2006 SUZUKI SX4 Switch

Downloaded from www.Manualslib.com manuals search engine 10E-12 Keyless Start System:
DTC TableS6RW0DA504008
DTC ClearanceS6RW0DA504009
1) Perform Steps 1) through 5) of DTC check procedure
and have DTC indicated.
2) Open driver side door.
3) Close driver side door and within 10 seconds after
that, perform Steps a) to c) described below.
a) Push unlock side (3) of driver side manual door
lock switch (1).
b) Push lock side (2) of driver side manual door
lock switch.
c) Repeat Steps a) and b) 3 times.
At the end of Step c), DTCs are cleared and key
indicator light indicates DTC No. 12 (Normal).
4) After completing DTC clearance, remove ignition key
from ignition key cylinder. DTC (Flashing pattern
of key indicator light)Detected parts item Detecting condition
) 11Communication Error with Steering
Lock UnitNo communication is available between keyless
start control module and steering lock unit
12 — Normal (No malfunction DTC is detected)
) 13Release Signal Error from Steering
Lock UnitAlthough lock release signal is output to steering
lock unit, it is not inputted from steering lock unit
) 14Steering Lock Unit Malfunction Steering lock unit cannot be unlocked due to its
temperature rise
) 21Internal Error in Keyless Start Control
Module (EEPROM Reading Error)Data cannot be read from memory in keyless start
control module
) 22Internal Error in Keyless Start Control
Module (EEPROM Writing Error)Data cannot be written into memory in keyless start
control module
) 31Lost Communication with BCM Keyless start control module cannot receive data
sent by CAN from BCM
) 33Control Module Communication Bus
OffNo communication is available with all control
modules connected by CAN
) 51Driver Side Door Request Switch
MalfunctionInput signal from driver side door request switch
remains ON, unchanged
) 52Passenger Side Door Request Switch
MalfunctionInput signal from passenger side door request
switch remains ON, unchanged
) 53Rear End Door Request Switch
MalfunctionInput signal from rear end door request switch
remains ON, unchanged
1
32
I4RS0BA50011-02

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-13
Keyless Start System Symptom DiagnosisS6RW0DA504010
Door Lock Function of Keyless Start System
NOTE
Before performing trouble diagnosis procedure for door lock function of keyless start system, check
that power door lock system operates properly referring to “Power Door Lock System Operation
Inspection (If Equipped) in Section 9F”. If power door lock system does not operate properly, go to
“Power Door Lock System Symptom Diagnosis (If Equipped) in Section 9F”.

Keyless Engine Start Function
NOTE
Before performing symptom diagnosis procedure for keyless engine start system, check that engine
starts by using ignition key. If it cannot be started by using ignition key, go to “Engine Symptom
Diagnosis in Section 1A”.

Condition Possible cause Correction / Reference Item
All doors can not be
locked / unlocked by all of
door request switchesCircuit fuse(s) blownReplace fuse(s) and check for short circuit.
Remote controller battery deadReplace battery.
Remote controller faultyCheck remote controller for operation referring
to “Remote Controller Inspection”.
Wiring or grounding faultyRepair circuit.
Antennas or keyless start control
module faultyCheck input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Module and Its Circuits”.
BCM faultyCheck input and output signal of BCM referring
to “Inspection of BCM and Its Circuits in
Section 10B”.
All doors can not be
locked / unlocked by any
one of door request
switchRequest switch faultyCheck request switch for operation referring to
“Front Door (Driver and Passenger Side), Rear
End Door Request Switch Inspection”.
Wiring or grounding faultyRepair circuit.
Antennas or keyless start control
module faultyCheck input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Module and Its Circuits”.
BCM faultyCheck input and output signal of BCM referring
to “Inspection of BCM and Its Circuits in
Section 10B”.
Condition Possible cause Correction / Reference Item
Engine can not be started
by turning Ignition knob
switchCircuit fuse(s) blownReplace fuse(s) and check for short circuit.
Remote controller battery deadReplace battery.
Remote controller faultyCheck remote controller for operation referring
to “Remote Controller Inspection”.
Steering lock unit faultyCheck steering lock unit for operation referring
to “Steering Lock Unit Inspection”.
Wiring or grounding faultyRepair circuit.
Antennas or keyless start control
module faultyCheck input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Module and Its Circuits”.
ECM faultyCheck input and output signal of ECM referring
to “Inspection of ECM and Its Circuits in
Section 1A”.

