Subaru 2003 Legacy User manual

FUJI HEAVY INDUSTRIES LTD. G2300GE7
2003 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX
BODY SECTION
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.
HVAC SYSTEM
(HEATER, VENTILATOR AND A/C) AC
HVAC SYSTEM (DIAGNOSTICS) AC
AIRBAG SYSTEM AB
AIRBAG SYSTEM (DIAGNOSTICS) AB
SEAT BELT SYSTEM SB
LIGHTING SYSTEM LI
WIPER AND WASHER SYSTEMS WW
ENTERTAINMENT ET
COMMUNICATION SYSTEM COM
GLASS/WINDOWS/MIRRORS GW
BODY STRUCTURE BS
INSTRUMENTATION/DRIVER INFO IDI
SEATS SE
SECURITY AND LOCKS SL
SUNROOF/T-TOP/CONVERTIBLE TOP
(SUNROOF) SR
EXTERIOR/INTERIOR TRIM EI
EXTERIOR BODY PANELS EB
EXTERIOR/INTERIOR TRIM EI

2003 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX
BODY SECTION
G2300GE7
CRUISE CONTROL SYSTEM CC
CRUISE CONTROL SYSTEM
(DIAGNOSTICS) CC
IMMOBILIZER (DIAGNOSTICS) IM

SECURITY AND LOCKS SL
Page
1. General Description ....................................................................................2
2. Door Lock Control System..........................................................................8
3. Keyless Entry System ...............................................................................11
4. Front Inner Remote...................................................................................19
5. Front Outer Handle ...................................................................................20
6. Front Door Latch Assembly.......................................................................21
7. Front Door Lock Actuator..........................................................................22
8. Rear Inner Remote....................................................................................23
9. Rear Outer Handle....................................................................................24
10. Rear Door Latch Assembly .......................................................................25
11. Rear Door Lock Actuator...........................................................................26
12. Rear Gate Outer Handle...........................................................................27
13. Rear Gate Latch Assembly .......................................................................28
14. Rear Gate Latch Lock Actuator.................................................................29
15. Trunk Lid Lock Assembly..........................................................................30
16. Front Hood Lock Assembly.......................................................................31
17. Remote Openers.......................................................................................32
18. Ignition Key Lock.......................................................................................34
19. Key Lock Cylinders ...................................................................................35
20. Immobilizer Control Module ......................................................................36
21. Immobilizer Antenna .................................................................................37
22. Keyless Entry Control Module...................................................................38
23. Keyless Transmitter ..................................................................................39

SL-2
SECURITY AND LOCKS GENERAL DESCRIPTION
1. General Description
A: SPECIFICATIONS
B: COMPONENT
1. DOOR LOCK ASSEMBLY
(1) Inner remote ASSY (6) Striker Tightening torque: N·m (kgf-m, ft-lb)
(2) Inner remote cover (7) Door outer handle T1: 6.4 (0.65, 4.7)
(3) Bell crank (8) Key cylinder T2: 7.35 (0.75, 5.4)
(4) Auto-door lock actuator T3: 18.0 (1.8, 13.0)
(5) Door latch
SL-00067
FRONT
REAR
( 1 )
( 1 )
( 2 )
( 2 )
( 3 )
( 3 )
( 4 )
( 4 )
( 5 )
( 5 )
( 6 )
( 6 )
( 7 )
( 7 )
( 8 )
T3
T3
T2
T2
T1
T1

SL-3
SECURITY AND LOCKS
GENERAL DESCRIPTION
2. TRUNK LID AND REAR GATE LOCK
(1) Key cylinder (6) Rear gate outer handle Tightening torque: N·m (kgf-m, ft-lb)
(2) Cable (7) Rear gate actuator T1: 7.5 (0.76, 5.5)
(3) Striker (8) Rear gate latch T2: 25 (2.5, 18.1)
(4) Trunk lid lock ASSY T3: 18 (1.8, 13.0)
(5) Trunk lid lock cover
SL-00115
TRUNK REAR GATE
( 1 )
( 1 )
( 2 )
( 2 )
( 3 )
( 3 )
( 4 )
( 5 )
( 6 )
( 7 )
( 8 )
T2
T3
T1
T2

