BCM SUZUKI SX4 2006 1.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 9C-10 Instrumentation / Driver Info. / Horn:
Cigarette Lighter Symptom Diagnosis (If Equipped)S6RW0D9304013
Horn Symptom DiagnosisS6RW0D9304014
Information Display Symptom Diagnosis (If Equipped)S6RW0D9304015
NOTE
This thermometer indicates the ambient temperature in the under side of front bumper member. Under
any one of the following listed conditions, however, even when the ambient temperature goes up, the
thermometer display does not rise so as to correct the rise of the ambient temperature caused by the
radiant heat of the engine. When the ambient temperature drops, the thermometer reading follows the
change in the temperature.
Be sure to bear this in mind when diagnosing trouble.
• The vehicle speed is 30 km/h (18 mph) or lower.
• Vehicle speed signal is faulty.
• The ignition switch is turned on again within 2 hours.

Condition Possible cause Correction / Reference Item
Cigarette lighter shows
no operationCircuit fuse blownReplace fuse and check for short circuit.
Cigarette lighter faultyCheck cigarette lighter.
Ignition switch faultyCheck ignition switch referring to “Ignition
Switch Inspection”.
Wiring or grounding faultyRepair circuit.
Condition Possible cause Correction / Reference Item
Horn does not operateCircuit fuse blownReplace fuse and check for short circuit.
Horn switch faultyCheck horn switch.
Horn relay faultyCheck horn relay referring to “Horn Relay
Inspection”.
Wiring or grounding faultyRepair circuit.
Horn faultyCheck horn referring to “Horn Inspection”.
Condition Possible cause Correction / Reference Item
No displaying of
information displayCircuit fuse BlownReplace fuse and check for short circuit.
Wiring or grounding faultyRepair circuit.
Information display unit faultyReplace unit.
Incorrect thermometer
displayOutside air temperature sensor faultyCheck outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Vehicle speed signal faultyCheck ECM for DTC referring to “DTC Check
in Section 1A”.
Wiring or grounding faultyRepair circuit.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Display of thermometer
does not change at –30
°C
(–22
°F)Outside air temperature is –30 °C (–22
°F) or less—
Outside air temperature sensor faultyCheck outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty.

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-11
Clock System Diagnosis (If Equipped)S6RW0D9304016
Display of thermometer
does not change at 50
°C
(122
°F)Outside air temperature is 50 °C (122
°F) or more—
Outside air temperature sensor faultyCheck outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Display of thermometer
does not change at “- - -
°C (°F)”Outside air temperature sensor faultyCheck outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Outside air temperature sensor circuit is
open or shortRepair circuit.
Wiring or grounding faultyRepair circuit.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Display of fuel
consumption does not
change at “- - - l / 100 km
(km/l, MPG)”Vehicle is not running (instantaneous
fuel consumption mode)—
Fuel consumption was reset (average
fuel consumption mode, if equipped)Vehicle runs for a while.
Vehicle speed signal faultyCheck ECM for DTC referring to “DTC Check
in Section 1A”.
Wiring or grounding faultyRepair circuit.
CAN communication data (information)
can not be received by BCMCheck BCM for DTC referring to “DTC Check
in Section 10B”.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty. Condition Possible cause Correction / Reference Item
Condition Possible cause Correction / Reference Item
No displaying of clockCircuit fuse blownReplace fuse and check for short circuit.
Wiring or grounding faultyRepair circuit.
Clock unit faultyReplace unit.

