Subaru 2002 IMPREZA Service Manual page 1564

AUTOMATIC TRANSMISSION
12.Inhibitor Switch
A: INSPECTION
When the driving condition or starter motor opera-
tion is erroneous, 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 continuity in ignition circuit does not
exist when the select lever is in "R", "D", "3", "2" and
"1" ranges.
NOTE:
If the inhibitor switch is inoperative, check for poor
contact of connector on transmission side.
Signal sent to TCM
Ignition circuit
Back-up light circuit
INHIBITOR SWITCH
Position Pin No.
P 4 — 3
R 4 — 2
N 4 — 1
D 4 — 8
3 4 — 7
2 4 — 6
1 4 — 5
P/N 12 — 11
R 10 — 9
B3H0016B
3) Check if there is continuity at equal points when
the select lever is turned 1.5° in both directions
from "N" range.
If there is continuity in one direction and the conti-
nuity in the other or if there is continuity at unequal
points, adjust the inhibitor switch. <Ref. to AT-28,
ADJUSTMENT, Inhibitor Switch.>
(A) Continuity does not exist.
(B) Continuity exists.
(C) 1.5°
4) Repeat the above checks. If there are abnormal-
ities, adjust the select cable. <Ref. to CS-10, AD-
JUSTMENT, Select Cable.>
B: ADJUSTMENT
1) Shift the select lever to "N" range.
2) Loosen the three inhibitor switch securing bolts.
3) Insert the ST as vertical as possible into the
holes in inhibitor switch lever and switch body.
ST 499267300
4) Tighten the three inhibitor switch bolts.
Tightening torque:
3.5 N·m (0.35 kgf-m, 2.5 ft-lb)
5) Repeat the above checks. If the inhibitor switch
is determined to be "faulty", replace it.
AT-28
B3M1586A
STOPPER PIN
B3M1027A