SL-18
Keyless Entry System
SECURITY AND LOCKS
6. CHECK DOOR SWITCH
Step Check Yes No
1CHECK DOOR SWITCH CIRCUIT.
Measure the voltage between the body inte-
grated unit harness connector terminal and
chassis ground.
Connector & terminal
Front door RH:
(i84) No. 32 (+) — Chassis ground (–):
Front door LH:
(i84) No. 19 (+) — Chassis ground (–):
Rear door RH:
(i84) No. 18 (+) — Chassis ground (–):
Rear door LH:
(i84) No. 31 (+) — Chassis ground (–):
Rear gate:
(i84) No. 17 (+) — Chassis ground (–):
Is the voltage 0 V when each
door or rear gate is opened?
Go to step 2.Go to step 3.
2CHECK DOOR SWITCH CIRCUIT.
Measure the voltage between the body inte-
grated unit harness connector terminal and
chassis ground.
Connector & terminal
Front door RH:
(i84) No. 32 (+) — Chassis ground (–):
Front door LH:
(i84) No. 19 (+) — Chassis ground (–):
Rear door RH:
(i84) No. 18 (+) — Chassis ground (–):
Rear door LH:
(i84) No. 31 (+) — Chassis ground (–):
Rear gate:
(i84) No. 17 (+) — Chassis ground (–):
Is the voltage more than 10 V
when each door or rear gate is
closed?
The door switch is
OK.
Go to step 3.
3CHECK DOOR SWITCH.
1) Disconnect the door switch harness con-
nector.
2) Measure the resistance between door
switch terminals.
Connector & terminal
(R12) Front RH door switch:
(R9) Front LH door switch:
(R16) Rear RH door switch:
(R22) Rear LH door switch:
No. 1 — No. 3:
Rear gate latch switch: (D140) No. 3 —
No. 4:
Is the resistance more than 1
MΩ when door switch is
pushed?
Go to step 4.Replace the door
switch.
4CHECK DOOR SWITCH.
Measure the resistance between door switch
terminals.
Connector & terminal
(R12) Front RH door switch:
(R9) Front LH door switch:
(R16) Rear RH door switch:
(R22) Rear LH door switch:
No. 1 — No. 3:
Rear gate latch switch: (D140) No. 3 —
No. 4:
Is the resistance less than 1 Ω
when door switch is released?
Check the harness
for open or shor t
between body inte-
grated unit and
door switch.
Replace the door
switch.
SL-19
Keyless Entry System
SECURITY AND LOCKS
7. CHECK KEY WARNING SWITCH
Step Check Yes No
1CHECK FUSE.
Remove and visually check the fuse No. 14 (in
the main fuse box).
Is the fuse blown out? Replace the fuse
with a new one.
Go to step 2.
2CHECK KEY WARNING SWITCH CIRCUIT.
1) Disconnect the harness connector of body
integrated unit.
2) Insert the key into ignition switch. (LOCK
position)
3) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B281) No. 7 (+) — Chassis ground (– ):
Is the voltage more than 10 V? Go to step 3.Go to step 4.
3CHECK KEY WARNING SWITCH CIRCUIT.
1) Remove the key from ignition switch.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B281) No. 7 (+) — Chassis ground (– ):
Is the voltage 0 V? The key warning
switch is OK.
Go to step 4.
4 CHECK KEY WARNING SWITCH.
1) Disconnect the key warning switch harness
connector.
2) Insert the key into ignition switch. (LOCK
position)
3) Measure the resistance between key warn-
ing switch terminals.
Connector & terminal
(B350) No. 3 — No. 4:
Is the resistance less than 1
Ω?
Go to step 5.Replace the key
warning switch.
5 CHECK KEY WARNING SWITCH.
1) Remove the key from ignition switch.
2) Measure the resistance between key warn-
ing switch terminals.
Connector & terminal
(B350) No. 3 — No. 4:
Is the resistance more than 1
MΩ?
Check the follow-
ing:
•Harness for
open circuits
and shorts
between the
key warning
switch and fuse
•Harness for
open or short
between the
body integrated
unit and key
warning switch
Replace the key
warning switch.
