2006 SUZUKI SX4 ECU

Downloaded from www.Manualslib.com manuals search engine 9F-13 Security and Locks:
If check result is not as specified, replace switch.
Replacement of Transmitter Battery (Other than
Keyless Start Model)
S6RW0D9606014
NOTE
For keyless start model, perform
“Replacement of Remote Controller Battery
in Section 10E” instead of “Replacement of
Transmitter Battery (Other than Keyless Start
Model)”.

If transmitter becomes unreliable, replace transmitter
battery as follows.
1) Remove screw (1) and transmitter cover (2).
2) Remove transmitter (3) from transmitter holder (4).
CAUTION!
Use care not to allow grease or dirt to be
attached on the printed circuit board and the
battery.

3) With tip of flat blade screwdriver put in slot of
transmitter, pry it open.
4) Replace the battery (lithium disc-type CR 1620 or
equivalent battery) so its (+) terminal faces “+” mark
on transmitter.
5) Fit together transmitter (3) and install it into
transmitter holder (4).
6) Install transmitter cover (2) and screw (1).7) Make sure that door locks can be operated with
transmitter.
NOTE
• To prevent theft, be sure to break the
transmitter 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.

Programming Transmitter Code for Keyless
Entry System (Other than Keyless Start Model)
S6RW0D9606015
NOTE
• Three transmitter codes can be registered.
• When a new transmitter code is registered,
the oldest one will be cleared.
• As for vehicle equipped with keyless start
system, perform “Registration Procedure
for Remote Controller ID Code in Section
10E” instead of “Programming Transmitter
Code for Keyless Entry System (Other than
Keyless Start Model)”.

If transmitter or BCM (included in junction block
assembly) is replaced with a new one or additional
transmitter(s) is necessary, program transmitter code(s).
1) Confirm that all doors are closed and ignition key is
out of ignition key cylinder.
2) Open driver side door.
3) Turn ignition switch to ON position, and then drawn
ignition key from ignition key cylinder within 10
seconds after that.
4) Push and release driver side door switch (1) at 3
times by hand within 20 seconds after removing
ignition key from ignition key cylinder.
5) Turn ignition switch to ON position, and then drawn
ignition key from ignition key cylinder within 10
seconds after that. All doors automatically lock and
unlock once.
With this, registration mode.
1
“a”
“b”
I5RW0A960009-02
234
1I4RS0B960014-01

Downloaded from www.Manualslib.com manuals search engine Security and Locks: 9F-14
6) Push “UNLOCK” button (2) on transmitter (3) within
20 seconds after Step 5). All doors automatically lock
and unlock once.
With this, code registration is completed.
7) If an additional transmitter, needs to be programed
repeat the procedure of Step 1).
Keyless Entry Answer Back Function Change-
over Procedure (If Equipped)
S6RW0D9606018
Output of keyless entry answer back function can be
switched over by performing the following procedure.
1) Confirm that all doors are closed, all doors are
unlocked, ignition key is out of ignition key cylinder
and interior light switch is in the middle position.
2) Perform Step a) through c) described below within
10 seconds.
a) Insert ignition key in ignition key cylinder.
b) Remove ignition key from ignition key cylinder.
c) Repeat Step a) and b) once.
3) Push “UNLOCK” button on transmitter 3 times within
10 seconds.
4) Interior light flashes once which indicates that
answer back function is changed over from A mode
to B mode.
NOTE
When answer back function is changed from
B mode to A mode, hazard warning lights
flashes once.

