Subaru 2009 IMPREZA Service Manual page 1835

CONTROL SYSTEMS
Step
1 CHECK DELIVERY (TEST) MODE CONNEC-
TOR.
Check that the delivery (test) mode connector is
disconnected.
2 CHECK BODY INTEGRATED UNIT POWER
SUPPLY AND GROUND CIRCUIT.
<Ref. to CS-12, BODY INTEGRATED UNIT
POWER SUPPLY AND GROUND CIRCUIT,
INSPECTION, AT Shift Lock Control System.>
3 CHECK CURRENT DATA.
1) Connect the Subaru Select Monitor.
2) Shift the select lever to "P" range.
3) Turn the ignition switch to ON.
4) Display the current data display and display
"P SW". <Ref. to LAN(diag)-15, OPERATION,
Subaru Select Monitor.>
4 CHECK CURRENT DATA.
1) Select the current data display and display
the "Key-lock warning SW". <Ref. to LAN(diag)-
15, OPERATION, Subaru Select Monitor.>
2) Turn the ignition switch to OFF.
5 CHECK CURRENT DATA.
1) Turn the ignition switch to ON.
2) Select the current data display and display
"Key locking output". <Ref. to LAN(diag)-15,
OPERATION, Subaru Select Monitor.>
6 CHECK DTC OF BODY INTEGRATED UNIT.
1) Set the select lever to other than "P" range.
2) Check DTC of body integrated unit.
7 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:
8 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:
9 CHECK P RANGE SWITCH.
Measure the resistance between "P" range
switch connector terminals.
Terminals
No. 2 — No. 1:
AT Shift Lock Control System
Is the delivery (test) mode con-
nector disconnected?
Is there an abnormal condition? Follow the proce-
Is the display "ON" in the P
range and "OFF" in ranges
other than P?
Does the display change from
"ON" to "OFF" when the key is
inserted and removed?
Is the display "ON" in the P
range and "OFF" in ranges
other than P?
Is B1105 (key interlock circuit
malfunction) a current malfunc-
tion?
Is the harness normal?
Is it less than 10 ?
Is it less than 10
range, and 1 M or more in
ranges other than "P"?
CS-18
Check Yes
Go to step 2.
dures to inspect
and repair.
Go to step 4.
Go to step 5.
Go to step 12.
Follow the DTC to
perform inspection
and repair.
Go to step 8.
Go to step 9.
in the "P" Replace the body
integrated unit.
No
Disconnect the
delivery (test)
mode connector.
Go to step 3.
Go to step 7.
Go to step 10.
Go to step 6.
Go to step 12.
Repair or replace
the harness
between the body
integrated unit and
the "P" range
switch.
Repair the harness
between the "P"
range switch and
chassis ground.
Replace the P
range switch.