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-13
Auto Volume Control System
Remote Audio Control Switch Symptom Diagnosis (If Equipped)S6RW0D9304018
Navigation Symptom Diagnosis (If Equipped)S6RW0D9304019
CD player is operative,
but all speakers does not
soundWiring or grounding faultyRepair circuit.
Radio assembly faultyReplace radio assembly.
Individual speaker is
noisy or inoperativeWiring or grounding faultyRepair circuit.
Speaker faultyReplace speaker.
Radio assembly faultyReplace radio assembly.
Sound quality or volume
is poorCD-ROM faulty—
Wiring or grounding faultyRepair circuit.
Speaker installed incorrectlyInstall correctly.
Speaker faultyReplace speaker. Condition Possible cause Correction / Reference Item
Condition Possible cause Correction / Reference Item
Sound volume does not
vary according to
changes of vehicle speedAuto volume control system is “OFF”
modeSelect auto volume control.
Vehicle speed signal faultyCheck vehicle speed signal referring to
“Vehicle Speed Signal Inspection (For Audio
Unit) (If Equipped)”.
Wiring or grounding faultyRepair circuit.
BCM faultyCheck input and output signal of BCM referring
to “Inspection of BCM and Its Circuits in
Section 10B”.
Radio assembly faultyReplace radio assembly.
Condition Possible cause Correction / Reference Item
Audio system is
operative, but remote
control switch does not
control audio systemRemote audio control switch faultyCheck remote audio control switch referring to
“Remote Audio Control Switch Inspection (If
Equipped)”.
Contact coil faultyReplace contact coil.
Wiring or grounding faultyRepair circuit.
Radio assembly faultyReplace radio assembly.
Condition Possible cause Correction / Reference Item
No displaying of
navigationCircuit fuse BlownReplace fuse and check for short circuit.
Wiring or grounding faultyRepair circuit.
Navigation unit faultyReplace unit.

Downloaded from www.Manualslib.com manuals search engine 9C-22 Instrumentation / Driver Info. / Horn:
Remote Audio Control Switch Inspection (If
Equipped)
S6RW0D9306025
1) Remove driver air bag (inflator) module referring to
“Driver Air Bag (Inflator) Module Removal and
Installation in Section 8B”.
2) Disconnect remote audio control switch connector
from contact coil.
3) Check switch for resistance between “a” and “b”
terminals under each condition below.
If check result is not satisfactory, replace remote
audio control switch.
Remote audio control switch resistance
All switches released (OFF): 5119 – 5223 Ω
Switch “1” pushing on (ON): 55 – 57 Ω
Switch “2” pushing on (ON): 129 – 133 Ω
Switch “3” pushing on (ON): 238 – 244 Ω
Switch “4” pushing on (ON): 416 – 426 Ω
Switch “5” pushing on (ON): 743 – 759 Ω
Switch “6” pushing on (ON): 1555 – 1587 Ω
Vehicle Speed Signal Inspection (For Audio
Unit) (If Equipped)
S6RW0D9306026
Check vehicle speed pulse output signal of BCM
referring to “Reference waveform No.7” under
“Inspection of BCM and Its Circuits in Section 10B”.
Specifications
Tightening Torque SpecificationsS6RW0D9307001
NOTE
The specified tightening torque is also described in the following.
“Audio System Component Location”

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
[A]: With cruise control system
[B]: Without cruise control system
1
2
34
5
6
“b” “a”
“b” “a” [A]
[B]
I6RW0D930004-01
Fastening partTightening torque
Note
N⋅mkgf-mlb-ft
Instrument panel mounting bolt 23 2.3 17.0)
Antenna base mounting bolt 5.0 0.5 4.0)

Downloaded from www.Manualslib.com manuals search engine Wipers / Washers: 9D-1
Body, Cab and Accessories
Wipers / Washers
Diagnostic Information and Procedures
Front Wiper and Washer Symptom DiagnosisS6RW0D9404001
Rear Wiper and Washer Symptom DiagnosisS6RW0D9404002
Condition Possible cause Correction / Reference Item
Wiper malfunctionsCircuit fuse blownReplace fuse and check for short circuit.
Wiper motor faultyCheck wiper motor referring to “Windshield
Wiper Motor Inspection”.
Combination switch (wiper switch) faultyCheck wiper switch referring to “Windshield
Wiper and Washer Switch Inspection”.
Wiring or grounding faultyRepair circuit.
Washer malfunctionsWasher hose or nozzle cloggedClean or repair clogged hose or nozzle.
Circuit fuse blownReplace fuse and check for short circuit.
Washer pump faultyCheck washer pump referring to “Washer
Pump Inspection”.
Combination switch (washer switch)
faultyCheck washer switch referring to “Windshield
Wiper and Washer Switch Inspection”.
Wiring or grounding faultyRepair circuit.
Condition Possible cause Correction / Reference Item
Wiper malfunctions
NOTE
• Use of SUZUKI scan
tool makes it easy to
check whether a faulty
condition is on the
input side or output
side of BCM. For
checking procedure,
refer to “Diagnosis
Using Output Test
Function of SUZUKI
Scan Tool” under
“Scan Tool Data in
Section 10B”.
• Check each part in the
order from the top of
the following list.