SL-4
SECURITY AND LOCKS GENERAL DESCRIPTION
3. HOOD LOCK AND REMOTE OPENERS
(1) Hood lock ASSY (4) Cover Tightening torque: N·m(kgf-m, ft-lb)
(2) Lever ASSY (5) Pull handle ASSY T1: 6.4 (0.65, 4.7)
(3) Cable (6) Striker T2: 32 (3.3, 23.9)
SL-00116
HOOD
SEDAN
WAGON
( 1 )
( 2 )
( 3 )
( 3 )
( 3 )
( 4 )
( 5 )
( 4 )
( 5 )
( 6 )
T1
T2
T1

SL-5
SECURITY AND LOCKS
GENERAL DESCRIPTION
4. IMMOBILIZER SYSTEM
NOTE:
IMM ECM location for RHD model is symmetrically opposite.
(1) Antenna (3) Immobilizer control module (IMM
ECM)
(2) Immobilizer indicator light (LED
bulb) (4) Transponder
IM-00040
( 1 ) ( 2 )
( 3 )
( 4 )

SL-6
SECURITY AND LOCKS GENERAL DESCRIPTION
5. KEYLESS ENTRY SYSTEM
(1) Keyless entry control module (2) Rear gate latch switch (Wagon) (3) Door switch
SL-00117
( 1 )
( 2 )
( 3 )

SL-7
SECURITY AND LOCKS
GENERAL DESCRIPTION
C: CAUTION
•Before disassembling or reassembling parts,
always disconnect battery ground cable. When
repairing radio, control module, etc. which are
provided with memory functions, record
memory contents before disconnecting battery
ground cable. This is to prevent from memory
loss caused by disconnection of ground cable.
•Reassemble parts in reverse order of
disassembly procedure unless otherwise
indicated.
•Adjust parts to specifications contained in
this manual if so designated.
•Connect connectors and hoses securely
during reassembly.
•After reassembly, ensure all functional parts
operate smoothly.
•Airbag system wiring harness is routed near
the electrical parts and switch.
•All airbag system wiring harness and
connectors are colored yellow. Do not use
electrical test equipment on these circuits.
•Be careful not to damage airbag system
wiring harness when servicing the ignition key
cylinder.
D: PREPARATION TOOL
1. SPECIAL TOOLS
2. GENERAL TOOLS
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
925580000 PULLER Used for removing trim clip.
TOOL NAME REMARKS
Circuit Tester Used for measuring resistance and voltage.
Drill Used for replacing ignition key lock.
ST-925580000

SL-8
SECURITY AND LOCKS DOOR LOCK CONTROL SYSTEM
2. Door Lock Control System
A: SCHEMATIC
<Ref. to WI-240, SCHEMATIC, Keyless Entry System.>
B: INSPECTION
1. SYMPTOM CHART
2. CHECK FUSE
Symptom Repair order Reference
Door lock control system does not
operate. 1. Check the fuse. <Ref. to SL-8, CHECK FUSE, INSPECTION, Door Lock Control System.>
2. Check the power supply and ground
circuit for keyless entry control module. <Ref. to SL-9, CHECK POWER SUPPLY AND GROUND CIRCUIT, INSPECTION, Door Lock
Control System.>
3. Check the door lock switch and the
circuit. <Ref. to SL-9, CHECK DOOR LOCK SWITCH AND CIRCUIT, INSPECTION, Door Lock Con-
trol System.>
4. Check the door lock actuator and the
circuit. <Ref. to SL-10, CHECK DOOR LOCK ACTUA- TOR AND CIRCUIT, INSPECTION, Door Lock
Control System.>
Door lock switch (knob) does not
operate. Check the door lock switch and the cir- cuit. <Ref. to SL-9, CHECK DOOR LOCK SWITCH AND CIRCUIT, INSPECTION, Door Lock Con-
trol System.>
A specific door lock actuator does not
operate. Check the door lock actuator and the circuit. <Ref. to SL-10, CHECK DOOR LOCK ACTUA- TOR AND CIRCUIT, INSPECTION, Door Lock
Control System.>
Step Value Yes No
1 CHECK FUSE.
Remove and visually check fuse No. 2 (in the
main fuse box) and No. 3 (in the fuse and relay
box).
Is the fuse blown?
The fuse is not blown. Check power sup-
ply and ground cir-
cuit. <Ref. to SL-9,
CHECK POWER
SUPPLY AND
GROUND CIR-
CUIT, INSPEC-
TION, Door Lock
Control System.>
Replace the fuse
with a new one.