SL-20
Keyless Entry System
SECURITY AND LOCKS
8. CHECK ROOM LIGHT OPERATION
9. CHECK HAZARD LIGHT OPERATION
Step Check Yes No
1CHECK ROOM LIGHT OPERATION.
Make sure the room light illuminates when the
room light switch is turned to ON.
Does the room light illuminate? Go to step 2.Check the room
light circuit.
2CHECK HARNESS BETWEEN ROOM LIGHT
AND BODY INTEGRATED UNIT.
1) Disconnect the body integrated unit har-
ness connector and room light harness con-
nector.
2) Measure the resistance between the body
integrated unit harness connector terminal and
room light harness connector terminal.
Connector & terminal
(B280) No. 3 — (R52) No. 2:
Is the resistance less than 10
Ω?
The room light
operation circuit is
OK.
Check the harness
for open or shor t
between body inte-
grated unit and
room light.
Step Check Yes No
1CHECK HAZARD LIGHT OPERATION.
Make sure the hazard light blinks when hazard
switch is turned to ON.
Does the hazard light blink? Go to step 2.Check the hazard
light circuit.
2CHECK OUTPUT TO HAZARD LIGHT.
1) Turn the ignition switch to OFF.
2) Disconnect the key warning switch harness
connector.
3) Connect the Subaru Select Monitor to data
link connector.
4) Turn the ignition switch to ON.
5) Select {Integ. unit} from main menu.
6) Select {ECU customizing}.
7) Check {Hazard answer-back setup}, and
then switch to ON setting if necessary.
8) Select the {Current Data Display & Save}.
9) When operate the LOCK/UNLOCK button
of transmitter, check the hazard output signal
of body integrated unit.
Is output signal is present
when operating the transmitter
LOCK/UNLOCK button?
Go to step 3.Check the body
integrated unit.
Diagnostic Proce-
dure.>
3CHECK CIRCUIT OF HAZARD LIGHT.
1) Disconnect the harness connector of body
integrated unit.
2) Disconnect the turn signal & hazard unit
harness connector.
3) Measure the resistance between harness
connector terminals.
Connector & terminal
(B280) No. 12 — (B32) No. 8:
Is the resistance less than 10
Ω?
Check the body
integrated unit.
Diagnostic Proce-
dure.>
Repair the har-
ness.
SL-21
Keyless Entry System
SECURITY AND LOCKS
10.CHECK REAR GATE RELEASE ACTUATOR OPERATION
Step Check Yes No
1CHECK REAR GATE RELEASE ACTUATOR
OPERATION.
1) Turn the ignition switch to OFF.
2) Disconnect the key warning switch harness
connector.
3) Connect the Subaru Select Monitor to data
link connector.
4) Turn the ignition switch to ON.
5) Select {Integ. unit} from main menu.
6) Select the {Current Data Display & Save}.
7) Check the rear gate release output signal of
body integrated unit when operating the LOCK/
UNLOCK button of keyless transmitter.
Is output signal is present
when operating the transmitter
LOCK/UNLOCK button?
Go to step 2.Check the body
integrated unit.
Diagnostic Proce-
dure.>
2CHECK THE CIRCUIT OF REAR GATE RE-
LEASE ACTUATOR.
1) Disconnect the harness connector of body
integrated unit.
2) Disconnect the rear gate release actuator
harness connector.
3) Measure the resistance between harness
connectors.
Connector & terminal
(i84) No. 22 — (D140) No. 1:
Is the resistance less than 10
Ω?
Go to step 3.Repair the har-
ness.
3CHECK CIRCUIT OF HAZARD LIGHT.
1) Check the ground circuit of rear gate
release actuator
2) Disconnect the rear gate release actuator
harness connector.
3) Measure the resistance between harness
connector terminal and chassis ground.
Connector & terminal
(D140) No. 2 — Chassis ground:
Is the resistance less than 10
Ω?
Check the trunk lid
lock actuator.
