2006 SUZUKI SX4 light

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

Downloaded from www.Manualslib.com manuals search engine 8B-23 Air Bag System:
Serial Data Link Circuit CheckS6RW0D8204051
Wiring Diagram
1
2
3
3
18
12V
RED 7
14 9
10
“L313”
“G273”
YEL/BLKL04-2
L04-27 “L04”
PPL/WHT
“G04”L04-3212V
8
GRN
15
+BB
56WHTWHT
4
BLUBLU
BLK
16
11
12
“G241”
13
BLK
L04-28
RED/BLK
WHT/REDYEL/BLK
BLK“G271”
“G272”
WHT/RED
BLK/
ORNBLK
B
C
A A
A
17
[A]
A
[B]
12V
PPL/WHTYEL14
17A
A
YELL04-37
12V
I6RW0C820006-01
[A]: Junction block with BCM model 4. Individual circuit fuse box No.1 12. “METER” fuse
[B]: Junction block without BCM model (That
is, TAIWAN spec model)5. “IGN” fuse 13. “A/B” fuse
A: Serial data circuit 6. Ignition switch 14. BCM
B: DLC power supply circuit 7. Combination meter 15. Data link connector (DLC)
C: DLC ground circuit 8. “AIR BAG” warning light 16. Ground for air system
1. Battery 9. Light driver 17. To HVAC control module (auto A/C model)
2. Main fuse 10. Junction block assembly 18. SDM
3. Fuse 11. “DOME” fuse

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-24
Troubleshooting
Step Action Yes No
1“AIR BAG” warning light check
1) Turn ignition switch to ON position.
Does “AIR BAG” warning light come ON steady?Go to ““AIR BAG”
Warning Light Comes
ON Steady”.Go to Step 2.
2Scan tool condition check
1) Make sure that SUZUKI scan tool is as follows.
• Correct PCMCIA card (software) is used.
• There are no deformation and wear for DLC cable
terminals.
• Connection for DLC cable terminals is in good
condition.
Are they OK?Go to Step 3. Repair or replace
defective part.
3Scan tool operation check
1) Check DLC terminal for deformation and wear.
2) If it is in good condition, connect SUZUKI scan tool to
DLC with ignition switch turned OFF.
3) Check if communication is possible by making
communication with other control modules (BCM, ABS
control module, HVAC control module (auto A/C model)
or P/S control module).
Is it possible to communicate with the other control
modules?Go to Step 4. Go to Step 6.
4Serial communication circuit check
1) With ignition switch turned OFF, disconnect SDM
connector “L04” and check for proper connection at
SDM connector terminal.
2) If connections are OK, check that “Serial data circuit” is
as follows.
• Wiring resistance of “Serial data circuit” wire between
DLC and SDM connector is less than 1 Ω.
Is it resistance less than 1
Ω?Go to Step 5. “Serial data circuit” is
open or high resistance.
5SDM power and ground circuit check
1) Check power supply circuit and ground circuit for SDM
referring to “SDM Power Supply and Ground Circuit
Check”.
Is check result in good condition?Substitute a known-
good SDM and recheck.Repair or replace
defective circuit.
6DLC power and ground circuit check
1) Check power supply circuit and ground circuit for DLC as
follows.
• Voltage of “DLC power supply circuit” between DLC
terminal and vehicle body ground is 10 – 14 V with
ignition switch turned ON.
• Wire resistance of each “DLC ground circuit” between
DLC terminal and vehicle body ground is less than
1Ω.
Is check result in good condition?Go to Step 7. Repair or replace
defective circuit.

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-26
DTC B1014: “AIR BAG” Warning Light CircuitS6RW0D8204011
Wiring Diagram
Refer to““AIR BAG” Warning Light Comes ON Steady”.
DTC Detecting Condition and Trouble Area
DTC 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.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1016: Power Supply Voltage too HighS6RW0D8204012
Wiring Diagram
DTC Detecting Condition and Trouble AreaDTC detecting condition Trouble area
“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
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Air bag warning light check
In “Air Bag Diagnostic System Check Flow”, was air bag
warning light operation in good condition?Substitute a known
good SDM and recheck.Go to applicable
symptom diagnosis
check flow referring to
““AIR BAG” Warning
Light Comes ON
Steady” or ““AIR BAG”
Warning Light Does Not
Come ON”.
BLK
L04
7
RED
GRN L313
98
L04-28
L04-27
1
2
3
BLK
45 BLK6
ACG
10
12V5V30V
11
I6RW0C820007-01
1. Battery 5. Ignition switch 9. Ground for air bag system
2. Main fuse 6. Junction block assembly 10. DC / DC converter
3. Fuse 7. “A/B” fuse 11. Back up capacitor
4. Generator 8. SDM
DTC detecting condition Trouble area
Power supply voltage is more than 21.4 V for, more than
16 sec.• Charging system
•SDM