
SL-8
Door Lock Control System
SECURITY AND LOCKS
2. Door Lock Control System
A: WIRING DIAGRAM
1. DOOR LOCK CONTROL
B: INSPECTION
1. SYMPTOM CHART
2. CHECK FUSE
3. CHECK POWER SUPPLY & GROUND CIRCUIT
Symptom Repair order Reference
The door lock control system does
not operate.
1. Check the fuse.
2. Check the power supply and ground cir-
cuit for body integrated unit.
Lock Control System.>
3. Check the door lock switch and the circuit.
trol System.>
4. Check the door lock actuator and the cir-
cuit.
Door Lock Control System.>
The door lock switch does not oper-
ate.
Check the door lock switch.
trol System.>
A specific door lock actuator does
not operate.
Check the door lock actuator and circuit.
Door Lock Control System.>
Step Check Yes No
1CHECK FUSE.
Remove and visually check the fuse No. 3 (in
the fuse and relay box) and No. 7 (in the fuse
and relay box).
Is the fuse blown out? Replace the fuse
with a new one.
Check the power
supply and ground
circuit.
POWER SUPPLY
& GROUND CIR-
CUIT, INSPEC-
TION, Door Lock
Control System.>
Step Check Yes No
1CHECK POWER SUPPLY.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(i84) No. 34 (+) — Chassis ground (–):
(B281) No. 2 (+) — Chassis ground (– ):
Is the voltage more than 10 V? Go to step 2.Check the harness
for open or shor t
circuit between
body integrated
unit and fuse.
2CHECK GROUND CIRCUIT.
Measure the resistance between harness con-
nector terminal and chassis ground.
Connector & terminal
(B280) No. 22 — Chassis ground:
(B281) No. 8, 9 — Chassis ground:
Is the resistance less than 10
Ω?
The power supply
and ground circuit
are OK.
Repair the har-
ness.

SL-11
Keyless Entry System
SECURITY AND LOCKS
3. Keyless Entry System
A: WIRING DIAGRAM
1. KEYLESS ENTRY
B: ELECTRICAL SPECIFICATION
1. KEYLESS ENTRY CONTROL MODULE
2. BODY INTEGRATED UNIT
SL-00228
43218765
i96To
Description Terminal No. Measuring condition
Body integrated unit 3 (OUTPUT) Battery voltage cannot be measured because of digital signal.
Pow er s up p ly ( B a cku p ) 4 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Ground 7 0 V is constantly present.
CS-00273
71928
61827
51741626152514241312231122
3102921
1820
B281side
72030
619291828
51741627152614132512241123
3102922
1821
B280side
82335
722342162033
51932183117301615291428
41327
312261121025
1924
i84side

SL-12
Keyless Entry System
SECURITY AND LOCKS
Description Terminal No. Measuring condition
Ignition switch (ON) A1 (INPUT) Battery voltage is present when ignition switch is turned ON.
Keyless buzzer A6 (OUTPU T)12 V is present when pressing the LOCK or UNLOCK button of transmit-
ter.
Driver’s side front door lock actuator A7 (OUTPUT) Battery voltage is present when pressing the transmitter LOCK button.
Door and rear gate lock actuator A8 (OUTPUT)Battery voltage is present when pressing the transmitter UNLOCK but-
ton.
Keyless entr y control module A9 (INPUT) Communication line (Cannot be measured because of digital signal)
Rear gate latch switch A17 (INPUT) 0 V is present when opening the rear gate.
Rear door switch RH A18 (INPUT) 0 V is present when opening the rear door RH.
Fr o nt d oo r swi tc h L H A 19 ( I NP UT ) 0 V i s pr e se n t wh e n o p en in g th e f r o n t d oo r L H.
Ground A21 0 V is constantly present.
Rear gate release switch C22 (OUTPUT) 0 V is present when pressing the rear gate release switch.
Rear gate release actuator A22 (OUTPUT)The battery voltage is detected for 0.6 seconds when operating the rear
gate release switch.
Driver’s side front door lock actuator A23 (OUTPUT)Battery voltage is present when pressing the transmitter UNLOCK but-
ton.
Driver’s side power window main
switch (door lock switch)
Passenger’s side door lock sw itch
A15 0 V is present when pressing the door lock switch to the LOCK side.
A29 0 V is present when pressing the door lock switch to the UNLOCK side.
Rear door switch LH A31 (INPUT) 0 V is present when opening the rear door LH.
Fr o nt d oo r swi tc h RH A 32 ( I NP UT ) 0 V i s pr e se n t wh e n o p en in g th e f r o n t d oo r RH.
Pow er s up p ly A 34 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Room light B3 (INPUT)•0 V is present when pressing the UNLOCK button of transmitter.
•0 V is present when opening the door.
Pow er s up p ly B 7 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Horn circuit B11 (INPUT) 0 V is present when pressing the panic button of transmitter
Tu r n s i g n a l & h a z a r d c i r c u i t B 1 2 ( O U T P U T )0 V is present when pressing the LOCK or UNLOCK button of transmit-
ter.
Ground B22 0 V is constantly present.
Pow er s up p ly C 1 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Pow er s up p ly C 2 B at t e r y vol t ag e i s c on s ta n tl y p r e se nt .
Key war ning switch C7 (INPUT) Batter y voltage is present when inser ting the key into ignition switch.
Ground C8 0 V is constantly present.
Ground C9 0 V is constantly present.

