2005 SUZUKI SWIFT Unlock

Downloaded from www.Manualslib.com manuals search engine 10B-35 Body Electrical Control System:
Junction block connector “L06”
Reference waveform No. 1
Parking brake or brake fluid level switch signal (1)Reference waveform No. 2
“3” position switch signal (1) for TCM
L05-6
Right side door mirror heater
(if equipped) 10 – 14 V
Engine is running and rear end door window defogger
is in operation
0 V Engine is running and rear end door window defogger
is not in operation
L05-7 Left side door mirror heater (if
equipped) 10 – 14 V
Engine is running and rear end door window defogger
is in operation
0 V Engine is running and rear end door window defogger
is not in operation
L05-8 Rear end door window
defogger wire 10 – 14 V
Engine is running and rear end door window defogger
is in operation
0 V Engine is running and rear end door window defogger
is not in operation
L05-9 Rear wiper control 10 – 14 V
Ignition switch is at ON posi
tion and rear wiper is not in
operation
0 V Ignition switch is at ON pos
ition and rear wiper is in
operation
Terminal Circuit Normal voltage Condition
Terminal
CircuitNormal voltage Condition
L06-9 Door lock actuator control
(Unlock) 10 – 14 V Unlock signal is outpu
t for rear door lock actuator
0 V Unlock signal is not output for rear door lock actuator
L06-10 Door lock actuator control
(Lock) 10 – 14 V Lock signal is output for all door lock actuators
0 V Lock signal is not output for all door lock actuators
Measurement terminal Parking brake switch
CH2: “L01-6” to “G33-3”
Brake fluid level switch
CH2: “E46-5” to “G33-3”
Oscilloscope setting CH2: 5 V / DIV
TIME: 10 ms / DIV
Measurement
condition Parking brake switch:
• Ignition switch is at ON
position, parking brake lever
is released
Brake fluid level switch
• Ignition switch is at ON position, brake fluid level is in
normal
I4RS0AA20018-02
Measurement terminal CH2: “L01-8” to “G33-3”
Oscilloscope setting CH2: 5 V/DIV
TIME: 4 ms/DIV
Measurement
condition Ignition switch is at ON position
and A/T selector lever is at any
position other than “2” or “3”
position
I4RS0AA20015-02

Downloaded from www.Manualslib.com manuals search engine 10B-37 Body Electrical Control System:
Reference waveform No. 7
BCM – combination meter CAN communication signal
Reference waveform No. 8
Information display serial communication signal (1)Reference waveform No. 9
Keyless entry receiver signal (1)
Reference waveform No. 10
A/C switch signal (1)
Measurement terminal
CH2: “G37-2” to “G33-3”
CH3: “G37-4” to “G33-3”
Oscilloscope setting CH2: 1 V / DIV
CH3: 1 V / DIV
TIME: 40
µs / DIV
Measurement
condition Ignition switch is at ON position
1. CAN communication line signal (High)
2. CAN communication line signal (Low)
Measurement terminal CH2: “G37-11” to “G33-3”
Oscilloscope setting
CH2: 5 V / DIV
TIME: 2 ms / DIV
Measurement
condition Ignition switch is at ON position
I4RS0AA20020-02
I4RS0AA20021-02
Measurement terminal CH2: “G37-14” to “G33-3”
Oscilloscope settingCH2: 2 V / DIV
TIME: 200 ms / DIV
Measurement
condition Lock or unlock button of
keyless entry transmitter is
pushed
Measurement terminal CH2: “G37-18” to “G33-3”
Oscilloscope setting CH2: 5 V / DIV
TIME: 10 ms / DIV
Measurement
condition Ignition switch is at ON position,
A/C switch or blower speed
selector is at OFF position
I4RS0AA20022-02
I4RS0AA20023-02

Downloaded from www.Manualslib.com manuals search engine 10B-39 Body Electrical Control System:
Repair Instructions
BCM (Included in Junction Block Assembly)
Removal and Installation
S7RS0BA206001
CAUTION!
Do not attempt removal of BCM from junction
block assembly as it may cause contact
failure.
If there is faulty condition in BCM, replace
junction block assembly.