Rear Gate Latch
Assembly.>
Repair the har-
ness.
SL-22
Keyless Entry System
SECURITY AND LOCKS
11.CHECK DOOR LOCK SWITCH.
Step Check Yes No
1CHECK DOOR LOCK SWITCH.
Check the input signal from door lock switch to
body integrated unit using Subaru Select Moni-
tor.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON.
3) Select {Integ. unit} from main menu.
4) Select the {Current Data Display & Save}.
5) Check the input signal to body integrated
unit by operating the door lock switch.
Is the normal input signal dis-
played when the door lock
switch is moved to LOCK/
UNLOCK?
The door lock
switch is OK.
Go to step 2.
2CHECK DOOR LOCK SWITCH CIRCUIT.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the resistance between the har-
ness connector terminal and chassis ground
when moving the door lock switch to LOCK.
Connector & terminal
(i84) No. 15 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 3.Go to step 4.
3CHECK DOOR LOCK SWITCH CIRCUIT.
Measure the resistance between the harness
connector terminal and chassis ground when
the door lock switch is moved to UNLOCK.
Connector & terminal
(i84) No. 29 — Chassis ground:
Is the resistance less than 10
Ω?
The door lock
switch is OK.
Go to step 4.
4CHECK DOOR LOCK SWITCH.
1) Disconnect the door lock switch harness
connector.
2) Measure the resistance between the door
lock switch terminals when moving the door
lock switch to LOCK.
Connector & terminal
Driver’s side:
(D7) No. 5 — No. 9:
Passenger’s side:
(D125) No. 2 — No. 5:
Is the resistance less than 1
Ω?
Go to step 5.Replace the door
lock switch.
5CHECK DOOR LOCK SWITCH.
Measure the resistance between the door lock
switch terminals when moving the door lock
switch to UNLOCK.
Connector & terminal
Driver’s side:
(D7) No. 5 — No. 8:
Passenger’s side:
(D125) No. 4 — No. 5:
Is the resistance less than 1
Ω?
Check the harness
for open circuits or
shorts between
the body inte-
grated unit and the
door lock switch.
Replace the door
lock switch.
SL-23
Keyless Entry System
SECURITY AND LOCKS
12.CHECK IGNITION SWITCH ILLUMINATION.
13.CHECK HORN OPERATION
Step Check Yes No
1CHECK FUSE.
Remove and visually check the fuse No. 14 (in
the main fuse box).
Is the fuse blown out? Replace the fuse
with a new one.
Go to step 2.
2CHECK POWER SUPPLY.
1) Disconnect the ignition switch illumination
harness connector.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B414) No. 2 (+) — Chassis ground (– ):
Is the voltage more than 10 V? Go to step 3.Check the harness
for open circuits
and shorts
between the igni-
tion switch illumi-
nation and fuse.
3CHECK IGNITION SWITCH ILLUMINATION
CIRCUIT.
1) Disconnect the harness connector of body
integrated unit and ignition switch illumination
harness connector.
2) Measure the resistance between body inte-
grated unit harness connector terminal and
ignition switch illumination harness connector
terminal.
Connector & terminal
(B280) No. 4 — (B414) No. 1:
Is the resistance less than 10
Ω?
Replace the igni-
tion switch illumi-
nation bulb with a
new one.
Ignition Switch Illu-
mination.>
Check the harness
for open circuits
and shorts
between the body
integrated unit and
ignition switch illu-
mination.
Step Check Yes No
1CHECK HORN OPERATION.
Make sure the horn sounds when the horn
switch is pushed.
Does the horn sound? Go to step 2.Check the horn cir-
cuit.
2CHECK HORN OPERATION.
1) Disconnect the harness connector of body
integrated unit.
2) Connect the harness connector terminal to
ground using a suitable lead wire.
Connector & terminal
(B280) No. 11 (+) — Chassis ground (– ):
Does the horn sound? Check the body
integrated unit.
Diagnostic Proce-
dure.>
Check the harness
for open circuits
and/or shorts
between the body
integrated unit and
horn relay.