SL-13
Keyless Entry System
SECURITY AND LOCKS
C: INSPECTION
1. SYMPTOM CHART
Symptom Repair order Reference
None of the functions of keyless entry
system operate.
1. Check the transmitter battery.
FUNCTION, INSPECTION, Keyless
Entry System.>
2. Check the fuse.
tem.>
3. Check the keyless entry control module.
INSPECTION, Keyless Entry Sys-
tem.>
4. Check the power supply and ground circuit for
body integrated unit.
AND GROUND CIRCUIT., INSPEC-
TION, Keyless Entry System.>
5. Check the key warning switch.
Entry System.>
6. Check the door switch.
Entry System.>
7. Check the body integrated unit.
The transmitter cannot be registered. 1. Check the key warning switch.
Entry System.>
2. Check the door lock switch signal.
Entry System.>
3. Check the ignition switch.
Entry System.>
4. Check the door switch.
Entry System.>
5. Check the body integrated unit.
Door lock or unlock does not operate.
NOTE:If the door lock control system does
not operate when using the door lock
switch, check the door lock control
system.
1. Check the transmitter battery.
FUNCTION, INSPECTION, Keyless
Entry System.>
2. Check the keyless entry control module.
INSPECTION, Keyless Entry Sys-
tem.>
3. Check the key warning switch.
Entry System.>
4. Check the door switch.
Entry System.>
5. Check the body integrated unit.

SL-14
Keyless Entry System
SECURITY AND LOCKS
The panic alarm does not operate. 1. Check the keyless transmitter batter y and func-
tion.
FUNCTION, INSPECTION, Keyless
Entry System.>
Check the horn operation.
Entry System.>
3. Check the body integrated unit.
Buzzer or hazard light does not oper-
ate.
1. Check the buzzer operation.
Entry System.>
2. Check the hazard light operation.
Keyless Entr y System.>
3. Check the body integrated unit.
Room light does not operate. 1. Check the room light operation.
Keyless Entr y System.>
2. Check the body integrated unit.
Ignition switch illumination does not
operate.
1. Check the ignition switch illumination.
TION, Keyless Entry System.>
2. Check the body integrated unit.
Symptom Repair order Reference