Removal
1) Disconnect negative (–) cable from battery.
2) Disable air bag system referring to “Disabling Air Bag System in Section 8B”.
3) Remove dash side trim (1) and steering column hole cover (2).
4) Remove junction block assembly mounting nuts (3).
5) Disconnect connectors from BCM and junction block assembly.
6) Detach wiring harness clamp from junction block assembly.
Installation
Reverse removal procedure for installation, noting
following points.
• Connect connectors securely.
• Enable air bag system referring to “Enabling Air Bag System in Section 8B”.
Outside Air Temperature Sensor Removal and
Installation
S7RS0BA206002
For removal and installation, refer to “Outside Air
Temperature Sensor Removal and Installation (If
Equipped) in Section 9C”.
Outside Air Temperature Sensor InspectionS7RS0BA206003
For inspection, refer to “Outside Air Temperature Sensor
Inspection (If Equipped) in Section 9C”.
Security Alarm Mode Selection Procedure (If
Equipped)
S7RS0BA206004
Security alarm mode can be selected by performing the
following procedure.
1) Confirm that all doors are closed, all doors are unlocked and ignition key is inserted in ignition key
cylinder.
2) Remove ignition key from ignition key cylinder.
3) Perform Step a) through e) described below within 15 seconds.
a) Insert ignition key (1) in ignition key cylinder (2).
b) Remove ignition key from ignition key cylinder.
c) Repeat Step a) and b) twice.
d) Insert ignition key in ignition key cylinder.
e) Push lock side (3) of driver side manual lock switch (4) 3 times.
4) When Step 3) is completed, the mode changes to the next one automatically. The warning buzzer
(located in BCM) sounds by the number of specified
for each mode as follows.
• Changed from A mode to B mode: Buzzer sounds 4 times
• Changed from B mode to A mode: Buzzer sounds once
4. BCM 5. Junction block assembly
I4RS0BA20010-01
4
3
1
2
I5RS0DA20007-01

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-1
Control Systems
Keyless Start System
General Description
Keyless Start System DescriptionS7RS0BA501001
Keyless start system consisting of the parts shown below has three functions as described below.
• Keyless engine start function:With the remote controller which has been registered in the keyless start control module carried with oneself, the
engine can be started without using the ignition key.
• Door lock function: Pushing the request switch incorporated in the outside handl e of the driver side door, passenger side door or rear
end door while carrying the remote controller which has been registered in the keyless start control module, doors
can be locked or unlocked.
• Keyless entry system function: It is possible to lock or unlock doors by push ing the lock or unlock button of remote controller.
The keyless start control module can accept regi stration of up to four remote controllers.
5
12
13
9
14
1
2
6
3
748
3
11
10
I4RS0BA50001-02
1. Keyless start control module 5. Luggage room antenna 9. Steering lock unit13. Key indicator lamp
2. Remote controller 6. Driver side door antenna10. Lock button14. ECM
3. Request switch 7. Passenger side door antenna11. Unlock button
4. Center antenna 8. Rear end door antenna12. BCM

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.
8 3
1
6 ii)
iii) iii)
iii)
iii)
iv)
i)
v)
vi)
vii)
7 6
2
[A]: i) ~ vii)
54
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.
9 2
vi)
v)
vii) iv)
i) ii)
iii)
iii)iii)
ii)
iii)
iii)
iii)
3
5
8
6
1 4
7
[A]: i) ~ viii)
viii)
I4RS0BA50003-02
[A]: Signal flow

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-5
Operation Area of Remote ControllerS7RS0BA501005
Shown below are the operation areas of the remote controller for the keyless engine start function and door lock
function of the keyless start system.
However, even when the remote controller is within the operation area as shown above, there are cases where the
keyless start system doesn’t work under certain conditi ons as described below. And when the keyless engine start
function doesn’t work, the key indicator la mp in the combination meter may light up.
• Doors cannot be locked or unlocked using the doo r lock function of keyless start system when:
– The remote controller which has been registered in the keyless start control module and another un-registered one are both carried at the same time
– The remote controller is kept in some metallic co ntainer which disturb radio wave transmission/reception
– One of doors is open
– The ignition key is inserted in the ignition key cylinder
• The function of the keyless start system to prevent the remote controller from being closed in the vehicle
compartment doesn’t work when:
– The remote controller is in the door pocket or in the glove box
– The remote controller is kept in some metallic co ntainer which disturb radio wave transmission/reception
– The remote controller is placed close to outside of the vehicle compartment (such as on the instrument panel beside the front window shield glass or in a corner of the luggage room)
• The ignition knob switch cannot be turned usin g the keyless engine start function fails to turn:
– The remote controller which has been registered in the keyless start control module and another un-registered one are both carried at the same time
– The remote controller is kept in some metallic cont ainer which disturbs radio wave transmission/reception
– The ignition knob switch has been pushed for 5 seconds or longer
– The remote controller is placed close to outside of the vehicle compartment (such as on the instrument panel beside the front window shield glass or in a corner of the luggage room)
[A] [B]
[C]
1
1
1
25
6
3
3 4
2
2
I4RS0BA50004-02
[A]: Door lock function of keyless start system 1. About 80 cm (31.5 in, 2.6 ft)4. Luggage room antenna
[B]: Function of keyless start system to prevent remote controller from being closed in vehicle compartment 2. Each door antenna
5. Vehicle compartment including luggage room
[C]: Keyless engine start function 3. Center antenna6. Vehicle compartment excluding luggage room