SL-9
SECURITY AND LOCKS
DOOR LOCK CONTROL SYSTEM
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
4. CHECK DOOR LOCK SWITCH AND CIRCUIT
Step Value Yes No
1 CHECK POWER SUPPLY.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 5 (+) — Chassis ground (–):
(B176) No. 16 (+) — Chassis ground (–):
Does the measured value exceed the spec-
ified value?
10 V Go to step 2. Checktheharness
for open circuits or
shorts between
the keyless entry
control module
and the fuse.
2 CHECK GROUND CIRCUIT.
Measure the resistance between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 6 — Chassis ground:
(B176) No. 14 — Chassis ground:
Is the measured value less than the specified
value?
10 ΩPower supply and
ground circuit are
OK.
Repair harness.
Step Value Yes No
1 CHECK DOOR LOCK SWITCH CIRCUIT.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Measure the resistance between the har-
ness connector terminal and chassis
ground when moving the driver's door lock
knob to UNLOCK.
Connector & terminal
(B176) No. 7 — Chassis ground:
Is the measured value less than the speci-
fied value?
10 ΩGo to step 2. Go to step 3.
2 CHECK DOOR LOCK SWITCH CIRCUIT.
Measure the resistance between the harness
connector terminal and chassis ground when
the driver's door lock knob is moved to LOCK.
Connector & terminal
(B176) No. 7 — Chassis ground:
Does the measured valueexceed thespecified
value?
1 MΩThe door lock
switch is OK. Go to step 3.
3 CHECK DOOR LOCK SWITCH.
1) Disconnect the driver's door lock switch
(actuator) harness connector.
2) Measure the resistance between the door
lock switch terminals whenmoving the door
lock knob to UNLOCK.
Terminal
No. 1 — No. 3:
Is the measured value less than the speci-
fied value?
1 ΩGo to step 4. Replace the door
lock switch (actua-
tor).

SL-10
SECURITY AND LOCKS DOOR LOCK CONTROL SYSTEM
5. CHECK DOOR LOCK ACTUATOR AND CIRCUIT
4 CHECK DOOR LOCK SWITCH.
Measure the resistance between the door lock
switch terminals when moving the door lock
knob to LOCK.
Terminal
No. 1 — No. 3:
Does the measured valueexceed thespecified
value?
1 MΩCheck the harness
for open circuits or
shorts between
the keyless entry
control module
and the door lock
switch.
Replace the door
lock switch (actua-
tor).
Step Value Yes No
1 CHECK OUTPUT SIGNAL.
Measure the voltage between the harness con-
nector terminal of keyless entry control module
and chassis ground when moving the door lock
knob to LOCK.
Connector & terminal
(B176) No. 18 (+) — Chassis ground (–):
Does the measured valueexceed thespecified
value?
10 V Go to step 2. Replace the key-
less entry control
module.
2 CHECK OUTPUT SIGNAL.
Measure the voltage between the harness con-
nector terminal of keyless entry control module
and chassis ground when moving the door lock
knob to UNLOCK.
Connector & terminal
(B176) No. 17 (+) — Chassis ground (–):
Does the measured valueexceed thespecified
value?
10 V Go to step 3. Replace the key-
less entry control
module.
3 CHECK DOOR LOCK ACTUATOR.
Check the door lock actuator.
Front door lock actuator: <Ref. to SL-22, Front
Door Lock Actuator.>
Rear door lock actuator: <Ref. to SL-26, Rear
Door Lock Actuator.>
Rear gate latch lock actuator: <Ref. to SL-29,
Rear Gate Latch Lock Actuator.>
Is the door lock actuator OK?
The door lock actuator is OK. Checktheharness
for open circuits or
shorts between
the keyless entry
control module
and the door lock
actuator.
Replace the door
lock actuator.
Step Value Yes No

