impact SUZUKI SX4 2006 1.G Service User Guide

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
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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-10
Connector “L04” (SDM connector)
Terminal Circuit Terminal Circuit
L04-1 — L04-27 Ignition switch (power source)
L04-2 “AIR BAG” warning light L04-28 Ground
L04-3 Driver air bag (–) L04-29 —
L04-4 Driver air bag (+) L04-30 —
L04-5 Passenger air bag (+) L04-31 —
L04-6 Passenger air bag (–) L04-32 DLC
L04-7 Driver seat belt pretensioner (–) L04-33 —
L04-8 Driver seat belt pretensioner (+) L04-34 —
L04-9 Passenger seat belt pretensioner (+) L04-35 —
L04-10 Passenger seat belt pretensioner (–) L04-36 —
L04-11 Driver side-air bag (–) (8-channel
system)L04-37 BCM communication line (air bag deployment
signal)
L04-12 Driver side-air bag (+) (8-channel
system)L04-38 —
L04-13 Passenger side-air bag (+) (8-
channel system)L04-39 —
L04-14 Passenger side-air bag (–) (8-
channel system)L04-40 —
L04-15 — L04-41 —
L04-16 — L04-42 —
L04-17 — L04-43 —
L04-18 — L04-44 Passenger side impact-sensor (–) (8-channel
system)
L04-19 Driver side curtain-air bag (–) (8-
channel system)L04-45 Passenger side impact-sensor (+) (8-channel
system)
L04-20 Driver side curtain-air bag (+) (8-
channel system)L04-46 Driver side impact-sensor (+) (8-channel
system)
L04-21 Passenger side curtain-air bag (+)
(8-channel system)L04-47 Driver side impact-sensor (–) (8-channel
system)
L04-22 Passenger side curtain-air bag (–)
(8-channel system)L04-48 —
L04-23 — L04-49 —
L04-24 — L04-50 Forward impact-sensor (+)
L04-25 — L04-51 Forward impact-sensor (–)
L04-26 —

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-16
) B1057Passenger seat belt
pretensioner circuit shorted to
groundPassenger seat belt pretensioner
circuit has been shorted to
ground for more than 4 sec.• Passenger seat belt
pretensioner circuit
•SDM
) B1058Passenger seat belt
pretensioner circuit shorted to
power supplyPassenger seat belt pretensioner
circuit has been shorted to power
circuit for more than 4 sec.
) B1061Driver side-air bag circuit high
resistance Driver side-air bag circuit is more
than 3.7 Ω for more than 4 sec.• Driver side-air bag circuit
• Driver side-air bag module
•SDM ) B1062Driver side-air bag circuit low
resistance Driver side-air bag circuit is less
than 1.0 Ω for more than 4 sec.
) B1063Driver side-air bag circuit
shorted to groundDriver side-air bag circuit has
been shorted to ground for more
than 4 sec.• Driver side-air bag circuit
•SDM
) B1064Driver side-air bag circuit
shorted to power supplyDriver side-air bag circuit has
been shorted to power supply for
more than 4 sec.
) B1065Passenger side-air bag circuit
high resistance Passenger side-air bag circuit is
more than 3.7 Ω for more than 4
sec.• Passenger side-air bag circuit
• Driver side-air bag module
•SDM
) B1066Passenger side-air bag circuit
low resistance Passenger side-air bag circuit is
less than 1.0 Ω for more than 4
sec.
) B1067Passenger side-air bag circuit
shorted to groundPassenger side-air bag circuit
has been shorted to ground for
more than 4 sec.• Passenger side-air bag circuit
•SDM
) B1068Passenger side-air bag circuit
shorted to powerPassenger side-air bag circuit
has been shorted to power circuit
for more than 4 sec.
) B1071Driver forward impact-sensor
communication data
inconsistent Driver forward impact-sensor
has been communicated with no
response or inconsistent ID code
for more than 4 sec.• Driver forward impact-sensor
• Driver forward impact-sensor
circuit
•SDM
) B1072Driver forward impact-sensor
communication data invalid Driver forward impact-sensor
has been communicated with
invalid data for more than 4 sec.• Driver forward impact-sensor
•SDM
)
B1073Driver forward impact-sensor
circuit shorted to groundDriver forward impact-sensor
circuit has been shorted to
ground for more than 4 sec.• Driver forward impact-sensor
• Driver forward impact-sensor
circuit
•SDM ) B1074Driver forward impact-sensor
circuit openDriver forward impact-sensor
circuit has been shorted to power
circuit or opened for more than 4
sec.
) B1081Driver side impact-sensor no
responseDriver side impact-sensor has
been communicated with no
response for more than 4 sec.• Driver side impact-sensor
circuit
• Driver side impact-sensor
•SDM
) B1082Driver side impact-sensor
communication data invalidDriver side impact-sensor has
been communicated with invalid
data for more than 4 sec.• Driver side impact-sensor
•SDM
) B1083Driver side impact-sensor
circuit shorted to groundDriver side impact-sensor circuit
has been shorted to ground for
more than 4 sec.• Driver side impact-sensor
circuit
• Driver side impact-sensor
•SDM ) B1084Driver side impact-sensor
circuit openDriver side impact-sensor circuit
has been shorted to power circuit
or opened for more than 4 sec. DTC No. Detecting itemDetecting condition
(DTC will set when detecting)Trouble area

