Suzuki Grand Vitara JB627. Manual — part 430
10E-5 Keyless Start System:
Door Lock Function of Keyless Start System
S6JB0BA501004
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 module (2) activates the center antenna (3) and luggage room
antenna (4) to send out the radio wave in the vehicle compartment 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 operation 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
operation indicator light (7) of the remote controller light up. Lighting of the operation indicator light 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) state 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 receives 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 vehicle 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.
[A]: i) ~ vii)
9
2
vi)
v)
vii)
iv)
i)
ii)
iii)
iii)
iii)
ii)
iii)
iii)
iii)
3
5
8
6
1
4
7
viii)
I5JB0AA50003-01
[A]: Signal flow
Keyless Start System: 10E-6
Operation Area of Remote Controller
S6JB0BA501005
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 conditions as described below. And when the keyless engine start
function doesn’t work, the key indicator light in the combination meter may light up.
• Doors cannot be locked or unlocked using the door 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 container 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 container 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 using 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 container 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]
[C]
[B]
1
2
5
6
3
3
4
1
2
2
1
I5JB0AA50004-09
[A]: Door lock function of keyless start system
3. Center antenna
[B]: Function of keyless start system to prevent remote controller from being closed in
vehicle compartment
4. Luggage room antenna
[C]: Keyless engine start function
5. Vehicle compartment including luggage room
1. About 80 cm (31.5 in, 2.6 ft)
6. Vehicle compartment excluding luggage room
2. Each door antenna
10E-7 Keyless Start System:
Alarm Function
S6JB0BA501006
Under conditions as described in the table below, the keyless start control module makes the key indicator light flash in
red and the buzzer sound to call the driver’s attention.
CAN Communication System Description
S6JB0BA501007
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description.
Keyless start control module communicates control data with each control module as follows.
Keyless Start Control Module Transmission Data
Keyless Start Control Module Reception Data
Condition
Buzzer operation
Key indicator light 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)
3 or 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 10 km/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 controller carried-out alarm)
3 or 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
I6JB0BA50001-01
Vehicle speed signal
ECM-keyless start control module code
Door switch status
Door lock status
Charing system signal
Engine oil pressure switch signal
ECM
BCM
DATA
Receive
Keyless Start
Control Module
I5RW0BA50001-01
Keyless Start System: 10E-8
Schematic and Routing Diagram
Keyless Start System Electric Wiring Circuit Diagram
S6JB0BA502001
BLK
G44-9
G44-15
G44-14
G44-37
G44-33
G44-16
G44-20
G44-29
G44-30
G44-36
G44-32
G44-10
G44-34
G44-11
WHT/BLK
WHT
WHT
RED/BLU
BLU/YEL
BLU
YEL/RED
RED/BLK
YEL
5V
5V
5V
5V
5V
5V
5V
12V
12V
G44-2
G44-1
WHT/BLU
ORN/BLU
WHT
RED
WHT
RED
G44-18
G44-19
BLU/RED
BRN/RED
G44-24
G44-23
BLK/RED
WHT/RED
G44-7
LT GRN/BLK
GRN/RED G44-8
G44-5
G44-6
PNK/BLK
GRY/RED
G44-4
G44-3
GRY/BLK
GRY/GRN
BLK/YEL
BRN/YEL
ORN
G22-3
G22-4
G22-5
G22-2
G22-1
G22-6
G22-7
G22-8
WHT
WHT
G44
[A]
1
2
3
4
5
6
7
8
9
10
11
14
15
16
36
34 33 32
30 29
24 23
37
18
19
20
WHT
WHT/BLU
WHT/BLU
WHT/RED
WHT/RED
WHT
RED
WHT
RED
6
7
8
9
10
11
12
13
14
15
1
18
21
2
3
5
4
19
20
16
17
I5JB0DA50002-01
[A]: Keyless start control module connector (viewed from harness side)
8. Rear end door antenna
16. Combination meter
1. Keyless start control module
9. Center antenna
17. Key indicator light
2. Steering Lock unit
10. Luggage room antenna
18. BCM
3. Steering lock solenoid
11. Driver side door request switch
19. ECM
4. Ignition knob switch
12. Passenger side door request switch
20. ABS or ESP
® control module
5. Key reminder switch
13. Rear end door request switch
21. Junction connector
6. Driver side door antenna
14. Driver side door lock switch
7. Passenger side door antenna
15. Passenger side door lock switch
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