SL-15
Keyless Entry System
SECURITY AND LOCKS
2. CHECK KEYLESS TRANSMITTER BATTERY AND FUNCTION
CAUTION:
Be sure to reset the keyless transmitter of other vehicle which is registered to the inspection target
vehicle, and the vehicle to which the keyless transmitter is registered for inspection, to the condition
before performing the inspection. (Register the keyless transmitter again.)
Step Check Yes No
1CHECK TRANSMITTER BATTERY.
1) Remove the battery from the transmitter.
2) Check the battery voltage.
Is the voltage more than 2.5 V? Go to step 2.Replace the trans-
mitter battery.
2CHECK KEYLESS TRANSMITTER BAT-
TERY.
Register the keyless transmitter which oper-
ates normally on other vehicles to the inspec-
tion target vehicle.
TER WITH SUBARU SELECT MONITOR,
REPLACEMENT, Transmitter.>
1) Close all the doors and rear gate of inspec-
tion target vehicle.
2) Remove the key from ignition switch.
3) Using the keyless transmitter, lock and
unlock the doors and rear gate of vehicle.
Is the inspection target vehicle
operates lock and unlock nor-
mally?
Go to step 3.Due to vehicle
malfunction, con-
tinue the keyless
entry system diag-
nosis.
3CHECK KEYLESS TRANSMITTER BAT-
TERY.
Register the keyless transmitter of inspection
target vehicle to the another vehicle which the
keyless system operates normally.
MITTER WITH SUBARU SELECT MONITOR,
REPLACEMENT, Transmitter.>
Is the keyless transmitter regis-
tered correctly?
Go to step 4.Replace the trans-
mitter.
TION OF KEY-
LESS
TRANSMITTER
WITH SUBARU
SELECT MONI-
TO R , R E P L ACE -
MENT,
Tr a n s m i t t e r . >
4CHECK KEYLESS TRANSMITTER BAT-
TERY.
Check the registered keyless transmitter bat-
tery.
1) Close all the doors and rear gate of the
vehicle which operates keyless system nor-
mally.
2) Remove the key from ignition switch.
3) Using the keyless transmitter, lock and
unlock the doors and rear gate of vehicle.
Is the vehicle operates lock
and unlock normally?
The transmitter is
OK.
Replace the trans-
mitter.
TION OF KEY-
LESS
TRANSMITTER
WITH SUBARU
SELECT MONI-
TO R , R E P L ACE -
MENT,
Tr a n s m i t t e r . >

SL-16
Keyless Entry System
SECURITY AND LOCKS
3. CHECK FUSE
4. CHECK KEYLESS ENTRY CONTROL MODULE
Step Check Yes No
1CHECK FUSE.
Remove and visually check the fuse No. 3 (in
the fuse and relay box) and No. 7 (in the fuse
and relay box).
Is the fuse blown out? Replace the fuse
with a new one.
Check the power
supply and ground
circuit.
BODY INTE-
GRATED UNIT
POWER SUPPLY
AND GROUND
CIRCUIT.,
INSPECTION,
Keyless Entr y Sys-
tem.>
Step Check Yes No
1CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
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 {Diagnostic Trouble Code}.
5) Check that the DTC is displayed.
Is DTC B0500 “Keyless UART
com. Malfunction” displayed?
Go to step 2.Keyless entry con-
trol module is nor-
mal.
2CHECK POWER SUPPLY.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(i96) No. 4 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 3.Check the harness
for open circuits
and shorts
between the key-
less entry control
module and fuse.
3CHECK GROUND CIRCUIT.
Measure the resistance between harness con-
nector terminal and chassis ground.
Connector & terminal
(i96) No. 7 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 4.Repair the har-
ness.
4CHECK KEYLESS ENTRY CONTROL MOD-
ULE CIRCUIT.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the resistance between harness
connector terminals.
Connector & terminal
(i84) No. 9 — (i96) No. 3:
Is the resistance less than 10
Ω?
Replace the key-
less entry control
module.
Entry Control Mod-
ule.>
Repair the har-
ness.

SL-17
Keyless Entry System
SECURITY AND LOCKS
5. CHECK BODY INTEGRATED UNIT POWER SUPPLY AND GROUND CIRCUIT.
Step Check Yes No
1CHECK POWER SUPPLY OF BODY INTE-
GRATED UNIT.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B280) No. 7 (+) — Chassis ground (– ):
(B281) No. 2 (+) — Chassis ground (– ):
Is the voltage more than 10 V? Go to step 2.Check the harness
for open or shor t
between body inte-
grated unit and
fuse.
2CHECK BODY INTEGRATED UNIT GROUND
CIRCUIT.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the resistance between harness
connector terminal and chassis ground.
Connector & terminal
(B280) No. 22 — Chassis ground:
(B281) No. 8 — Chassis ground:
(B281) No. 9 — Chassis ground:
Is the resistance less than 10
Ω?
Check the body
integrated unit.
Diagnostic Proce-
dure.>
Repair the har-
ness.