Keyless Entry Receiver Removal and
Installation (If Equipped)
S6RW0D9606016
Removal
1) Disconnect negative cable at battery.
2) Remove grove box referring to Step 6) of “Instrument
Panel Removal and Installation in Section 9C”.
3) Disconnect keyless entry receiver coupler.
4) Remove keyless entry receiver (1) from steering
support member (2).
Installation
Reverse removal procedure.
1
32
I4RS0B960010-01
Hazard warning
light
LOCK LOCKUNLOCK UNLOCK
Interior lightFlashes
onceFlashes
twice
Flashes
once Turn on
for a
whileTurn on
for a
while Answer back
A modeAnswer back
B mode
I5RS0C960001-01
12
I5RW0A960010-02

Downloaded from www.Manualslib.com manuals search engine 9F-15 Security and Locks:
Keyless Entry Receiver and Its Circuit Inspection (If Equipped)S6RW0D9606017
1) Check that the voltage between the following terminals and body ground are specifications under each conditions.
If check result is not as specified, check applicable circuit for open or short. If circuit is normal, proceed to next
step.
Oscilloscope setting
CH1: 2V/DIV
CH2: 2V/DIV
TIME: 200 ms/DIV
1) Recheck keyless entry receiver as follows.
a) Substitute a known-good keyless entry receiver.
b) Record key code referring to “Programming Transmitter Code for Keyless Entry System (Other than Keyless
Start Model)”.
c) Recheck keyless entry receiver system.
1. Keyless entry receiver
2. Keyless entry receiver connector (view from harness side)
Terminal Circuit Specification Condition
1 Power sourceFigure [A] Push “Lock” or “Unlock” button on transmitter.
0 – 1 V Except the above-mentioned condition.
3Lock/Unlock output
signal circuitFigure [A] Push “Lock” or “Unlock” button on transmitter.
0 – 1 V Except the above-mentioned condition.
4 Ground 0 – 1 V —
1. Lock/Unlock out put signal
2. Power source
1 2 3 4
V
2
1
I5RW0A960011-02
I4RS0A960024-01

Downloaded from www.Manualslib.com manuals search engine Security and Locks: 9F-16
Specifications
Tightening Torque SpecificationsS6RW0D9607001
NOTE
The specified tightening torque is also described in the following.
“Front Door Lock Assembly Components”
“Rear Door Lock Assembly Components”
“Rear End Door Lock Assembly Components”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
Special Tools and Equipment
Recommended Service MaterialS6RW0D9608001
NOTE
Required service material is also described in the following.
“Front Door Lock Assembly Components”
“Rear Door Lock Assembly Components”

Fastening partTightening torque
Note
N⋅mkgf-mlb-ft
Door latch screw 5.0 0.5 4.0) / )
Door latch striker screw 10 1.0 7.5)
Rear end door latch bolt 10 1.0 7.5)
Rear end door striker screw 23 2.3 17.0)
Material SUZUKI recommended product or Specification Note
Grease SUZUKI Super Grease A P/No.: 99000–25011)

Downloaded from www.Manualslib.com manuals search engine Hood / Fenders / Doors: 9J-1
Body, Cab and Accessories
Hood / Fenders / Doors
Repair Instructions
Hood Removal and InstallationS6RW0D9A06001
Removal
CAUTION!
Place cloth to prevent body from any
damage.

1) Remove hood silencer (4).
2) Disconnect window washer hose (1) from hood.
3) Remove 4 mounting bolts (3) to detach hood (2).
Installation
Reverse removal procedure noting the following.
• Apply sealant to contact face “A” of hood hinge.
Specified sealant.
“A”: Sealant 99000–31110 (SUZUKI Bond
No.1215)
• Adjust hood lock position if necessary referring to
“Hood Inspection and Adjustment”.
Hood Inspection and AdjustmentS6RW0D9A06002
Inspection
• Check that hood opens and closes smoothly and
properly. Lubricate if necessary.
• Check that hood stops in the secondary latched
position properly (preventing hood from opening
freely) and that hood closes completely in the fully
latched position.
• Adjust hood locks position, if necessary.Adjustment
Adjust the following point:
• Hood position adjustment.
Fore-and-aft and right-and-left adjustment.
Adjust hood clearance by loosening hood mounting
bolts. Refer to “Panel Clearance in Section 9K”.
• Vertical adjustment
If only one side (right or left) of hood is not level with
front fender, make it level by tightening or loosening
hood cushion (1).
• Hood lock position adjustment
a. Loosen hood lock bolts.
b. Adjust hood lock height position so the hood is
locked without looseness.
c. Tighten hood latch bolts to specified torque.
Tightening torque
Hood latch bolt (a): 10 N·m (1.0 kgf-m, 7.5 lb-
ft)
d. Make sure the hood is locked smoothly and
securely.
2
4
1
3 “A”
“A”
I5RW0A9A0001-01
1
I5RW0A9A0002-01
(a)(a)
I5RW0A9A0003-01