SL-11
SECURITY AND LOCKS
KEYLESS ENTRY SYSTEM
3. Keyless Entry System
A: SCHEMATIC
<Ref. to WI-240, SCHEMATIC, Keyless Entry System.>
B: ELECTRICAL SPECIFICATION
Content Terminal No. Measuring condition
Key warning switch 1 (INPUT) Battery voltage is present when inserting the key into the ignition switch.
Registration connector 2 (INPUT) 0 V is detected when connecting the registration connector.
Door switch 3 (INPUT) 0 V is detected when any door is open.
Rear gate switch 4 (INPUT) 0 V is detected when opening the rear gate.
Power supply 5 Battery voltage is constantly detected.
Ground 6 0 V is constantly detected.
Door lock switch 7 (INPUT) 0 V is detected when driver's door is unlocked.
Empty 8 —
Empty 9 —
Empty 10 —
Room light/Ignition switch illumina-
tion 11 (OUTPUT) •0 V is detected when pressing the transmitter OPEN button.
•0 V is detected when any door is open.
Turn signal light (Right) 12 (OUTPUT) Battery voltage is detected when pressing the transmitter OPEN or
LOCK button.
Turn signal light (Left) 13 (OUTPUT) Battery voltage is detected when pressing the transmitter OPEN or
LOCK button.
Ground 14 0 V is constantly detected.
Power supply (Hazard light) 15 Battery voltage is constantly detected.
Power supply 16 Battery voltage is constantly detected.
Door and rear gate lock actuator
(Unlock) 17 (OUTPUT) Battery voltage is detected when pressing the transmitter OPEN button.
Door and rear gate lock actuator
(Lock) 18 (OUTPUT) Battery voltage is detected when pressing the transmitter LOCK button.
SL-00118
18 17 16 15 14 13 12 11
1687
10 92435

SL-12
SECURITY AND LOCKS KEYLESS ENTRY SYSTEM
C: INSPECTION
1. SYMPTOM CHART
Symptom Repair order Reference
None of the functions of the keyless
entry system operate. 1. Check the transmitter battery. <Ref. to SL-13, CHECK TRANSMITTER BAT- TERY, INSPECTION, Keyless Entry System.>
2. Check the fuse. <Ref. to SL-13, CHECK FUSE, INSPECTION,
Keyless Entry System.>
3. Check the keyless entry control mod-
ule power supply and ground circuit. <Ref. to SL-13, CHECK POWER SUPPLY AND GROUND CIRCUIT, INSPECTION, Keyless
Entry System.>
4. Replace the keyless entry control
module. <Ref. to SL-38, Keyless Entry Control Module.>
Transmitter cannot be registered. 1. Check the transmitter battery. <Ref. to SL-13, CHECK TRANSMITTER BAT-
TERY, INSPECTION, Keyless Entry System.>
2. Check the registration connector cir-
cuit. <Ref. to SL-14, CHECK REGISTRATION CON- NECTOR CIRCUIT, INSPECTION, Keyless
Entry System.>
3. Replace the keyless entry control
module. <Ref. to SL-38, Keyless Entry Control Module.>
Door lock or unlock does not operate.
N
O
TE:
If the door lock control system does
not operate when using the door lock
switch, check the door lock control
system. <Ref. to SL-8, INSPECTION,
Door Lock Control System.>
1. Check the transmitter battery. <Ref. to SL-13, CHECK TRANSMITTER BAT-
TERY, INSPECTION, Keyless Entry System.>
2. Check the key warning switch. <Ref. to SL-16, CHECK KEY WARNING
SWITCH, INSPECTION, Keyless Entry Sys-
tem.>
3. Check the door switch. <Ref. to SL-15, CHECK DOOR SWITCH,
INSPECTION, Keyless Entry System.>
4. Replace the keyless entry control
module. <Ref. to SL-38, Keyless Entry Control Module.>
Hazard light does not operate. 1. Check the hazard light operation. <Ref. to SL-17, CHECK HAZARD LIGHT
OPERATION, INSPECTION, Keyless Entry
System.>
2. Replace the keyless entry control
module. <Ref. to SL-38, Keyless Entry Control Module.>
Room light and ignition switch illumi-
nation operation does not activate. 1. Check the room light operation. <Ref. to SL-17, CHECK ROOM LIGHT OPERA- TION, INSPECTION, Keyless Entry System.>
2. Check the ignition switch illumination
circuit. <Ref. to SL-18, CHECK IGNITION SWITCH ILLUMINATION CIRCUIT, INSPECTION, Key-
less Entry System.>
3. Replace the keyless entry control
module. <Ref. to SL-38, Keyless Entry Control Module.>

