Subaru 2009 IMPREZA Service Manual page 1904

AUTOMATIC TRANSMISSION
13.Inhibitor Switch
A: INSPECTION
When the driving condition or starter motor opera-
tion is improper, first check the shift linkage for im-
proper operation. If the shift linkage is functioning
properly, check the inhibitor switch.
1) Disconnect the inhibitor switch connector.
2) Check continuity in inhibitor switch circuits with
the select lever moved to each position.
NOTE:
• Also check that there is no continuity in the igni-
tion circuit when the select lever is in the "R" and
"D" ranges.
• If the inhibitor switch does not operate, check for
poor contact of the connector on transmission side.
Signal sent to TCM
Ignition circuit
Back-up light circuit
(A)
( 4) (3) (2 ) ( 1 )
( 8)
( 7) (6 )
(12) (11)
(10)
(A) Inhibitor switch connector
Inhibitor Switch
Range Pin No.
P 4 — 3
R 4 — 2
N 4 — 1
D 4 — 8
P/N 12 — 11
R 10 — 9
(5 )
( 9 )
AT-00030
3) Check that there is continuity at equal points
when the select lever is moved 1.5° in both direc-
tions from the "N" range.
If there is continuity in only one direction or in other
points, adjust the inhibitor switch. <Ref. to 4AT-48,
ADJUSTMENT, Inhibitor Switch.>
(A) Continuity does not exist.
(B) Continuity exists.
(C) 1.5°
4) Repeat the above inspection in other gear rang-
es. If there are abnormalities, adjust the select ca-
ble. <Ref. to CS-27, ADJUSTMENT, Select
Cable.>
B: ADJUSTMENT
1) Set the select lever to "N" range.
2) Loosen the two bolts holding the inhibitor switch.
3) Insert the ST as vertical as possible into the
holes of the shifter arm and switch body.
ST 499267300
4) Tighten the two bolts holding the inhibitor switch.
Tightening torque:
5 N·m (0.5 kgf-m, 3.7 ft-lb)
5) Repeat the inspection of the inhibitor switch. If
the inhibitor switch is determined to be "faulty", re-
place it.
4AT-48
(C)
(A)
(B)
(A)
AT-04578
STOPPER PIN
S T
AT-04866