Downloaded from www.Manualslib.com manuals search engine Hood / Fenders / Doors: 9J-7
WARNING!
Handling of rear end door balancer (damper)
• Handle balancer carefully. Do not scar or
scratch exposed surface of its piston rod,
and never allow any paint or oil to stick to
its surface.
• Do not turn piston rod with balancer fully
extended.
• Do not disassemble balancer (1) because
its cylinder is filled with gas.
Discarding of rear end door balancer
(damper)
• The gas itself in balancer is harmless but it
may issue out of the hole together with
chips generated by the drill (2). Therefore,
be sure to wear goggle when drilling.
• Using a 2 to 3 mm (0.08 to 0.12 in.) drill (2),
make a hole to remove gas inside as
shown before discarding.

Installation
Reverse removal procedure noting the following.
• Tighten rear end door balancer bolt to specified
torque.
Tightening torque
Rear end door balancer bolt (a): 23 N·m (2.3 kgf-
m, 17.0 lb-ft)
• Secure wiring harness (1).
• Adjust door latch striker position by referring to “Rear
End Door Lock Assembly Removal and Installation in
Section 9F”.
• Adjust door cushion so that door contacts body when
closed.
• Apply sealant to contact face “A” of door hinge (1) and
apply grease to rotating part “B” of hinge (1).
Specified sealant and grease.
“A”: Sealant 99000–31110 (SUZUKI Bond
No.1215)
“B”: Grease 99000–25011 (SUZUKI Super Grease
A)
AB
A
A
A
A
AAA
AAA
B
3
5
461
4
2
2
I5RW0A9A0008-03
I2RH019A0010-01
(a)
(a)
I5RW0A9A0009-02
1
I5RW0A9A0010-01
I2RH019A1012-01

