2008 SUZUKI SWIFT Turn

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Diagnostic Information and Procedures
Power Door Lock System Symptom DiagnosisS7RS0B9604001
NOTE
• Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or
output side of BCM. For checking procedure, re fer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool” under “Scan Tool Data in Section 10B”.
• Check each part in the order from the top of the following list.

Power Door Lock System Operation InspectionS7RS0B9604002
1) Check the following operation:
a) Turn the driver side key cylinder is turned LOCK once, check all doors lock.
b) Turn the driver side door key cylinder is turned UNLOC K position with door key twice, check all doors unlock.
If malfunction is found, go to “Power Door Lock System Symptom Diagnosis”.
Condition Possible cause Correction / Reference Item
All door can not be locked
/ unlocked by all of
switches Circuit fuse blown
Replace fuse and check for short circuit.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.
All door can not be locked
/ unlocked by only power
door lock switch Circuit fuse blown
Replace fuse and check for short circuit.
Power door lock switch faulty Check power door lock switch referring to
“Power Door Lock Switch Inspection”.
Wiring harness connected to power door
lock switch faulty Repair.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.
All door can not be locked
/ unlocked by only key
cylinder switch Circuit fuse blown
Replace fuse and check for short circuit.
Key cylinder switch faulty Check key cylinder switch referring to “Door
Key Cylinder Switch Inspection”.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Only one door can not be
locked / unlocked Power door lock actuator faulty
Check actuator referring to “Power Door Lock
Actuator Inspection”.
Wiring harness connected to applicable
door lock actuator faulty Repair.
BCM faulty Replace after making sure that none of above
parts is faulty.

Downloaded from www.Manualslib.com manuals search engine 9F-4 Security and Locks:
Keyless Entry System Symptom Diagnosis (If Equipped)S7RS0B9604003
NOTE
• Confirm that power door lock system is in good condition before referring to the following possible causes.
• Check each part in the order from the top of the following list.

Condition Possible cause Correction / Reference Item
All door can not be locked
/ unlocked by only
keyless entry transmitter Transmitter battery dead
Replace battery referring to “Replacement of
Transmitter Battery”.
Door switch faulty Check door switch referring to “Door Switch
(Front / Rear Door) Inspection in Section 9C”
and/or “Rear End Door Switch Inspection in
Section 9C”.
Transmitter faulty Replace transmitter.
Key reminder switch in ignition switch
faulty Check ignition switch referring to “Ignition
Switch Inspection in Section 9C”.
Wiring or grounding faulty Repair circuit.
Keyless entry receiver faulty Check keyless entry receiver referring to
“Keyless Entry Receiver and Its Circuit
Inspection”.
BCM faulty Replace after making sure that none of above
parts is faulty.
Interior light does not
light when doors are
unlocked by keyless entry
transmitter Wiring or grounding faulty
Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Hazard warning lights do
not light when doors are
locked/unlocked by
keyless entry transmitter Turn signal and hazard warning relay
faulty
Check turn signal and hazard warning relay
referring to “Turn Signal and Hazard Warning
Relay Inspection in Section 9B”.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.
Transmitter code can not
be programmed to BCM Door switch faulty
Check door switch referring to “Door Switch
(Front / Rear Door) Inspection in Section 9C”
and/or “Rear End Door Switch Inspection in
Section 9C”.
Keyless entry receiver faulty Check keyless entry receiver referring to
“Keyless Entry Receiver and Its Circuit
Inspection”.
Key reminder switch in ignition switch
faulty Check ignition switch referring to “Ignition
Switch Inspection in Section 9C”.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.

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Keyless Entry System Operation InspectionS7RS0B9604004
NOTE
When performing the this inspection, make
sure to have any of the door once opened/
closed after the ignition key has been
removed from the ignition key cylinder.

1) Confirm that power door lock system operates normally, refer to “Power Door Lock System
Operation Inspection”.
2) All doors are closed and unlocked.
3) Check the following operation: a) Push “lock” button (1 ) on transmitter (2) or
remote controller once, and check all doors lock
and hazard waning lights flash once.
b) Push “unlock” button (3) on transmitter (2) or remote controller twice, and check all doors
unlock and hazard waning lights flash twice and
interior light turns on several seconds with the
interior light switch in the middle position. If malfunction is found, go to “Keyless Entry System
Symptom Diagnosis (If Equipped)”.
Door Lock Function of Keyless Start System
Symptom Diagnosis (If Equipped)
S7RS0B9604005
Proceed to “Keyless Start System Symptom Diagnosis in
Section 10E” in case that doors cannot be locked and
unlocked by operating the request switch at the outside
door handle.
Rear End Door Opener System Symptom DiagnosisS7RS0B9604006
NOTE
• Use of SUZUKI scan tool makes it easy to check wh
ether a faulty condition is on the input side or
output side of BCM. For checking procedure, re fer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool” under “Scan Tool Data in Section 10B”.
• Check each part in the order from the top of the following list.

