'
;
_ d_ e_
I
_ _ _ ---'
between the EPS ECU and torque
sen-
sor.
YES
- GO TO STEP 7.
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