Code on key lock SUZUKI SWIFT 2007 2.G Service Owner's Manual

Downloaded from www.Manualslib.com manuals search engine 10E-2 Keyless Start System:
Parts and FunctionsS7RS0BA501002
PartsFunction
Keyless start control module • Activates each antenna
• Verifies ID code of remote controller
• Requests steering lock unit to release steering lock
• Requests BCM to lock or unlock doors
• Controls key indicator la
mp in combination meter
• Transmits its ID code to ECM
Remote controller • Receives request signal from each antenna
• Transmits ID code and request signal to keyless start control module
• Request keyless start control module to lock or unlock doors (keyless entry
system function)
Request switch • Requests keyless start control module to activate each antenna
Center antenna • Transmits request signal to remote controller
Luggage room antenna • Transmits request signal to remote controller
Driver side door antenna • Transmits request signal to remote controller
Passenger side door antenna • Transmits request signal to remote controller
Rear end door antenna • Transmits request signal to remote controller
Steering lock unit • Releases steering lock
Unlock button • Transmits door unlock request signal (keyless entry system function)
Lock button • Transmits door lock request signal (keyless entry system function)
BCM • Controls each door lock actuator
• Controls warning buzzer
• Lights hazard warning lamp and interior (DOME) light (answer back)
Key indicator lamp • Indicates operation state of keyless start system (indicates check result of
remote controller ID code)
ECM • Checks keyless start control module ID code
• Transmits its ID code to keyless start control module
• Starts engine

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-3
Keyless Engine Start FunctionS7RS0BA501003
When the ignition knob switch (2) installed to the steering lock unit (1) is pushed, the keyless start control module (3)
activates the center antenna (4) to send out the request signa l in the vehicle compartment. When the remote controller
(5) receives the request signal from th e center antenna, it transmits the ID code to the keyless start control module.
The keyless start control module compares the ID code sent by the remote controller with the ID code registered in the
keyless start control module. When these ID codes match, the keyless start control module makes the key indicator
lamp (7) in the combination meter (6) light in blue and unlocks the steering lock unit to enable the ignition knob switch
to turn. When the ignition knob switch is turned to ON posit ion in this state, ID codes of ECM and keyless start control
module are compared through CA N communication (immobilizer function). Wh en they match, turning the ignition knob
switch to start position will start the engine.
NOTE
When ignition knob switch is at ACC or ON position (engine not running) and any door has been kept
open for a certain time, it may happen that engine fails to start. In such a case, turn ignition knob
switch to OFF position once and then try to start engine again.

When the ID code from the remote controller and the ID code registered in the keyless start control module do not
match or when the remote controller is outside the operation area of the remote controller and the ignition knob switch
is pushed, the steering lock unit cannot be unlocked and so the ignition knob switch cannot be turned. Then, the
keyless start control module makes the key indicator lamp in t he combination meter light in red to warn the driver that
it is not possible to turn the ignition knob switch. Also, when the ID code of ECM and that of the keyless start control
module do not match, the engine cannot be started even if the ignition knob switch is turned to the start position. Then
ECM makes the immobilizer light in the combination mete r flash to warn the driver that it is not possible to start the
engine.
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I5RS0CA50001-01
[A]: Signal flow
8. ECM

Downloaded from www.Manualslib.com manuals search engine 10E-4 Keyless Start System:
Door Lock Function of Keyless Start SystemS7RS0BA501004
When the request switch (1) incorporated in the outside handle of the driver side door, front passenger side door or
rear end door is pushed, the keyless start control modul e (2) activates the center antenna (3) and luggage room
antenna (4) to send out the radio wave in the vehicle compartm ent to check if the remote controller (5) is in the vehicle
compartment or not. When the keyless start control module receives no signal from the remote controller (i.e., the
remote controller does not exist in the vehicle compartment) , it activates the antenna (6) of the door of which the
request switch has been pushed to send the request signal out of the compartment.
If the remote controller exists within the door lock operati on area, it receives the request signal sent from the above
said antenna, sends the ID code of the remote controller and the request signal to the keyless start control module and
at the same time, it makes the operatio n indicator lamp (7) of the remote controller light up. Lighting of the operation
indicator lamp indicates that the remote controller sent the ID code and the request signal.
The keyless start control module compares the ID code sent from the remote controller with the ID code registered in
the keyless start control module. If both ID codes match, the keyless start control module outputs the lock or unlock
request signal (depending on the door lock switch (8) stat e then) to BCM (9). When BCM receives such signal through
CAN communication from the keyless start control module, it activates the door lock actuator to lock or unlock doors.
When the keyless start control module receiv es a signal from the remote controller (i.e., the remote controller exists in
the vehicle compartment), the function of the keyless start system to prevent the remote controller from being closed in
the vehicle works and the keyless start control module sends a request signal to unlock doors to BCM. In this way,
doors are kept unlocked.
Also, when the driver or passenger has left the vehicl e with the remote controller left behind in the vehicle
compartment and locked doors by using the door lock knob or manual door lock switch, the function to prevent the
remote controller from being closed in the vehicle works to unlock doors.
Furthermore, when ID codes of the remote controller and keyless start control module do not match or the remote
controller exists outside of the operation area, doors are not locked or unlocked even if the request switch of the
outside handle is operated.
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I4RS0BA50003-02
[A]: Signal flow