Rear End Door Opener System Operation InspectionS7RS0B9604007
1) Unlock all doors by using manu al lock switch, keyless entry transmitter, or key cylinder switch.
2) Make sure that latch of rear end door is released from striker when rear end door opener switch is pushed. If malfunction is found, go to “Rear End Door Opener System Symptom Diagnosis”.
1
3
2I4RS0B960013-01
ConditionPossible cause Correction / Reference Item
Rear end door can not be
opened Circuit fuse blown
Replace fuse and check for short circuit.
Rear end door opener switch faulty Check rear end door opener switch referring to
“Rear End Door Opener Switch Inspection”.
Rear end door actuator faulty Check rear end door actuator referring to
“Power Door Lock Actuator Inspection”.
Wiring or grounding faulty Repair circuit.
BCM faulty Replace after making sure that none of above
parts is faulty.

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Replacement of Transmitter Battery S7RS0B9606014
If transmitter becomes unreliable, replace transmitter
battery as follows.
1) Remove screw (1) and transmitter cover (2).
2) Remove transmitter (3) from transmitter holder (4).
CAUTION!
Use care not to allow grease or dirt to be
attached on the printed circuit board and the
battery.

3) With tip of flat blade screwdriver put in slot of transmitter, pry it open.
4) Replace the battery (lithium disc-type CR 1620 or equivalent battery) so its (+) terminal faces “+” mark
on transmitter.
5) Fit together transmitter (3) and install it into
transmitter holder (4).
6) Install transmitter co ver (2) and screw (1).
7) Make sure that door locks can be operated with transmitter.
NOTE
• To prevent theft, be sure to break the transmitter before discarding it.
• Dispose of the used battery properly according to applicable rules or
regulations. Do not dispose of lithium
batteries with ordinary household trash.

Programming Transmitter Code for Keyless
Entry System (Vehicle without Keyless Start
System)
S7RS0B9606015
NOTE
• Three transmitter codes can be registered.
• When a new transmitter code is registered, the oldest one will be cleared.
• As for vehicle equipped with keyless start system, perform “Registration Procedure
for Remote Controller ID Code in Section
10E” instead of “Programming Transmitter
Code for Keyless Entry System (Vehicle
without Keyless Start System):”.

If transmitter or BCM (included in junction block
assembly) is replaced with a new one or additional
transmitter(s) is necessary, program transmitter code(s).
1) Confirm that all doors are closed and ignition key is
out of ignition key cylinder.
2) Open driver side door.
3) Turn ignition switch to ON position, and then drawn ignition key from igniti on key cylinder within 10
seconds after that.
4) Push and release driver side door switch (1) at 3 times by hand within 20 seconds after removing
ignition key from ig nition key cylinder.
5) Turn ignition switch to ON position, and then drawn ignition key from igniti on key cylinder within 10
seconds after that. All d oors automatically lock and
unlock once.
With this, registration mode.
6) Push “UNLOCK” button (2) on transmitter (3) within
20 seconds after Step 5). All doors automatically lock
and unlock once.
With this, code registration is completed.
7) If an additional transmitter, needs to be programed repeat the procedure of Step 1).
23
4
1I4RS0B960014-01
1
32
I4RS0B960010-01

Downloaded from www.Manualslib.com manuals search engine 9F-14 Security and Locks:
Keyless Entry Answer Back Function Change-
over Procedure (If Equipped)
S7RS0B9606016
Output of keyless entry answer back function can be
switched over by performing the following procedure.
1) Confirm that all doors are closed, all doors are unlocked, ignition key is out of ignition key cylinder
and interior light switch is in the middle position.
2) Perform Step a) through c) described below within 10 seconds.
a) Insert ignition key in ignition key cylinder.
b) Remove ignition key from ignition key cylinder.
c) Repeat Step a) and b) once.
3) Push “UNLOCK” button on transmitter 3 times within 10 seconds.
4) Interior light flashes once which indicates that answer back function is changed over from A mode
to B mode.
NOTE
When answer back function is changed from
B mode to A mode, hazard warning lights
flashes once.

