2006 SUZUKI SX4 200

Downloaded from www.Manualslib.com manuals search engine 9C-20 Instrumentation / Driver Info. / Horn:
GPS Antenna Removal and Installation (If
Equipped)
S6RW0D9306027
Removal
1) Remove combination meter cluster panel referring to
step 1) to 4) of “Combination Meter Removal and
Installation”.
2) Disconnect GPS antenna connector from navigation
unit referring to “Audio Unit Removal and Installation
(If Equipped)”.
3) Remove GPS antenna (1).
Installation
Reverse removal procedure.
Horn Removal and InstallationS6RW0D9306020
Removal
1) Disconnect negative (–) cable at battery.
2) Remove front bumper referring to “Front Bumper
and Rear Bumper Components in Section 9K”.
3) Disconnect horn connector (1).
4) Remove horn (2).
Installation
Reverse removal procedure for installation.
Horn InspectionS6RW0D9306021
1) Disconnect negative (–) cable at battery.
2) Remove front bumper referring to “Front Bumper
and Rear Bumper Components in Section 9K”.
3) Disconnect horn connector (1).
4) Connect battery positive (+) to terminal of horn
connector (2) and negative (–) terminal to body
ground.
If horn is not sounding, replace horn.
Horn Relay InspectionS6RW0D9306022
1) Disconnect negative (–) cable at battery.
2) Remove junction block.
3) Remove horn relay (1) from junction block (2).
4) Check that there is no continuity between terminals
“c” and “d”. If there is continuity, replace relay.
5) Check that there is continuity between terminals “c”
and “d” when a 12 V battery is connected to
terminals “a” and “b”. If malfunction is found, replace
it with a new one.
1
I5RW0A930022-01
12I7RW01930015-01
12
I7RW01930016-01
1
2
I4RS0B930018-01
ba
c
dc
ad
bI3JA01920006-01

Downloaded from www.Manualslib.com manuals search engine Glass / Windows / Mirrors: 9E-2
Schematic and Routing Diagram
Power Window Circuit Diagram (Pinching Prevention Function Model)S6RW0D9502001
6 5
[C][D]
DSB IG
E
SG SV SBSA DRU DRD
SG SV SBSA DRU DRDASU, RRU
or RLUASD, RRD
or RLD
[C][C]
D U
[C][D]
SU SBB [C][D] [E] [E]
ESG
SV SB SADRU DRD B ASU ASD
RRU
RRDDS IG RLD RLUSG SV SBSA DRU DRD [A] [B] 1
1
3
2
47
8
9
10
I6RW0D950001-01
[A]: Power window main switch connector
(viewed from harness side)1. Fuse 6. Pulse sensor 2
[B]: Driver side power window motor connector
(viewed from harness side)2. Driver side door switch 7. Window lock switch
[C]: UP 3. Power window main switch 8. Sub switch (passenger side, rear left side or rear light side)
[D]: DOWN 4. Driver side power window motor 9. Power window sub switch (passenger side, rear left side or
rear light side)
[E]: AUTO 5. Pulse sensor 1 10. Power window motor (other than driver side)

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 10B-1 Body Electrical Control System:
Control Systems
Body Electrical Control System
Precautions
Precautions in Diagnosing TroubleS6RW0DA200001
• Diagnostic information stored in BCM memory can be cleared as well as checked by using SUZUKI scan tool.
Before using scan tool, read its Operator’s (Instruction) Manual carefully to have good understanding as to what
functions are available and how to use it.
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” before inspection and observe what is
written there.
• Communication of ECM, TCM (A/T model), ABS control module, 4WD control module (if equipped), keyless start
control module (if equipped), combination meter and BCM is established by CAN (Controller Area Network). For
detail of CAN communication for BCM, refer to “CAN Communication System Description”. Therefore, handle CAN
communication line with care referring to “Precaution for CAN Communication System in Section 00”.
General Description
BCM General DescriptionS6RW0DA201001
The Body electrical Control Module (BCM) is
incorporated in junction block. Do not attempt removal of
BCM from junction block as it may cause contact failure.
The BCM incorporates relays and controllers which are
used for the following systems and controls them.
• Power door lock (if equipped)
• Keyless entry (if equipped)
• Door lock function of keyless start system (if
equipped)
• Rear wiper
• Combination meter
• Interior light• Warning buzzer
• Rear end door window defogger and door mirror
heater (if equipped)
• Rear end door opener (if equipped)
• Theft deterrent light
Also, the BCM has a function to cause the interior light
and open door warning light in the combination meter to
turn off when any door is left open for longer than 15
minutes to reduce wasteful battery consumption.
In addition, it is possible to check operation of actuator
which is controlled by BCM by using the output test
function of SUZUKI scan tool to operate actuator
simulatively.
CAN Communication System DescriptionS6RW0DA201002
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description.
BCM communication control data with each control module as follows.
BCM Transmission Data
A/C switch ON signal
Electric load signal
Brake fluid level switch signal
Parking brake switch signal
Diagnostic trouble code (DTC)
Illumination ON signal
Seat belt buckle switch signal
Charging system signal
Engine oil pressure switch signal
Door switch status
Door lock statusECMKeyless Start
Control Module
(if equipped) Combination
Meter
BCMTransmit
DATA
I6RW0CA20001-01