Circuit fuse blownReplace fuse and check for short circuit.
Wiper motor faultyCheck wiper motor referring to “Rear Wiper
Motor Inspection”.
Combination switch (wiper switch) faultyCheck wiper switch referring to “Rear Wiper
and Washer Switch Inspection”.
Rear wiper relay faultyCheck rear wiper relay referring to “Rear Wiper
Relay Inspection”.
Wiring or grounding faultyRepair circuit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Washer malfunctionsWasher hose or nozzle cloggedClean or repair clogged hose or nozzle.
Circuit fuse blownReplace fuse and check for short circuit.
Washer pump faultyCheck washer pump referring to “Washer
Pump Inspection”.
Combination switch (washer switch)
faultyCheck washer switch referring to “Rear Wiper
and Washer Switch Inspection”.
Wiring or grounding faultyRepair circuit.

Downloaded from www.Manualslib.com manuals search engine 9E-1 Glass / Windows / Mirrors:
Body, Cab and Accessories
Glass / Windows / Mirrors
Precautions
Precautions for Power Window Service (Pinching Prevention Function Model)S6RW0D9500001
WARNING!
When checking the pinching prevention function, never attempt intentionally to have your hand, arm
or any other part of the body pinched. Also, use full care not to have your body caught.

• Do not drop the power window regulator (motor) or expose it to a strong impact in any other way.
• Do not operate the motor unless the power window regulator (motor) is installed and ready to operate door glass.
• If any peripheral part has bean damaged, replace regulator (motor) as well depending on the damage condition.
• After replacing or disconnecting the driver side power window regulator (motor), power window main switch, battery
and/or fuse, make sure to execute the initial setting, (to have the door glass closed position learned) refer to “Power
Window Main Switch Initialization (Pinching Prevention Function Model)”.
General Description
Rear End Door Window Defogger System DescriptionS6RW0D9501001
The rear end door window defogger is controlled by BCM. For the BCM description refer to “BCM General Description
in Section 10B”.

Downloaded from www.Manualslib.com manuals search engine 9E-3 Glass / Windows / Mirrors:
Diagnostic Information and Procedures
Rear End door Window Defogger Symptom DiagnosisS6RW0D9504001
NOTE
• Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or
output side of BCM. For checking procedure, refer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool” under “Scan Tool Data in Section 10B”.
• Check each part in the order from the top of the following list.

Power Window Control System Symptom DiagnosisS6RW0D9504002
Condition Possible cause Correction / Reference Item
Rear end door window
defogger does not
operateCircuit fuse blownReplace fuse and check for short circuit.
Rear end door window defogger switch
faultyCheck rear end door window defogger switch
referring to “Rear End Door Window Defogger
Switch Inspection”.
Rear end door window defogger relay
faultyCheck rear end door window defogger relay
referring to “Rear End Door Window Defogger
Relay Inspection”.
Defogger wire faultyCheck defogger wire referring to “Rear End
Door Window Defogger Wire Inspection”.
Wiring or grounding faultyRepair circuit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Condition Possible cause Correction / Reference Item
All power windows do not
operateCircuit fuse blownReplace fuse and check for short circuit.
Power window main switch faultyCheck power window main switch referring to
“Power Window Main Switch Inspection”.
Ignition switch faultyCheck ignition switch referring to “Ignition
Switch Inspection in Section 9C”.
Wiring or grounding faultyRepair circuit.
Only one power window
does not operatePower window main switch faultyCheck power window main switch referring to
“Power Window Main Switch Inspection”.
Power window sub switch faultyCheck power window sub switch referring to
“Power Window Sub Switch Inspection”.
Wiring and/or coupler faultyCheck wiring and/or coupler.
Power window regulator faultyCheck window regulator.
Power window motor faultyCheck power window motor.
Wiring or grounding faultyRepair circuit.
Driver side door glass
fails to perform auto-up /
auto-down function
(Pinching Prevention
Function Model)Power window main switch faultyCheck power window main switch referring to
“Power Window Main Switch Inspection”.
Power window motor faultyCheck power window motor referring to “Pulse
Sensor and Its Circuit Inspection (Pinching
Prevention Function Model)”.
Wiring or grounding faultyRepair circuit.
Driver side door glass
fails to lower back even
when a foreign matter is
pinched (Pinching
Prevention Function
Model)Power window main switch has not been
initializedExecute the initial setting of power window
main switch referring to “Power Window Main
Switch Initialization (Pinching Prevention
Function Model)”.
Power window main switch faultyCheck power window main switch referring to
“Power Window Main Switch Inspection”.
Power window motor faultyCheck power window motor referring to “Pulse
Sensor and Its Circuit Inspection (Pinching
Prevention Function Model)”.