SL-13
SECURITY AND LOCKS
KEYLESS ENTRY SYSTEM
2. CHECK TRANSMITTER BATTERY
3. CHECK FUSE
4. CHECK POWER SUPPLY AND GROUND CIRCUIT
Step Value Yes No
1 CHECK TRANSMITTER BATTERY.
1) Remove the battery from the transmitter.
<Ref. to SL-39, REMOVAL, Keyless Trans-
mitter.>
2) Check the battery voltage. <Ref. to SL-39,
INSPECTION, Keyless Transmitter.>
Does the measured value exceed the spec-
ified value?
2 V The transmitter
battery is OK. Fur-
ther inspection is
necessary, refer to
“SYMPTOM
CHART”. <Ref. to
SL-12, SYMP-
TOM CHART,
INSPECTION,
Keyless Entry Sys-
tem.>
Replace the trans-
mitter battery.
Step Value Yes No
1 CHECK FUSE.
Remove and visually check fuse No. 2 (in the
main fuse box), No. 3 (in the fuse and relay
box) and SBF-6 (in the main fuse box)
Is the fuse blown?
The fuse is not blown. Check power sup-
ply and ground cir-
cuit. <Ref. to SL-
13, CHECK
POWER SUPPLY
AND GROUND
CIRCUIT,
INSPECTION,
Keyless Entry Sys-
tem.>
Replace the fuse
with a new one.
Step Value Yes No
1 CHECK POWER SUPPLY.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 5, No. 16 (+) — Chassis
ground (–):
Does the measured value exceed the spec-
ified value?
10 V Go to step 2. Checktheharness
for open circuits or
shorts between
the keyless entry
control module
and fuse.
2 CHECK GROUND CIRCUIT.
Measure the resistance between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 6, No. 14 — Chassis ground:
Is the measured value less than the specified
value?
10 ΩThe power supply
and ground circuit
are OK.
Repair the har-
ness.

SL-14
SECURITY AND LOCKS KEYLESS ENTRY SYSTEM
5. CHECK REGISTRATION CONNECTOR CIRCUIT
Step Value Yes No
1 REGISTRATION CONNECTOR INPUT VOLT-
AGE INSPECTION
1) Turn ignition switch ON.
2) Disconnect registration connector.
3) Measure voltage between keyless entry
control module harness connector and
chassis ground.
Connector & terminal
(B176) No. 2 (+) — Chassis ground (−):
Does the measured value exceed the spec-
ified value?
10 V Go to step 2. Repair harness,
and (or) connec-
tor.
2 REGISTRATION CONNECTOR INPUT VOLT-
AGE INSPECTION
1) Connect registration connector.
2) Measure voltage between keyless entry
control module harness connector and
chassis ground.
Connector & terminal
(B176) No. 2 (+) — Chassis ground (−):
Is the measured value same as the speci-
fied value?
0 V Registration con-
nector circuit is
OK.
Repair harness,
and (or) connec-
tor.

SL-15
SECURITY AND LOCKS
KEYLESS ENTRY SYSTEM
6. CHECK DOOR SWITCH
Step Value Yes No
1 CHECK DOOR SWITCH CIRCUIT.
Measure the voltage between the keyless
entry control module harness connector termi-
nal and chassis ground.
Connector & terminal
Front and rear door:
(B176) No. 3 (+) — Chassis ground (–):
Rear gate:
(B176) No. 4 (+) — Chassis ground (–):
Is the measured value same as the specified
value when opening either door or rear gate?
0 V Go to step 2. Go to step 3.
2 CHECK DOOR SWITCH CIRCUIT.
Measure the voltage between the keyless
entry control module harness connector termi-
nal and chassis ground.
Connector & terminal
Front and rear door:
(B176) No. 3 (+) — chassis ground (–):
Rear gate:
(B176) No. 4 (+) — chassis ground (–):
Is the measured value less than the specified
value when all doors and rear gate are closed?
10 V The door switch is
OK. Go to step 3.
3 CHECK DOOR SWITCH.
1) Disconnect the door switch harness con-
nector.
2) Measure the resistance between the door
switch terminals.
Terminal
Door switch No. 1 — No. 3:
Rear gate latch switch No. 1 — No. 2:
Does the measured value exceed the spec-
ified value when door switch is pressed?
1 MΩGo to step 4. Replace the door
switch.
4 CHECK DOOR SWITCH.
Measure the resistance between the door
switch terminals.
Terminal
Door switch No. 1 — No. 3:
Rear gate latch switch No. 1 — No. 2:
Is the measured value less than the specified
value when door switch is released?
1 ΩCheck the harness
for open circuits or
shorts between
the keyless entry
control module
and door switch.
Replace the door
switch.