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

Downloaded from www.Manualslib.com manuals search engine 10B-3 Body Electrical Control System:
When “B” mode is selected and the door is locked using keyless entry transmitter or door request switch, the theft
deterrent light (1) flashes at 0.1 second interval for 20 seconds and the security alarm system is set to the stand-by
mode (2). Once it is set to the stand-by mode, the theft deterrent light blinks at 2 second intervals.
When the system is set to stand-by mode and the 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, the alarm devices
operate according to the selected mode as described above.
The alarm stops under either of the following conditions.
• Ignition switch is turned ON
• A certain time has elapsed since the alarm started
For selection of the mode of the security alarm system, refer to “Security Alarm Mode Selection Procedure (If
Equipped)”.
Input / Output Table
Schematic and Routing Diagram
Body Electrical Control System Wiring Circuit DiagramS6RW0DA202001
NOTE
This wiring diagram shows circuits related to only BCM, not the entire circuits of BCM and junction
block. Refer to “Power Supply Diagram in Section 9A” for wiring circuits other than the figure below.

B AT3
T1
T2 2 C
1
I7RW01A20015-01
A: Indicator light turned ON T1: 0.1 seconds
B: Indicator light turned OFF T2: 20 seconds
C: When door is locked using keyless entry transmitter or door request switch T3: 2 seconds
Input Output
Keyless entry transmitter
Door switch status
Door lock statusBCMHorn relay
Theft deterrent light
(in information display)
Warning buzzer
(located in BCM)
Hazard warning relay
Door request switch signal
Ignition switch
I5RS0CA20003-01

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-4
BLK/BLU
BLK/YEL BLK/RED
12V
12V
+BB
BLU/YEL
WHT/BLU
+BB
RED/YEL G272-7
YEL/REDYEL/BLK
5V
IG1
IG2 IG2
L312-4
ORNL314-9YEL
BLUL313-3BLUPPL/WHT
+B +B
GRN/RED
GRN
GRN
RED/BLU
L315-9
L315-10
L01-10L01-1
ON DOOROFF+B
+B
IG1WHT
L312-5 12V
LT GRN
BLK
5V5V
5V
PNK
+BB
GRN G273-2BLKBLK/ORNG272-9
G271-3
BLK/ORNL314-4
BLU G273-5
WHTE324-2
WHTG272-11
+B
REDWHT
REDWHT
REDWHT
+BB
1
30
31
6
7
8
15
16
18
19
20 20 20
21
62 6339
40
42 41
43
4346 46 45 44
484947
50
51
56
5758
59
60
61
IG1
BRN/YEL23
25 22RED/BLK
24RED/BLU
IG128GRN/WHT33
34
12V 12VLT GRN/BLK
BRN12V
L01-1226GRY/WHT
GRY/RED
IG129GRN/YEL
12V27WHT/RED
+B
32
BLU/YEL
37
35
36
G04-16
IG1
IG1
IG1
IG1
12V
17IG2
WASH
OFF
INT
ON
WASH, ON WR EWON INTBLU/BLK
YELG272-20
GRN12V
12V 5
4
PPLG04-1511
12
13
14
GRNE325-3
G272-3BLU
GRY
IG19
+B
5V
L313-2YEL
10
REDWHT
REDWHT 32
L01-11
G04-21
G04-22
E04-10
E04-8
G04-8GRY
E04-11
E04-4
G04-11YEL
G04-13
G04-14G04-12
L01-7
L01-15
L01-3
L01-14
E04-5
L01-6
L01-16
L01-17
L01-5
L01-4
G04-18
G04-17G04-5
E04-9
G04-1G04-3
G04-2G04-4
E04-2 E04-1
38
REDWHT
REDWHT
REDWHT
YEL +BL315-143
BLK/RED
BLK/REDL314-6
G271-752
BLK/REDL314-7
53BLK/REDL314-8
54
55
46 46 45 44GRN
RED/BLU
L315-9
L315-10 +B
43
[A]
[B]
I6RW0DA20001-01
[A]: Without security alarm system 21. Rear end door switch 43. Door lock actuator relay (if equipped)
[B]: With security alarm system 22. Driver side seat belt switch 44. Driver side door lock actuator (if equipped)

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-6
Connector Layout Diagram of BCM and Junction BlockS6RW0DA202002
BCM and Junction Block Connectors (Viewed from Harness Side)
I6RW0CA20004-01
[A]: Junction block (viewed from BCM side) 2. Junction block 5. Rear wiper relay
[B]: Junction block (viewed from relay side) 3. Blower motor relay 6. Rear end door window defogger relay
1. BCM 4. Horn relay 7. Turn signal and hazard warning relay