Downloaded from www.Manualslib.com manuals search engine Table of Contents 10- i
10
Section 10
CONTENTS
Control Systems
Precautions ............................................... 10-1
Precautions........................................................... 10-1
Precautions for Control Systems......................... 10-1
Body Electrical Control System ........... 10B-1
Precautions......................................................... 10B-1
Precautions in Diagnosing Trouble ................... 10B-1
General Description ........................................... 10B-1
BCM General Description ................................. 10B-1
CAN Communication System Description......... 10B-1
Theft Deterrent Light ......................................... 10B-2
Security Alarm Description (If Equipped) .......... 10B-2
Schematic and Routing Diagram ...................... 10B-3
Body Electrical Control System Wiring Circuit
Diagram .......................................................... 10B-3
Connector Layout Diagram of BCM and
Junction Block ................................................. 10B-6
Component Location ......................................... 10B-7
BCM and Related System Component
Location .......................................................... 10B-7
Diagnostic Information and Procedures .......... 10B-8
BCM Self-Diagnosis Function ........................... 10B-8
Body Electrical Control System Check.............. 10B-9
Scan Tool Data ............................................... 10B-11
DTC Table ....................................................... 10B-13
DTC Check ..................................................... 10B-14
DTC Clearance ............................................... 10B-15
BCM Power Circuit and Ground Circuit Check 10B-16
DTC B1133 (DTC No. 1133): Battery Voltage
Too High ....................................................... 10B-17
DTC B1141 / DTC B1142 (No. 1141 / No.
1142) Outside Air Temperature (Ambient
Temp.) Sensor Circuit Malfunction ................ 10B-18
DTC B1150 (No. 1150): Air Bag
Communication Circuit Malfunction .............. 10B-19
DTC B1157 (No. 1157) Air Bag Deployment
Signal Input ................................................... 10B-20
DTC B1170 (No. 1170): EEPROM Access
Error .............................................................. 10B-20
DTC U0073 (No. 0073): Control Module
Communication Bus Off ................................ 10B-20
DTC U0100 (No. 0100): Lost Communication
with ECM....................................................... 10B-20DTC U0101 (No. 0101): Lost Communication
with TCM ....................................................... 10B-20
DTC U0155 (No. 0155): Lost Communication
with Instrument Panel Cluster (IPC) Control
Module .......................................................... 10B-20
DTC U1144 (No. 1144): Lost Communication
with Keyless Start Control Module ................ 10B-20
Inspection of BCM and Its Circuits .................. 10B-21
Repair Instructions ..........................................10B-28
BCM (Included in Junction Block) Removal
and Installation .............................................. 10B-28
Security Alarm Mode Selection Procedure (If
Equipped) ...................................................... 10B-29
Outside Air Temperature Sensor Removal
and Installation .............................................. 10B-29
Outside Air Temperature Sensor Inspection ... 10B-29
Special Tools and Equipment .........................10B-29
Special Tool .................................................... 10B-29
Immobilizer Control System ................. 10C-1
Precautions.........................................................10C-1
Precautions in Diagnosing Troubles .................10C-1
Precaution in Replacing ECM ...........................10C-1
Precaution in Replacing Ignition Key ................10C-1
Precautions in Handling Immobilizer Control
System ............................................................10C-1
General Description ...........................................10C-2
Immobilizer Control System Introduction ..........10C-2
On-Board Diagnostic System Description
(Self-diagnosis Function)................................10C-2
Schematic and Routing Diagram ......................10C-3
Immobilizer Control System Wiring Circuit
Diagram...........................................................10C-3
Component Location .........................................10C-5
Immobilizer Control System Components
Location...........................................................10C-5
Diagnostic Information and Procedures ..........10C-5
Immobilizer Control System Check ...................10C-5
DTC Check........................................................10C-6
DTC Clearance .................................................10C-6
DTC Table .........................................................10C-7
Scan Tool Data .................................................10C-8
Immobilizer Indicator Light Does Not Come
ON with Ignition Switch ON and Engine Stop ..10C-9

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-2
BCM Reception Data
Theft Deterrent LightS6RW0DA201003
The information display or clock (1) of this vehicle includes a theft deterrent light (2) for the theft preventive purpose.
The BCM makes the theft deterrent light flash at certain intervals after the ignition switch is turned off until it is turned
on again. Also, DTCs stored in BCM can be checked by reading the flashing patterns of the theft deterrent light when
diagnosing troubles.
Security Alarm Description (If Equipped)S6RW0DA201005
Operation
The security alarm system provides a warning of an abnormal condition to those who are around. Its operation is as
follows. While the system is in the stand-by mode (when 20 seconds or more elapsed after the door is locked using a
keyless entry transmitter or door request switch), BCM monitors door lock status, door switch status and battery power
supply voltage. When it detects an abnormal condition (door is unlocked by some way other than using keyless entry
transmitter or door request switch and opened or cut off BCM power supply voltage temporarily), it activates the
warning buzzer (located in BCM), theft deterrent light, hazard warning relay and horn relay.
The security alarm system has 2 selectable modes.
• A mode: No operation
• B mode: Theft deterrent light blinks, hazard warning lights blink, warning buzzer (located in BCM) sounds and horn
sounds
Engine speed signal
Vehicle speed signal Engine coolant temperature signal
Brake pedal switch signal
A/C refrigerant pressure signal
Fuel consumption signal A/C compressor clutch signal
Engine type signal
Transmission range sensor signal
Combination meter spec signal
Ignition knob switch signal
Door lock/unlock request signal
Buzzer request signal
Answer back request signal DATA BCM
Receive
Combination
Meter TCM
(A/T model)Keyless Start
Control Module
(if equipped) ECM
I6RW0CA20002-01
12
I5RW0AA20003-01