Keyless Entry Receiver Removal and
Installation
S7RS0B9606017
Removal
1) Disconnect negative cable at battery.
2) Remove grove box referring to Step 6) of “Instrument Panel Removal and Installation in Section 9C”.
3) Disconnect keyless entry receiver coupler.
4) Remove keyless entry receiver (1) from steering support member (2).
Installation
Reverse removal procedure.
Hazard warning light
LOCK LOCK
UNLOCK UNLOCK
Interior lightFlashes
once Flashes
twice
Flashesonce
Turn on
for a
while Turn on
for a
while
Answer back
A mode Answer back
B mode
I5RS0C960001-01
1 2I4RS0B960011-01

Downloaded from www.Manualslib.com manuals search engine Hood / Fenders / Doors: 9J-2
Front Fender ComponentsS7RS0B9A06003
Front Fender Removal and InstallationS7RS0B9A06004
Removal1) Remove splash guard (if equipped) referring to “Splash Guard (If Equipped) Components in Section 9M”.
2) Remove front fender lining.
3) Remove front bumper referring to “Front Bumper and Rear Bumper Components in Section 9K”.
4) Remove headlight assembly referring to “Headlig ht Housing Removal and Installation in Section 9B”.
5) Disconnect connector from side turn signal lamp.
6) Remove front fender cover.
7) Remove front fender.
Installation
Reverse removal procedure to install fron t fender noting the following instruction.
• If paint on fender bolt is peeled off, be sure to apply paint again.
• Adjust panel clearance referring to “Panel Clearance in Section 9K”.
1 2
3
I4RS0A9A0003-01
1. Front fender lining
2. Front fender3. Front fender cover

Downloaded from www.Manualslib.com manuals search engine 9J-7 Hood / Fenders / Doors:
WARNING!
Handling of Rear End Door Balancer
(Damper)
• Handle balancer carefully. Do not scar or scratch exposed surface of its piston rod,
and never allow any paint or oil to stick to
its surface.
• Do not turn piston rod with balancer fully extended.
• Do not disassemble balancer (1) because its cylinder is filled with gas.
Discarding of Rear End Door Balancer
(Damper)
• The gas itself in balancer is harmless but it may issue out of the hole together with
chips generated by th e drill (2). Therefore,
be sure to wear goggle when drilling.
• Using a 2 to 3 mm (0.08 to 0.12 in.) drill (2),
make a hole to remove gas inside as
shown before discarding.

Installation
Reverse removal procedure noting the following.
• Tighten rear end door balancer bolt to specified torque.
Tightening torque
Rear end door balancer bolt (a): 23 N·m (2.3 kgf-
m, 17.0 lb-ft) • Secure wiring harness (1).
• Adjust door latch striker position by referring to “Rear
Door Lock Assembly Removal and Installation in
Section 9F”.
• Adjust door cushion so that door contacts body when closed.
• Apply sealant to contact face “A” of door hinge (1) and apply grease to rotating part “B” of hinge (1).
Specified sealant and grease.
“A”: Sealant 99000–31110 (SUZUKI Bond
No.1215)
“B”: Grease 99000–25010 (SUZUKI Super Grease
A)
I2RH019A0010-01
(a)
(a)
I4RS0A9A0013-01
1
I4RS0A9A0012-01
I2RH019A1012-01

Downloaded from www.Manualslib.com manuals search engine 10B-1 Body Electrical Control System:
Control Systems
Body Electrical Control System
Precautions
Precautions in Diagnosing TroubleS7RS0BA200001
• Diagnostic information stored in BCM memory can be cleared as well as checked by using SUZUKI scan tool.
Before using scan tool, read its Operator ’s (Instruction) Manual carefully to have good understanding as to what
functions are available and how to use it.
• Be sure to read “Precautions for Electrical Circuit Serv ice in Section 00” before inspection and observe what is
written there.
• Communication of ECM, TCM (if equipped), ABS/ESP ® control module, steering angle sensor (ESP ® model),
keyless start control module (if equipped), combinatio n meter and BCM is established by CAN (Controller Area
Network). For detail of CAN communication for BCM, refer to “CAN Communication System Description”.
Therefore, handle CAN communication line with care referr ing to “Precaution for CAN Communication System in
Section 00”.
General Description
BCM General DescriptionS7RS0BA201001
The Body electrical Control Module (BCM) is incorporated in junction block assembly. Do not attempt removal of BCM
from junction block assembly as it may cause contact failure.
The BCM incorporates relays and controllers which are used for the following systems and controls them.
• Power door lock
• Keyless entry (if equipped)
• Door lock function of keyle ss start system (if equipped)
• Rear wiper
• Combination meter
• Interior light
• Warning buzzer
• Rear end door window defogger and door mirror heater (if equipped)
• Rear end door opener
• Theft deterrent light
Also, the BCM has a function to cause the interior light and open door warning lamp in the combination meter to turn
off when any door is left open for longer than 15 minutes to reduce wasteful battery consumption.
In addition, it is possible to check operation of actuator whic h is controlled by BCM by using the output test function of
SUZUKI scan tool to operate actuator simulatively.