Downloaded from www.Manualslib.com manuals search engine 10E-6 Keyless Start System:
Alarm FunctionS7RS0BA501006
Under conditions as described in the table below, the keyless start control module makes the key indicator lamp flash
in red and the buzzer sound to call the driver’s attention.
CAN Communication System DescriptionS7RS0BA501007
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description.
Keyless start control module communicates control data wit h each control as follows.
Keyless Start Control Module Transmission Data
Keyless Start Control Module Reception Data Condition Buzzer operation Key indicator lamp operation
Ignition knob switch has stopped between ACC and OFF
positions while driver side door is opened (ignition knob
switch un-returned alarm) Intermittent —
Ignition switch has stopped between ACC and OFF
positions while driver side door is closed (ignition knob
switch un-returned alarm) 2 times Flashing in red
Remote controller is carried out of vehicle and doors are
closed while ignition switch is at ON position (remote
controller carried-out alarm) 5 times Flashing in red
Remote controller is carried out of vehicle through a window
without opening door while ignition switch is at ON position
(engine is running) and vehicle has been driven at 10km/h
(6 MPH) or more speed without remote controller in vehicle
compartment (the first time 10 km/h (6 MPH) speed is
exceeded only) (Remote cont roller carried-out alarm) 5 times Flashing in red
BCM
ECM Combination
Meter
ID code of keyless start control module
ECM-keyless start control module code
Ignition knob switch signal
Door lock/unlock request signal
Buzzer request signal
Answer back request signal
Key indicator light control signal
DATA
Transmit
Keyless Start
Control Module
I6JB0AA50005-01
Vehicle speed signal
ECM-keyless start control module code
Door switch status
Door lock status
Charging system signal
Engine oil pressure switch signal ECM BCM
DATA
ReceiveKeyless Start
Control Module
I5RW0CA50001-02

Downloaded from www.Manualslib.com manuals search engine 10E-8 Keyless Start System:
Diagnostic Information and Procedures
Precautions in Diagnosing TroublesS7RS0BA504001
• The keyless start system executes data transmission/reception by means of th e radio wave. Therefore,
proper operation may not be obtained if use of the
door lock function and engine start function of the
keyless start system is attempted near the place
where strong radio wave is emitted (TV and radio
broadcasting stations, etc.).
• Diagnostic information stored in keyless start control
module memory can be checked only by key indicator
lamp.
• Be sure to use the trouble diagnosis procedure as described in “Keyless Start System Check”. Failure to
follow it may result in incorrect diagnosis. (Some other
DTC may be stored by mistake in the memory of
keyless start control module during inspection.)
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” befo re inspection and observe
what is written there.
• Communication of ECM, BCM, TCM (A/T model), ABS control module, keyless start control module and
combination meter is estab lished by CAN (Controller
Area Network). (For detail of CAN communication for
keyless start control module, refer to “CAN
Communication System Description”). Therefore,
handle CAN communication line with care referring to
“Precaution for CAN Communication System in
Section 00”. • Replacement of the keyless start control module
When keyless start control module is replaced with
new one, make sure that r egister remote controller ID
code to keyless start co ntrol module correctly
according to “Registration Procedure for Remote
Controller ID Code”.
• Keyless start control module substitution When the keyless start control module used in
another vehicle was installed in the vehicle, register
the ID code of the remote controller in the keyless
start control module as well as the ignition key
transponder code fo r the immobilizer control system in
ECM. For the registration procedure of the ignition key
transponder code, refer to “Registration of the Ignition
Key in Section 10C”.
Self-Diagnosis FunctionS7RS0BA504002
The keyless start control module has self-diagnosis
function to monitor the system components and circuits
while the keyless start system is at work. When the
keyless start control module detects an abnormality in
the system, it saves the ar ea where such abnormality
has occurred as a DTC in its memory. The DTC stored in
memory of the keyless start control module is indicated
by the key indicator lamp in the combination meter
flashing in a specific pattern. For DTC indication, refer to
“DTC Check” and for the clearing procedure, to “DTC
Clearance”.
Keyless Start System Diagnosis IntroductionS7RS0BA504003
To ensure that the trouble diagnosis is done accurately
and smoothly, observe “Precautions in Diagnosing
Troubles” and follow “Keyless Start System Check”.
Keyless Start System CheckS7RS0BA504004
Step Action YesNo
1 1) Record details of the problem. For your record, use of a questionnaire form will facilit ate collecting information for
proper analysis and diagnosis.
2) Check if the problem described in “Customer Questionnaire (Example)” actually occurs in the vehicle.
(This step should be performed with the customer if
possible.)
Perform “Keyless Start System Operation Inspection”
procedure to check if the symptom which has occurred is
abnormal or not.
3) Check for DTC referring to “DTC Check”, and then record DTC(s).
4) Clear DTC referring to “DTC Clearance” if any DTC exists, and then recheck for DTC.
Is any DTC still detected? Go to Step 2.
Go to Step 3.
2 1) Check and repair referring to applicable “DTC Table”. Are check and repair complete? Go to Step 5.
Check and repair
malfunction part(s), and
go to Step 5.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-9
Customer Questionnaire (Example)S7RS0BA504005
3 1) Inspect and repair basic parts referring to “Keyless Start System Symptom Diagnosis”.
Is there faulty condition? Repair or replace
malfunction part(s), and
go to Step 5.
Go to Step 4.
4 1) Check for intermittent problems referring to “Intermittent and Poor Connection Inspection in Section 00”.
Is there any faulty condition? Repair or replace
malfunction part(s), and
go to Step 5.
Go to Step 5.
5 1) Confirm if the problem is solved and the keyless start system is free from any abnormal conditions. If what has
been repaired is related to the DTC, clear the DTC once
and then confirm that no DTC is indicated.
Is there any problem symptom, DTC or abnormal condition? Go to 2) of Step 1 and
perform trouble
diagnosis again.
End.
Step Action Yes No
Customers name:
Model:
VIN:

Date of issue:
Date Reg:
Date of problem:
Mileage:

Problem Symptoms
Engine can not be started by turning Ignition knob
switch
All doors can not be locked / unlocked by all of
request switches
Other
Frequency of Occurrence Continuous / Intermittent ( times a day, a month)
/ Other

Environmental Condition
Weather:
Fine / Cloudy / Rain / Snow / Other

Temperature: (F )
Stopping near area where intense radio waves are
emitted such as TV station, radio station, etc.
Yes / No
Diagnostic Trouble Code
First check:
Normal code / malfunction code ( )
Second check:
Normal code / malfunction code ( )
I4RS0BA50007-03

Downloaded from www.Manualslib.com manuals search engine 10E-14 Keyless Start System:
Door Lock Operation (Keyless Start System)S7RS0BA504012
1) Check that all door locks are released and all doors are closed.
2) With remote controller of which ID code is registered in keyless start control m odule carried with yourself,
check that pushing driver door, passenger door or
rear end door request switch once locks all doors.
3) Check that pushing request switch of driver door, passenger door or rear end door once releases all
door locks.
Inspection of Keyless Start Control Module and Its CircuitsS7RS0BA504013
Keyless start control module and its circuits can be che cked at keyless start control module wiring couplers by
measuring voltage and resistance.
CAUTION!
Keyless start control module cannot be checked by itself. It is strictly prohibited to connect voltmeter
or ohmmeter to keyless start control module with coupler disconnected from it.

Voltage Check
1) Disconnect negative (–) cable at battery.
2) Remove keyless start control module from vehicle body referring to “Keyless Start Control Module Removal and
Installation”.
3) Connect connector to keyless start control module.
4) Check voltage at each terminal number of couplers connected.
NOTE
• As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when ignition switch is ON.
• Voltage with asterisk (*) cannot be measured by voltmeter because it is pulse signal.

I4RS0BA50013-01
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[A]
I4RS0BA50014-02
[A]: Keyless start control module connector (viewed from harness side)