Downloaded from www.Manualslib.com manuals search engine 10E-14 Keyless Start System:
Keyless Start System Operation InspectionS6RW0DA504011
Keyless Engine Start Operation
1) Sit in driver seat with remote controller carried with
you.
2) Check that all doors are closed and ignition key is
not inserted in ignition key cylinder.
3) While pushing ignition knob switch (1) of steering
lock unit, check if ignition knob switch can be turned
from its lock position.
If key indicator light (2) in combination meter lights in
blue and ignition knob switch can be turned from its
lock position in this check, keyless engine start
operation is in good condition.
If key indicator light in combination meter lights in red
and ignition knob switch cannot be turned from its
lock position in this check, go to “Keyless Start
System Check”.
NOTE
Pushing ignition knob switch for 5 seconds
or longer causes function to protect steering
lock releasing solenoid against heat to work.
Then steering lock unit stops energizing
solenoid, preventing ignition knob switch
from turning. At the same time, key indicator
light in combination meter turns off. In such
case, take your hand off from ignition knob
switch once and operate it again.

Door Lock Operation (Keyless Start System)S6RW0DA504012
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 module carried with yourself,
check that pushing driver door request switch once
locks all doors.
3) Check that pushing request switch of driver door,
passenger door or rear end door once releases
corresponding door lock.
4) Check that pushing again request switch pushed in
Step 3) releases all door locks.
NOTE
If door of which request switch has been
pushed is opened/closed before performing
Step 4), all door locks will not be released
even when Step 4) is performed. If Step 4) is
performed after door is opened/closed, only
the door of which request switch was pushed
will be locked.

Inspection of Keyless Start Control Module and
Its Circuits
S6RW0DA504013
Keyless start control module and its circuits can be
checked 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.

1 2
I4RS0BA50012-01
I4RS0BA50013-01

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-15
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.

1 2 3 4 5 6 7 8 9 10 11 14 15 16
36 34 33 32 31 30 29 24 23 37 18 19 20
[A]
I5RW0AA50008-03
[A]: Keyless start control module connector (viewed from harness side)
Terminal
NumberCircuitNormal
Vo l ta g eCondition
G16-1 Driver side door antenna (–)
*0 – 5 V Refer to “Reference waveform No. 1: ”
G16-2 Driver side door antenna (+)
G16-3 Rear end door antenna (–)
*0 – 5 V Refer to “Reference waveform No. 1: ”
G16-4 Rear end door antenna (+)
G16-5 Center antenna (–) *–2 – 2 V
Refer to “Reference waveform No. 2: ”
G16-6 Center antenna (+) *–10 – 15 V
G16-7 Luggage room antenna (–) *–10 – 10 V
Refer to “Reference waveform No. 3: ”
G16-8 Luggage room antenna (+) *–8 – 14 V
G16-9 Ground for keyless start control module 0 – 1 V Ignition switch is at all positions
G16-10 Power source 10 – 12 V Ignition switch is at all positions
G16-11 Ignition switch (ACC signal)10 – 12 V Ignition switch is at ACC or ON position
0 – 1 VIgnition switch is at any position other than
ACC or ON position
G16-12 — — —
G16-13 — — —
G16-14 Ignition switch (key reminder signal)10 – 12 V Insert ignition key to ignition key cylinder
0 – 1 V Pull out ignition key from ignition key cylinder
G16-15 Ignition switch (ON signal)10 – 12 V Ignition switch is at ON position
0 – 1 VIgnition switch is at any position other than ON
position
G16-16 Driver side door request switch10 – 12 V Request switch of driver side door is released
0 – 1 V Request switch of driver side door is pushed
G16-17 — — —

Downloaded from www.Manualslib.com manuals search engine 10E-16 Keyless Start System:
G16-18 CAN communication line (low) *1.6 – 2.5 V
Refer to “Reference waveform No. 4: ”
G16-19 CAN communication line (high) *2.5 – 3.6 V
G16-20 Power supply for steering lock unit 4 – 6 V Full time
G16-21 — — —
G16-22 — — —
G16-23 Passenger side door antenna (–)
*0 – 5 V Refer to “Reference waveform No. 1: ”
G16-24 Passenger side door antenna (+)
G16-25 — — —
G16-26 — — —
G16-27 — — —
G16-28 — — —
G16-29 Signal for steering lock unit4 – 6 VIgnition knob switch is at any position other
than ON and OFF position
*0 – 5 V Refer to “Reference waveform No. 5: ”
G16-30 Ground for steering lock unit 0 – 1 V Full time
G16-31 — — —
G16-32 Rear end door request switch10 – 12 V Request switch of rear end door is released
0 – 1 V Request switch of rear end door is pushed
G16-33 Driver side door lock switch0 – 1 VDriver side door is at unlock position and
passenger side door is at lock position
4 – 6 VDriver and passenger side door is at lock
position
*3 – 5 V Refer to “Reference waveform No. 6: ”
G16-34 Ignition knob switch10 – 12 VWhen pushing ignition knob switch of steering
lock unit
0 – 1 VWhen releasing ignition knob switch of
steering lock unit
G16-35 — — —
G16-36 Passenger side door request switch10 – 12 VRequest switch of passenger side door is
released
0 – 1 VRequest switch of passenger side door is
pushed
G16-37 Passenger side door lock switch0 – 1 VPassenger side door is at unlock position and
driver side door is at lock position
4 – 6 VDriver and passenger side door is at lock
position
*3 – 5 V Refer to “Reference waveform No. 6: ”
G16-38 — — —
G16-39 — — —
G16-40 — — — Terminal
NumberCircuitNormal
Vo l ta g eCondition

