2006 SUZUKI SX4 meter

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-6
The air bag system is designed to activate only in severe
frontal “a” and sideward “b” collisions. It is not designed
to activate in rear impacts, rollovers, or minor frontal and
sideward collisions, since it would offer no protection in
those types of accidents.
Air Bag System Block DiagramS6RW0D8201004
I6RW0C820019-01
Battery Voltage
Forward Impact-Sensor
Driver Side Impact-Sensor
Passenger Side Impact-Sensor
DC / DC Converter
Back Up Capacitor
Safing Power Driver
Mechanical Longitudinal G Sensor (switch)
X-Y G sensor
(Longitudinal /
Lateral Acceleration)
Driver Side-Air Bag
Driver Side Curtain-Air Bag
Passenger Side Curtain-Air Bag
Passenger Side-Air Bag
Passenger Seat Belt Pretensioner
Driver Seat Belt Pretensioner
Passenger Air Bag
Driver Air Bag
INPUTOUTPUTSDM
Front Air
Bag and
Seat Belt
Preten-
tioner
Deploy-
ment
Driver
Side
Air Bag
Deploy-
ment
Driver
Side
Curtain
Air Bag
Deploy-
ment
Driver
Main CPU
BCM and Cmbination Meter
I6RW0C820001-01

Downloaded from www.Manualslib.com manuals search engine 8B-9 Air Bag System:
Terminal arrangement of SDM (viewed from harness side)
[A]: Shorting bar 11. BCM 25. Driver seat belt pretensioner
[B]: Connector 12. Combination meter 26. Passenger seat belt pretensioner
[C]: Junction block with BCM model 13. “AIR BAG” warning light27. Driver side-air bag (inflator) module (8-channel system)
[D]: Junction block without BCM model 14. Light driver 28. Passenger side-air bag (inflator) module (8-channel system)
1. Battery 15. SDM 29. Driver side curtain-air bag (inflator) module (8-channel
system)
2. Main fuse 16. To HVAC control module (auto A/C model) 30. Passenger side curtain-air bag (inflator) module (8-channel
system)
3. Fuse 17. Data link connector (DLC) 31. Safing power driver
4. Individual circuit fuse box No.1 18. Forward impact-sensor 32. X-Y-G (longitudinal / lateral acceleration)
5. “IGN” fuse 19. Driver side impact-sensor (8-channel
system)33. DC / DC converter
6. Ignition switch 20. Passenger side impact-sensor (8-channel
system)34. Mechanical longitudinal G sensor (switch)
7. Junction block assembly 21. Ground for air bag system 35. Back up capacitor
8. “DOME” fuse 22. Contact coil assembly
9. “METER” fuse 23. Driver air bag (inflator) module
10. “A/B” fuse 24. Passenger air bag (inflator) module
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
1
I7RW01822003-02
1. SDM Connector “L04”

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-12
Diagnostic Information and Procedures
Air Bag Diagnostic System CheckS6RW0D8204001
WARNING!
To avoid deployment when troubleshooting
the air bag system, do not use electrical test
equipment such as a battery powered or AC
powered voltmeter, ohmmeter, etc., or any
type of electrical equipment other than that
specified in this manual. Do not use a non-
powered probe type tester.
Instructions in this manual must be followed
carefully, otherwise personal injury may
result.

CAUTION!
• The order in which DTCs are diagnosed is
very important. Failure to diagnose the
DTCs in the order specified may result in
extended diagnostic time, incorrect
diagnosis and incorrect parts replacement.
• When measurement of resistance or
voltage is required in the flow, use a tester
along with a correct terminal adapter from
special tool (Connector test adapter kit).
• When a check for proper connection is
required, refer to “Inspection of
Intermittent and Poor Connections”.
• If an open circuit in the air bag wire
harness damaged, connector or terminal is
found, replace the wire harness,
connectors and terminals as an assembly.

