2006 SUZUKI SX4 keyless

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-23
Keyless Start Control Module Power and Ground Circuit CheckS6RW0DA504016
Wiring Diagram
Troubleshooting
BLK/ORNG16-9
G16-15
G16-10
G16-11BLU/WHT
WHT/RED
RED/BLK
5V 12V
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
[A] 423
31
G16 5
86
7
3
I7RW01A50006-02
[A]: Keyless start control module connector (viewed from harness side) 3. Circuit fuse 6. ACC signal circuit
1. Keyless start control module 4. Main fuse 7. IG ON signal circuit
2. Ignition switch 5. Power source circuit 8. Ground circuit
Step Action Yes No
1Fuse check
1) Turn ignition switch to OFF position.
2) Check circuit fuse and main fuse for condition.
Are fuses in good condition?Go to Step 2. Replace fuse(s) and
check for short.
2Power supply circuit check
1) Disconnect connector from keyless start control module.
2) Check for proper connection to “Power source”, “ACC
signal” and “IG ON signal” terminal of keyless start
control module connector.
3) If OK, measure voltage between following terminals.
• “Power source” terminal of keyless start control
module connector and vehicle body ground with
ignition switch is at OFF position
• “ACC signal” terminal of keyless start control module
connector and vehicle body ground with ignition
switch is at ACC position
• “IG ON signal” terminal of keyless start control module
connector and vehicle body ground with ignition
switch is at ON position
Is each terminal voltage is 10 – 14 V?Go to Step 3. Repair defective power
supply circuit.
3Ground circuit check
1) Check for proper connection to “Ground” terminal of
keyless start control module connector.
2) If OK, measure resistance between “Ground” terminal of
keyless start control module connector and vehicle body
ground.
Is resistance 1
Ω or less?Power and ground
circuit is in good
condition.Repair ground circuit.

Downloaded from www.Manualslib.com manuals search engine 10E-24 Keyless Start System:
DTC No. 11: Communication Error with Steering Lock UnitS6RW0DA504017
Wiring Diagram
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) Check DTC referring to “DTC Check”.
DTC Troubleshooting
5V
G16-20
G16-29
G16-30
G146-3
G146-7
G146-8
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
5V
5V
BRN
BRN/YEL
BLK/YEL
5V
21
[A]
G16
3
4
5
I7RW01A50007-02
[A]: Keyless start control module connector (viewed from harness side) 3. Steering lock unit power supply circuit
1. Keyless start control module 4. Steering lock unit signal circuit
2. Steering lock unit 5. Steering lock unit ground circuit
DTC detecting condition Trouble area
No communication is available between keyless start
control module and steering lock unit.• Steering lock unit and its circuit
• Keyless start control module
Step Action Yes No
1Was “Keyless Start System Check” performed?Go to Step 2. Go to “Keyless Start
System Check”.
2Steering lock unit circuit check
1) Disconnect connector from keyless start control module.
2) Check for proper connection to “Steering lock unit power
supply”, “Steering lock unit signal” and “Steering lock unit
ground” terminals of keyless start control module
connector.
3) If OK, check for open, short and high resistance in
following circuits.
• Steering lock unit power supply circuit
• Steering lock unit signal circuit
• Steering lock unit ground circuit
Is each circuit in good condition?Go to Step 3. Repair circuit.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-25
DTC No. 13 / No. 14: Release Signal Error from Steering Lock Unit / Steering Lock Unit MalfunctionS6RW0DA504018
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) Check DTC referring to “DTC Check”.
DTC Troubleshooting
Replace steering lock unit and recheck.
NOTE
Be sure to register the following code when a used keyless start control module is installed. Otherwise
DTC No.13 is detected by keyless start control module though steering lock unit is normal.
• With immobilizer control system, ignition key transponder code is not registered in ECM.
• Without immobilizer control system, steering lock unit ID code is not registered in keyless start
control module.

DTC No. 21 / No. 22: Internal Error of Keyless Start Control Module (EEPROM Reading Error) /
(EEPROM Writing Error)
S6RW0DA504019
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”.
DTC Troubleshooting
Substitute a known-good keyless start control module and recheck.3Steering lock unit power supply voltage check
1) Connect connector to keyless start control module.
2) Measure voltage between “Steering lock unit power
supply” 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 output 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-26 Keyless Start System:
DTC No. 31: Lost Communication with BCMS6RW0DA504020
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
DTC No. 33: Control Module Communication Bus OffS6RW0DA504021
Refer to “Troubleshooting for CAN-DTC in Section 1A”.
DTC No. 51 / No. 52 / No. 53: Driver Side / Passenger Side / Rear End Door Request Switch FailureS6RW0DA504022
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC referring to “DTC Clearance”.
2) Push request switch of each door.
3) Check DTC referring to “DTC Check”.
DTC Troubleshooting
PPL
BLU/RED
YELG16-16
G16-36
G16-32
12V
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
1
2
3
4
[A]
G16
I7RW01A50009-02
[A]: Keyless start control module connector (viewed from harness side) 3. Passenger side door request switch
1. Keyless start control module 4. Rear end door request switch
2. Driver side door request switch
DTC detecting condition Trouble area
DTC No. 51:
Input signal from driver side door request switch remains
ON, unchanged for 10 minutes or longer.
DTC No. 52:
Input signal from passenger side door request switch
remains ON, unchanged for 10 minutes or longer.
DTC No. 53:
Input signal from rear end door request switch remains
ON, unchanged for 10 minutes or longer.• Driver side door request switch and its circuit
• Passenger side door request switch and its circuit
• Rear end door request switch and its circuit
• Keyless start control module
Step Action Yes No
1Was “Keyless Start System Check” performed?Go to Step 2. Go to “Keyless Start
System Check”.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-27
Repair Instructions
Antennas and Request Switches Removal and InstallationS6RW0DA506001
Remove and install antennas and request switches referring to the following figures.2Request switch check
1) Check related door request switch for function referring
to “Front Door (Driver and Passenger Side), Rear End
Door Request Switch Inspection”.
Is each switch in good condition?Go to Step 3. Replace request switch.
3Wire harness check
1) Disconnect connector from keyless start control module.
2) Check for open, short and high resistance in related door
request switch circuit.
Is each circuit in good condition?Substitute a known-
good keyless start
control module and
recheck.Repair circuit. Step Action Yes No
[A]
[B][D]
[C][E]
1
4
52
3I5RW0AA50014-01
[A]: Front door antenna and request switch (included in outside
door handle assembly)1. Outside handle assembly
: Antenna and request switch can not be removed from outside door handle assembly
[B]: Rear end door opener and request switch assembly 2. Rear end opener and request switch
[C]: Rear end door antenna 3. Rear bumper
[D]: Center antenna 4. Parking brake lever