SL-16
SECURITY AND LOCKS KEYLESS ENTRY SYSTEM
7. CHECK KEY WARNING SWITCH
Step Value Yes No
1 CHECK FUSE.
Remove and visually check fuse No. 6 (in the
main fuse box).
Is the fuse blown?
The fuse is not blown. Go to step 2. Replace the fuse
with a new one.
2 CHECK KEY WARNING SWITCH CIRCUIT.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Insert the key into the ignition switch.
(LOCK position)
3) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 1 (+) — chassis ground (–):
Does the measured value exceed the spec-
ified value?
10 V Go to step 3. Go to step 4.
3 CHECK KEY WARNING SWITCH CIRCUIT.
1) Remove the key from the ignition switch.
2) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B176) No. 1 (+) — chassis ground (–):
Is the measured value same as the speci-
fied value?
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 the ignition switch.
(LOCK position)
3) Measure the resistance between the key
warning switch terminals.
Terminal
No. 1 — No. 2:
Is the measured value less than the speci-
fied value?
1 ΩGo to step 5. Replace key warn-
ing switch.
5 CHECK KEY WARNING SWITCH.
1) Remove the key from the ignition switch.
2) Measure the resistance between the key
warning switch terminals.
Terminal
No. 1 — No. 2:
Does the measured value exceed the spec-
ified value?
1 MΩCheck the follow-
ing:
• Harness for
open circuits or
shorts between
the key warning
switch and fuse
• Harness for
open circuits or
shorts between
the keyless entry
control module
and key warning
switch
Replace key warn-
ing switch.

SL-17
SECURITY AND LOCKS
KEYLESS ENTRY SYSTEM
8. CHECK HAZARD LIGHT OPERATION
9. CHECK ROOM LIGHT OPERATION
Step Value Yes No
1 CHECK HAZARD LIGHT OPERATION.
Make sure the hazard light blinks when hazard
switch is turned ON.
Does hazard light brink?
Hazard light blinks. Go to step 2. Check hazard light
circuit.
2 CHECK OUTPUT SIGNAL.
1) Remove the key from ignition switch.
2) Close all doors and rear gate.
3) Measure voltage between keyless entry
control module harness connector terminal
and chassis ground when LOCK or OPEN
button of transmitter is pressed.
Connector & terminal
(B176) No. 12, No. 13 (+) — Chassis
ground (−):
Does the measured value exceed the spec-
ified value?
10 V Check harness for
open or short
between keyless
entry control mod-
ule and turn signal
lights.
Replace the key-
less entry control
module.
Step Value Yes No
1 CHECK ROOM LIGHT OPERATION.
Make sure the room light illuminates when the
room light switch is turned ON.
Does the room light illuminate?
Room light illuminates. Go to step 2. Check the room
light circuit.
2 CHECK HARNESS BETWEEN ROOM LIGHT
AND KEYLESS ENTRY CONTROL MODULE.
1) Disconnect the keyless entry control mod-
ule harness connector and room light har-
ness connector.
2) Measure the resistance between the key-
less entry control module harness connec-
tor terminal and the room light harness
connector terminal.
Connector & terminal
(B176) No. 11 — (R52) No. 2:
Is the measured value less than the speci-
fied value?
10 ΩThe room light
operation circuit is
OK.
Checkthe harness
for open circuits or
shorts between
the keyless entry
control module
and room light.

SL-18
SECURITY AND LOCKS KEYLESS ENTRY SYSTEM
10.CHECK IGNITION SWITCH ILLUMINATION CIRCUIT
Step Value Yes No
1 CHECK IGNITION SWITCH ILLUMINATION
POWER SUPPLY.
1) Disconnect the ignition switch illumination
harness connector.
2) Measure voltage between the ignition
switch illumination harness connector ter-
minal and chassis ground.
Connector & terminal
(B224) No. 2 (+) — Chassis ground (−):
Does the measured value exceed the spec-
ified value?
10 V Go to step 2. Check harness for
open circuit or
shorts between
the ignition switch
illumination and
fuse.
2 CHECK HARNESS BETWEEN IGNITION
SWITCH ILLUMINATION AND KEYLESS EN-
TRY CONTROL MODULE.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Measure the resistance between the key-
less entry harness connector terminal and
the ignition switch illumination harness con-
nector.
Connector & terminal
(B176) No. 11 — (B224) No. 1:
Is the measured value less than the speci-
fied value?
10 ΩCheck the ignition
switch illumina-
tion. If NG, replace
the ignition switch
illumination.
Repair the har-
ness.