The diagnostic procedures used are designed to find
and repair air bag system malfunctions.
To get the best results, it is important to use the
diagnostic flow and follow the sequence in the following.
1) Perform the “Air Bag Diagnostic System Check
Flow”.
(The “Air Bag Diagnostic System Check Flow” must
be the starting point of any air bag system diagnosis.
The “Air Bag Diagnostic System Check Flow” checks
for proper “AIR BAG” warning light operation through
“AIR BAG” warning light and whether air bag DTCs
exist.)
2) Refer to the proper diagnostic flow as directed by the
“Air Bag Diagnostic System Check Flow”.
(The “Air Bag Diagnostic System Check Flow” will
lead you to the correct flow to diagnose any air bag
system malfunctions. Bypassing these procedures
may result in extended diagnostic time, incorrect
diagnosis and incorrect parts replacement.)
3) Repeat the “Air Bag Diagnostic System Check Flow”
after any repair or diagnostic procedures have been
performed.
(Performing the “Air Bag Diagnostic System Check
Flow” after all repair or diagnostic procedures will
ensure that the repair has been made correctly and
that no other malfunctions exist.)
A: Combination meter 6. Side curtain-air bag (inflator) module (8-
channel system)14. “A/B” fuse in junction block assembly
B: Steering wheel 7. Contact coil assembly 15. Air bag harness in main harness
C: Seat 8. Forward impact-sensor 16. Air bag harness in instrument panel harness
1. “AIR BAG” warning light 9. Apron-side-member (driver side) 17. Air bag harness in floor harness
2. Driver air bag (inflator) module 10. Side impact-sensor (8-channel system) 18. Side-air bag harness (8-channel system)
3. Passenger air bag facing cover 11. Side sill inner panel 19. Side curtain-air bag harness (8-channel
system)
4. Passenger air bag (inflator) module 12. SDM 20. Ground for air bag system
5. Side-air bag (inflator) module (8-channel
system)13. Seat belt pretensioner

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-14
DTC TableS6RW0D8204003
NOTE
The DTCs (B1022 and B1023) shown with asterisk (*) below have been established only for the M15A
engine model with 4A/T equipped with slip-control (i.e., Hong Kong model). These codes are meant to
be recorded when External Scrapping Deployment Controller is operated by a Japanese authorized
special scrapping trader. Therefore, normally these codes will not appear outside Japan. However,
should these codes be detected, SDM must be replaced because the cause is due to SDM detection
failure.

SDM DTC
DTC No. Detecting itemDetecting condition
(DTC will set when detecting)Trouble area
—Normal — —
) B1013 SDM internal failureMalfunctioned SDM internal
circuit, G sensor, memory or
CPU.•SDM
) B1014 “AIR BAG” warning light circuit“AIR BAG” warning light circuit
has been shorted to ground,
shorted to power or opened for
more than 4 sec.• “AIR BAG” warning light circuit
• Combination meter
•SDM
) B1016 Power supply voltage too highPower supply voltage is more
than 21.4 V for, more than 16
sec.• Charging system
•SDM
) B1017 Power supply voltage too lowPower supply voltage is less
than 7.2 V for more than 16 sec.• Charging system
•SDM
) B1021Front air bag deployment
recordDeployment of front air bag has
been recorded in SDM.If this DTC has been recorded
even though air bag has not
been deployed
•SDM
• Driver and/or Passenger air
bag module
• Those initiator circuit.
*B1022Scrapping deployment
controller activatedScrapping deployment command
has been input to SDM from
external scrapping deployment
controller•SDM
*B1023 Scraping deployment recordScrapping deployment execution
has been recorded in SDM•SDM
) B1024Driver side-air bag deployment
recordDeployment of driver side-air
bag has been recorded in SDM.If this DTC has been recorded
even though side-air bag has not
been deployed
•SDM
• Driver side-air bag module
• Its initiator circuit
) B1025Passenger side-air bag
deployment recordDeployment of passenger side-
air bag has been recorded in
SDM.If this DTC has been recorded
even though side-air bag has not
been deployed
•SDM
• Passenger side-air bag
module
• Its initiator circuit