Downloaded from www.Manualslib.com manuals search engine 10E-28 Keyless Start System:
Front Door (Driver and Passenger Side), Rear
End Door Request Switch Inspection
S6RW0DA506002
1) Remove door trim from door panel.
For front door trim, refer to Step 1) to 3) of “Front
Door Glass Removal and Installation in Section 9E”.
For rear end door trim, refer to Step 1) of “Rear End
Door Assembly Removal and Installation in Section
9J”.
2) Check for continuity between terminals “1” and “2” at
each switch position as shown below. If check result
is not as specified, replace.
Request switch specification
ON position (request switch pushed): Continuity
OFF position (request switch released): No
continuity
Steering Lock Unit Removal and InstallationS6RW0DA506003
For removal and installation, refer to “Steering Lock
Assembly (Ignition Switch) Removal and Installation in
Section 6B”.
Steering Lock Unit InspectionS6RW0DA506004
Check key reminder switch and ignition knob switch in
steering lock unit for operation referring to “Ignition
Switch Inspection in Section 9C”.
Front Door Lock Switch InspectionS6RW0DA506005
1) Remove door trim from door panel referring to Step
1) to 3) of “Front Door Glass Removal and
Installation in Section 9E”.
2) Check for continuity between terminals “1” and “2” at
each switch position as shown below. If check result
is not as specified, replace.
Door lock switch specification
LOCK position: No continuity
UNLOCK position: Continuity
[E]: Luggage room antenna 5. Tail end member trim
[A]: Front door request switch (driver and passenger side)
[B]: Rear end door request switch
[A]
2
[B]
2
1
1
I5RW0AA50015-01
[A]: Lock [C]: Right side door lock switch
[B]: Unlock [D]: Left side door lock switch
[C] [D]
[A] [B]
1212
I4RS0BA50029-01

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-29
Keyless Start Control Module Removal and
Installation
S6RW0DA506006
Removal
1) Disconnect negative cable at battery.
2) Remove glove box from instrument panel.
3) Disconnect connector from keyless start control
module.
4) Remove keyless start control module mounting bolt
and then remove keyless start control module (1)
from steering support member (2).
Installation
For installation, reverse removal procedure.
If keyless start control module is replaced, register ID
code of remote controller into keyless start control
module, referring to “Registration Procedure for Remote
Controller ID Code”.
Remote Controller InspectionS6RW0DA506007
Check that remote controller operation indicator light (3)
lights up when lock (1), unlock (2) or panic (4) (if
equipped) 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,
unlock or panic signal, it makes operation
indicator light light up.

Replacement of Remote Controller BatteryS6RW0DA506008
If remote controller operation indicator light 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 inserted 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
2
I5RW0AA50016-01
43
21I6JB01A50007-01
1
4
2
3
I4RS0BA50032-01

Downloaded from www.Manualslib.com manuals search engine 10E-30 Keyless Start System:
3) Remove battery (4) from lower case (5).
CAUTION!
Use care not to allow grease or dirt to be
attached on the printed circuit board and the
battery.

4) Replace the battery (lithium disc-type CR 2032 or
equivalent battery) so its (+) terminal faces on
remote controller lower case.
5) Install printed circuit board and rubber switch to
upper case and then fit lower case securely.
NOTE
• To prevent theft, be sure to break the
remote controller 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.

Registration Procedure for Remote Controller
ID Code
S6RW0DA506009
NOTE
• It is possible to register up to 4 remote
controllers in keyless start control module.
• Setting keyless start control module to ID
code registration mode of remote
controller will erase all remote controller ID
codes that have been registered in keyless
start control module.
Therefore, when registering remote
controller ID codes in keyless start control
module, have all of those to be registered
ready and execute their registration at the
same time.
• When registration of more than four
remote controller ID codes is attempted,
the oldest remote controller ID code will be
erased and that inputted after the fourth
one will be registered.
• When keyless start control module which
was used in another vehicle has been
installed, register the ID code of the remote
controller to the keyless start control
module first and then the following code.
– With immobilizer control system,
register the ignition key transponder
code for the immobilizer control system
in ECM. For registration procedure of
that, refer to “Registration of the Ignition
Key in Section 10C”.
– Without immobilizer control system,
register the steering lock unit ID code in
keyless start control module. For
registration procedure of that, refer to
“Keyless Start Registration”.

1. Upper case 3. Printed circuit board
2. Rubber switch
1
2
34
5I4RS0BA50033-01