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-17
Reference waveform No. 1
Driver, passenger and rear end door antenna request
signals (Request signal (1) transmitted by each door
antenna when each door request switch is pushed)Reference waveform No. 2
Center antenna signal
(Request signal (1) transmitted by center antenna when
each door request switch is pushed)
Reference waveform No. 3
Luggage room antenna signal
(Request signal (1) transmitted by luggage room
antenna when each door request switch is pushed) Measurement
terminalDriver side door antenna
• CH1: “G16-2” to “G16-9”
• CH2: “G16-1” to “G16-9”
Passenger side door antenna
• CH1: “G16-24” to “G16-9”
• CH2: “G16-23” to “G16-9”
Rear end door antenna
• CH1: “G16-4” to “G16-9”
• CH2: “G16-3” to “G16-9”
Oscilloscope setting CH1: 5 V/DIV, CH2: 5V/DIV
TIME: 40 ms/DIV
Measurement
conditionRequest switch of each door is
pushed with remote controller
carried
I4RS0BA50015-02
Measurement
terminalCH1: “G16-6” to “G16-9”
CH2: “G16-5” to “G16-9”
Oscilloscope setting CH1: 10 V/DIV, CH2: 2 V/DIV
TIME: 20 ms/DIV
Measurement
condition• Ignition knob switch of steering
lock unit is pushed
• Request switch of each door is
pushed with remote controller
carried
Measurement
terminalCH1: “G16-8” to “G16-9”
CH2: “G16-7” to “G16-9”
Oscilloscope setting CH1: 10 V/DIV, CH2: 10 V/DIV
TIME: 20 ms/DIV
Measurement
condition• Request switch of each door is
pushed with remote controller
carried
I5JB0AA50024-03
I5JB0AA50025-02

Downloaded from www.Manualslib.com manuals search engine 10E-18 Keyless Start System:
Reference waveform No. 4
CAN communication signals
(CAN signal communicated to each control module
when ignition switch is turned ON)
Reference waveform No. 5
Steering lock unit signal
(Signal (1) communicated between keyless start control
module and steering lock unit when measurement
condition described below applies)Reference waveform No. 6
Driver and passenger side door lock switch signals.
(This signal indicates door lock status.)
In case the position of driver and passenger side door
lock is changed from the unlock to the lock.
Measurement
terminalCH1: “G16-19” to “G16-9”
CH2: “G16-18” to “G16-9”
Oscilloscope setting CH1: 1 V/DIV, CH2: 1V/DIV
TIME: 40 µs/DIV
Measurement
conditionIgnition switch is at ON position
1. CAN communication line signal (high)
2. CAN communication line signal (low)
Measurement
terminalCH1: “G16-29” to “G16-9”
Oscilloscope setting CH1: 2 V/DIV
TIME: 4 ms/DIV
Measurement
condition• Ignition knob switch of steering
lock unit is pushed
• Any one of door is opened
• Request switch of each door is
pushed
I5RS0DA50002-01
I4RS0BA50019-02
Measurement
terminalDriver side door lock switch
• CH1: “G16-33” to “G16-9”
Passenger side door lock switch
• CH2: “G16-37” to “G16-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 1 s/DIV
Measurement
conditionPress lock side of manual door
lock switch
1. Unlock signal 2. Lock signal
I5JB0AA50027-02

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-19
In case the position of passenger side door lock is
changed from the lock to the unlock when the position of
driver and passenger side door is at the lock
In case the position of driver side door lock is changed
from the lock to the unlock when the position of driver
and passenger side door is at the lock.In case the position of driver and passenger side door
lock is changed from the lock to the unlock. Measurement
terminalDriver side door lock switch
• CH1: “G16-33” to “G16-9”
Passenger side door lock switch
• CH2: “G16-37” to “G16-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 400 ms/DIV
Measurement
conditionDriver door is at lock position and
passenger side door is at unlock
position
1. Lock signal 2. Unlock signal
Measurement
terminalDriver side door lock switch
• CH1: “G16-33” to “G16-9”
Passenger side door lock switch
• CH2: “G16-37” to “G16-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 400 ms/DIV
Measurement
conditionDriver door is at unlock position
and passenger side door is at
lock position
I5JB0AA50028-02
1. Lock signal 2. Unlock signal
Measurement
terminalDriver side door lock switch
• CH1: “G16-33” to “G16-9”
Passenger side door lock switch
• CH2: “G16-37” to “G16-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 400 ms/DIV
Measurement
conditionDriver door is at unlock position
and passenger side door is at
lock position
1. Lock signal 2. Unlock signal
I5JB0AA50029-02
I5JB0AA50030-03