Downloaded from www.Manualslib.com manuals search engine 8B-19 Air Bag System:
Scan Tool Data Definition
Buck Up Volt (V)
This parameter indicates the capacity of the backup
capacitor installed to maintain the ignition current (as
much as possible) even when the power supply to SDM
that ignites the inflator is shut off.
Battery Voltage (V)
Battery voltage is an analog input signal read by SDM.
Dirv Air Bag Ini Res (Driver air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the driver air
bag initiator circuit.
Pass Air Bag Ini Res (Passenger air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the passenger
air bag initiator circuit.
Driv Preten Ini Res (Driver pretensioner initiator
resistance) (ohm)
This parameter indicates the resistance of the driver seat
belt pretensioner initiator circuit.Pass Preten Ini Res (Passenger pretensioner
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
seat belt pretensioner initiator circuit.
Driv Sidebag Ini Res (Driver side-air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the driver
side-air bag initiator circuit.
Pass Sidebag Ini Res (Passenger side-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
side-air bag initiator circuit.
Driv curtain Ini RES (Driver side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the driver side
curtain-air bag initiator circuit.
Pass curtain Ini RES (Passenger side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
side curtain-air bag initiator circuit.
System ID (4ch/8ch)
This parameter indicates the number of initiator circuits.
“AIR BAG” Warning Light Comes ON SteadyS6RW0D8204007
Wiring Diagram
“L04”14
5
9RED
RED/BLK GRN
YEL/BLK
BLK
8 7
11
12
15
L04-2
L04-28
L04-27
“G241” “G271” “L313”
13
12V
6
1BLK
WHT WHT
WHT/RED 2
34
310 BLK
“G273”
“E324”
I6RW0C820005-01
1. Battery 5. “IGN” fuse 9. “METER” fuse 13. Light driver
2. Main fuse 6. Ignition switch 10. “DOME” fuse 14. SDM
3. Fuse 7. Junction block assembly 11. Combination meter 15. Ground for SDM
4. Individual circuit fuse box No.1 8. “A/B” fuse 12. “AIR BAG” warning light

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-20
Troubleshooting
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2SDM power supply and ground circuit check
1) Check SDM power supply and ground circuit referring to
“SDM Power Supply and Ground Circuit Check”.
Is SDM power supply and ground circuit in good condition?Go to Step 3. Repair defective power
supply and ground
circuit.
3“AIR BAG” warning light circuit check
1) Disconnect combination meter connector “G241”
referring to “Combination Meter Removal and Installation
in Section 9C”.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM connector at
terminal “L04-2”.
4) Check for proper connection to combination meter at
terminal “G241-5”.
5) If OK, measure resistance between “G241-5” and “L04-
2” terminals.
Special tool
(A): 09932–76010
Is measured resistance 1
Ω or less?Go to Step 4. Repair “YEL/BLK” wire
(between combination
meter and SDM
connector) for open or
high resistance.
4“AIR BAG” warning light circuit check
1) Measure resistance between “L04-2” terminal and body
ground.
Special tool
(A): 09932–76010
Is measured resistance infinity?Go to Step 5. Repair “YEL/BLK” wire
(between combination
meter and SDM
connector) for short to
ground.
(A)
“L04-2”
“G241-5”
I7RW01822006-01
“L04-2”(A)
I7RW01822007-01

Downloaded from www.Manualslib.com manuals search engine 8B-21 Air Bag System:
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

5“AIR BAG” warning light circuit check
1) Connect SDM connector “L04” and combination meter
connector “G241”.
2) With ignition switch turned ON, measure voltage
between “G241-5” terminal and body ground.
Special tool
(A): 09932–76010
Is measured voltage in 8 – 12 V?Replace combination
meter.Go to Step 6.
6“AIR BAG” warning light circuit check
1) Disconnect combination meter connector “G241”.
2) Measure voltage between “G241-5” terminal and body
ground.
Special tool
(A): 09932–76010
Is measured voltage in 10 – 14 V?Replace combination
meter.Replace SDM. Step Action Yes No
“G241-5”(A)
I7RW01822008-01
“G241-5”(A)
I7RW01822008-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-22
“AIR BAG” Warning Light Does Not Come ONS6RW0D8204008
Wiring Diagram
Refer to ““AIR BAG” Warning Light Comes ON Steady”.
Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Combination meter power feed circuit check
1) Set parking brake.
2) Note combination meter when ignition switch is turned
ON.
Does the “BRAKE” indicator (warning light) come ON?Go to Step 3. Check combination
meter power and
ground circuit referring
to “C-1 Combination
Meter Circuit Diagram
(Meter) in Section 9A”.
3“AIR BAG” warning light circuit check
1) Disconnect SDM connector “L04”.
2) Note combination meter when ignition switch is turned
ON.
Does the “AIR BAG” warning light come ON?Substitute a known-
good SDM and recheck.Go to Step 4.
4“AIR BAG” warning light circuit check
1) Disconnect SDM connector “L04”.
2) With ignition switch turned ON, measure voltage
between “L04-02” terminal and body ground.
Special tool
(A): 09932–76010
Is measured voltage 0 V?Replace combination
meter.Repair “YEL/BLK”
circuit for short to power
circuit.
(A)“L04-2”
I7RW01822135-01