SL-24
Keyless Entry System
SECURITY AND LOCKS
14.CHECK KEYLESS BUZZER
Step Check Yes No
1CHECK KEYLESS BUZZER OPERATION.
Check that the keyless buzzer sounds when
LOCK or OPEN button of keyless remote con-
trol key is pressed.
Does the keyless buzzer
sound?
Keyless buzzer is
normal.
Go to step 2.
2CHECK KEYLESS BUZZER ON/OFF
SWITCH.
NOTE:If operations 1-5 are performed with the keyless
buzzer OFF, the keyless buzzer will turn ON.
1) Close the driver’s side door and remove the
key from the ignition key cylinder.
2) Push the door lock switch to the UNLOCK
side, and insert the key into the ignition key cyl-
inder.
3) From 2, pull out ⇔ inser t the key from the
ignition key cylinder 5 times.
4) From 3, open → close the dr iver’s side door
within 10 seconds.
5) The keyless buzzer sound ON/OFF will
switch, and the hazard lamp will blink 3 times.
If the driver's side door is not opened → closed
within 10 seconds in step 4, the hazard lamp
will blink once and the setting will not be
changed.)
6) Check that the keyless buzzer sounds
when LOCK or OPEN button of keyless remote
control key is pressed.
Does the keyless buzzer
sound?
Keyless buzzer is
normal.
Go to step 3.
3CHECK FOR POWER SUPPLY OF KEYLESS
BUZZER.
1) Turn the ignition switch to OFF.
2) Disconnect the keyless buzzer harness
connector.
3) Press the LOCK/UNLOCK button of the
keyless transmitter.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(F102) No. 1 (+) — Chassis ground (– ):
Is the voltage more than 10 V? Go to step 4.Check the harness
for open circuits
and shorts
between the key-
less buzzer and
fuse.
4CHECK FOR GROUND CIRCUIT OF KEY-
LESS BUZZER.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the resistance between harness
connector terminals.
Connector & terminal
(i84) No. 6 — (F102) No. 1:
Is the resistance less than 10
Ω?
Go to step 5.Repair the har-
ness.
5CHECK KEYLESS BUZZER.
1) Remove the keyless buzzer.
2) Install the keyless buzzer to another vehicle
which operates keyless buzzer normally, check
the buzzer sounds.
Does the keyless buzzer
sound?
Check the body
integrated unit or
door lock switch.
Diagnostic Proce-
dure.>
dow Control
Switch.>
Replace the key-
less buzzer.
SL-25
Keyless Entry System
SECURITY AND LOCKS
15.CHECK IGNITION SWITCH.
CAUTION:
When the ignition key lock is replaced, all ignition keys also must be registered. (Refer to the “IMMO-
BILIZER TEACHING OPERATION MANUAL”.)
Step Check Yes No
1CHECK FUSIBLE LINK.
Remove the fusible link main SBF and SBF-6
(in main fuse box), and visually check.
Is the fusible link blown out? Replace the fus-
ible link main SBF
or SBF-6. If the
replaced fusible
link has blown out
easily, repair the
short circuit
between the fus-
ible link and the
ignition switch.
Go to step 2.
2CHECK FOR POWER SUPPLY OF IGNITION
SWITCH.
1) Disconnect the ignition switch harness con-
nector.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B72) No. 3 (+) — Chassis ground (– ):
Is the voltage more than 10 V? Go to step 3.Check the harness
for open circuits
and shorts
between the igni-
tion switch and
fusible link.
3CHECK IGNITION SWITCH.
1) Insert the ignition key into ignition switch,
and turn the each position.
2) Measure the resistance between ignition
switch terminals.
Connector & terminal
No. 3 — No. 4 (ACC position):
No. 3 — No. 4 — No. 6 — No. 1 (ON posi-
tion):
No. 3 — No. 6 — No. 1 — No. 2 (ST posi-
tion):
Is the resistance less than 1 Ω
when turning the ignition key to
each position?
Ignition switch is
normal.
Replace the igni-
tion switch with a
new part.
MENT, Ignition Key
Lock.>