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-21
TroubleshootingStep Action Yes No 1 Combination meter power and ground circuit check
1) Turn ignition switch to ON position.
Do warning lights in combi nation meter other than key
indicator lamp light up? Go to Step 2. Check main fuse, circuit
fuse, combination meter
power and ground
circuit.
2 Keyless start control module power and ground circuit
check
1) Check keyless start control module power and ground
circuit for condition referrin g to “Keyless Start Control
Module Power and Ground Circuit Check”.
Is it in good condition? Go to Step 3. Repair circuit.
3 Steering lock unit ignition knob switch check
1) Check ignition knob switch of steering lock unit for
operation referring to “Steering Lock Unit Inspection”.
Is it in good condition? Go to Step 4. Replace steering lock
unit.
4 Wire harness check
1) Turn ignition switch to OFF position.
2) Disconnect connector from ke yless start control module,
steering lock unit and combination meter.
3) Check for open, short and high resistance in. • Between “G22-2” terminal of steering lock unit connector and “G42-34” terminal of keyless start
control module connector
• Between “G28-7” terminal of combination meter connector and “G42-19” terminal of keyless start
control module connector
• Between “G28-9” terminal of combination meter connector and “G42-18” terminal of keyless start
control module connector
Is it in good condition? Go to Step 5. Repair circuit.
5 Keyless start system operation check
1) With remote controller of which ID code is registered in
keyless start control module carried with you, try to turn
ignition knob switch.
Can it be turned to any position other than “LOCK” position? Replace combination
meter.
Substitute a known-
good keyless start
control module and
recheck.

Downloaded from www.Manualslib.com manuals search engine 10E-24 Keyless Start System:
DTC No. 13 / No. 14: Release Signal Error from Steering Lock Unit / Steering Lock Unit MalfunctionS7RS0BA504018
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition knob switch pushing ignition knob switch.
3) Check DTC referring to “DTC Check”.
Troubleshooting
Replace steering lock unit and recheck.
NOTE
DTC No. 13 is also set is such case where the keyless start control module which was used in another
vehicle is installed, the remote controller ID code is registered in it but the ignition key transponder
code is not registered in ECM. Therefore, when DTC No. 13 is detected, register the ignition key
transponder code in ECM before replacing the steering lock unit.

DTC No. 21 / No. 22: Internal Error of Keyle ss Start Control Module (EEPROM reading error) /
(EEPROM writing error)
S7RS0BA504019
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition knob switch pushing ignition knob switch.
3) Push request switch of each door.
4) Check DTC referring to “DTC Check”.
Troubleshooting
Substitute a known-good keyless start control module and recheck. 3
Steering lock unit power supply voltage check
1) Connect connector to keyl ess start control module.
2) Measure voltage between “G22-3” terminal of steering lock unit connector and vehicle body ground.
Is voltage 4 – 6 V? Replace steering lock
unit.
Substitute a known-
good keyless start
control module and
recheck.
Step Action Yes No
DTC detecting condition
Trouble area
DTC No. 13:
Although lock release signal is ou tput to steering lock unit, no lock
release signal is inputted from steering lock unit.
(wire harness is normal)
DTC No. 14:
Although lock release signal is output to steering lock unit,
steering lock is not released due to temperature rise of steering
lock unit solenoid and no lock release signal is inputted.
(wire harness is normal) • Steering lock unit
DTC detecting condition Trouble area
DTC No. 21:
Data cannot be read from memory in keyless start control module.
DTC No. 22:
Data cannot be written into memory in keyless start control module.• Keyless start control module

Downloaded from www.Manualslib.com manuals search engine 10E-32 Keyless Start System:
Keyless Start Control Module Removal and
Installation
S7RS0BA506006
Removal1) Disconnect negative (–) cable at battery.
2) Remove glove box from instrument panel.
3) Remove keyless start cont rol module (1) as follows.
• For vehicle equipped with M/T:
a. Disconnect connector from keyless start control module.
b. Remove keyless start control module mounting bolt and then remove keyless start
control module from steering support member
(2).
• For vehicle equipped with A/T: a. Remove TCM (3) from vehicle body referring to “Transmission Control Module (TCM)
Removal and Installation in Section 5A”.
b. Disconnect connector from keyless start control module.
c. Remove keyless start control module mounting bolt and then remove keyless start
control module from steering support member.
Installation
For installation, reverse removal procedure.
If Keyless start control module is replaced, register ID
code of remote controller in to Keyless start control
module, referring to “Registration Procedure for Remote
Controller ID Code”.
Remote Controller InspectionS7RS0BA506007
Check that remote controller operation indicator lamp (3)
lights up when lock (1) or un lock (2) button of remote
controller is pushed.
If it doesn’t light up in this check, replace battery and
then recheck. If it doesn’t light up even after battery
replacement, replace remote controller.
NOTE
When remote controller transmits lock or
unlock signal, it makes operation indicator
lamp light up.

Replacement of Remote Controller BatteryS7RS0BA506008
If remote controller operation i ndicator lamp fails to light
up when lock or unlock button of remote controller is
pushed, replace its battery as follows.
1) If ignition key (1) is inse rted in remote controller,
remove it.
2) With tip of flat blade screwdriver (2) put in slot (3) of remote controller (4), pry it open.1
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I4RS0BA50030-01
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I4RS0BA50032-01