Subaru 2009 IMPREZA, Service Manual

Page: 1833 / 3619

CS-16
AT Shift Lock Control System
CONTROL SYSTEMS
8 CHECK HARNESS BETWEEN BODY INTE-
GRATED UNIT AND “P” RANGE SWITCH.
1) Disconnect the connector from body inte-
grated unit.
2) Disconnect the connector of “P” range
switch.
3) Check for open circuit of harness, short cir-
cuit to battery or short circuit to ground between
the body integrated unit and “P” range switch.
Connector & terminal
(B281) No. 4 — (B117) No. 1:
Is the harness normal? Go to step 9 . Repair or replace
the harness
between the body
integrated unit and
the “P” range
switch.
9 CHECK HARNESS BETWEEN “P” RANGE
SWITCH AND CHASSIS GROUND.
Measure the resistance of harness between “P”
range switch and chassis ground.
Connector & terminal
(B117) No. 2 — Chassis ground:
Is it less than 10
:
? Go to step 10 . Repair the harness
between the “P”
range switch and
chassis ground.
10 CHECK P RANGE SWITCH.
Measure the resistance between “P” range
switch connector terminals.
Terminals
No. 2 — No. 1:
Is it less than 10
:
in the “P”
range, and 1 M
:
or more in
ranges other than “P”?
Replace the body
integrated unit. Replace the P
range switch.
11 CHECK STOP LIGHT SWITCH INPUT SIG-
NAL.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the voltage between the body inte-
grated unit connector terminal and chassis
ground.
Connector & terminal
(B280) No. 2 (+) — Chassis ground (–):
Is the voltage 9 V or more when
the brake pedal is depressed,
and less than approximately
1.5 V when not pressed? Replace the body
integrated unit. Check the stop
light system.
12 CHECK SHIFT LOCK SOLENOID OPERA-
TION.
Connect the battery to the shift lock solenoid
unit connector terminal, and operate the sole-
noid.
Terminals
No. 3 (+) — No. 4 (–):
Does the shift lock solenoid
operate normally? Check the lock
mechanism of the
select lever body. Replace the shift
lock solenoid.
Step Check Yes No