Downloaded from www.Manualslib.com manuals search engine 9E-5 Glass / Windows / Mirrors:
Door Mirror Heater Symptom Diagnosis (If Equipped)S6RW0D9504004
NOTE
• Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or
output side of BCM. For checking procedure, refer to “Diagnosis Using Output Test Function of
SUZUKI Scan Tool” under “Scan Tool Data in Section 10B”.
• Check each part in the order from the top of the following list.

Repair Instructions
Windshield ComponentsS6RW0D9506001
Condition Possible cause Correction / Reference Item
All door mirror heaters
does not operateCircuit fuse blownReplace fuse and check for short circuit.
Rear end door window defogger switch
faultyCheck rear end door window defogger switch
referring to “Rear End Door Window Defogger
Switch Inspection”.
Rear end door window defogger relay
faultyCheck rear end door window defogger relay
referring to “Rear End Door Window Defogger
Relay Inspection”.
Wiring or grounding faultyRepair circuit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Only one door mirror
heater does not operateDoor mirror heater faultyCheck door mirror heater refiring to “Door
Mirror Heater Inspection (If Equipped)”.
Wiring or grounding faultyRepair circuit.
3 31
2
44
4
I5RW0A950001-02
1. Windshield glass 3. Windshield glass stopper : Do not reuse.
2. Windshield molding 4. Spacer

Downloaded from www.Manualslib.com manuals search engine 9F-1 Security and Locks:
Body, Cab and Accessories
Security and Locks
General Description
Key Coding ConstructionS6RW0D9601001
Key Usage and Identification
Key is used for ignition and door lock cylinders. Key is cut on both edges to make them reversible.
Key identification is obtained from five character key code stamped on key code tag. Using this key code, key code
cutting combination can be determined from a code list (available to owners of key cutting equipment from suppliers).
Rear End Door Opener System DescriptionS6RW0D9601002
Rear end door opener system consists of rear end door opener switch (1), rear end door opener relay (in BCM), rear
end door lock assembly (2) and BCM (3).
Rear end door opener system is activated by pushing rear end door opener switch after all doors are unlocked by
manual door switch, key cylinder switch, keyless entry transmitter or request switch (5) (if equipped).
When rear end door opener switch pushed rear end door opener relay is ON. Then, BCM releases latch of rear end
door lock assembly from striker and rear end door can be opened.
In addition, in case that rear end door cannot be opened by rear end door opener switch, rear end door can be opened
by emergency lever (4) in rear end door lock assembly.
4
2
1
5
3
[A]
[B]
3
I6RW0C960001-01
[A]: Junction block with BCM type
[B]: Junction block without BCM type

Downloaded from www.Manualslib.com manuals search engine Security and Locks: 9F-2
Component Location
Power Door Lock and Keyless Entry System Component Location (If Equipped)S6RW0D9603001
3
7
4
5
6
1
2
8
9I6RW0C960002-01
1. Keyless entry receiver 4. Front door actuator 7. Door switch
2. Transmitter 5. Rear door actuator 8. BCM (junction block with BCM type)
3. Power door lock switch 6. Rear end door actuator 9. BCM (junction block without BCM type)