Downloaded from www.Manualslib.com manuals search engine 8B-17 Air Bag System:
) B1085Driver side impact-sensor
communication data
inconsistent Driver side impact-sensor has
been communicated with
inconsistent ID code for more
than 4 sec.• Driver side impact-sensor
•SDM
) B1091Passenger side impact-sensor
no responseCommunication with passenger
side impact-sensor has been no
response for more than 4 sec.• Passenger side impact-sensor
circuit
• Passenger side impact-sensor
•SDM
) B1092Passenger side impact-sensor
communication data invalidPassenger side impact-sensor
has been communicated with
invalid data for more than 4 sec.• Passenger side impact-sensor
circuit
•SDM
) B1093Passenger side impact-sensor
circuit shorted to groundPassenger side impact-sensor
circuit has been shorted to
ground for more than 4 sec.
• Passenger side impact-sensor
•SDM
) B1094Passenger side impact-sensor
circuit openPassenger side impact-sensor
circuit has been shorted to power
circuit or opened for more than 4
sec.
) B1095Passenger side impact-sensor
communication data
inconsistentPassenger side impact-sensor
has been communicated with
inconsistent ID code for more
than 4 sec.• Passenger side impact-sensor
•SDM
) B1361Driver curtain-air bag circuit
high resistanceDriver curtain-air bag circuit is
more than 3.8 Ω for more than 4
sec. • Driver curtain-air bag circuit
• Driver curtain-air bag module
•SDM
) B1362Driver curtain-air bag circuit low
resistanceDriver curtain-air bag circuit is
less than 1.0 Ω for more than 4
sec.
) B1363Driver curtain-air bag circuit
shorted to groundDriver curtain-air bag circuit has
been shorted to ground for more
than 4 sec.• Driver curtain-air bag circuit
•SDM
) B1364Driver curtain-air bag circuit
shorted to powerDriver curtain-air bag circuit has
been shorted to power circuit for
more than 4 sec.
) B1365Passenger curtain-air bag
circuit high resistancePassenger curtain-air bag circuit
is more than 3.8 Ω for more than
4 sec.• Passenger curtain-air bag
circuit
• Passenger curtain-air bag
module
•SDM ) B1366Passenger curtain-air bag
circuit low resistancePassenger curtain-air bag circuit
is less than 1.0 Ω for more than 4
sec.
) B1367Passenger curtain-air bag
circuit shorted to groundPassenger curtain-air bag circuit
has been shorted to ground for
more than 4 sec.• Passenger curtain-air bag
circuit
•SDM
) B1368Passenger curtain-air bag
circuit shorted to powerPassenger curtain-air bag circuit
has been shorted to power circuit
for more than 4 sec. DTC No. Detecting itemDetecting condition
(DTC will set when detecting)Trouble area

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-28
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 B1021: Front Air Bag Deployment RecordS6RW0D8204014
DTC Detecting Condition and Trouble Area
NOTE
DTC B1201 can never be cleared once it has been set.

DTC TroubleshootingStep 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 wire
circuit.
3DTC B1017 recheck
1) With ignition switch turned OFF, reconnect SDM
connector.
With ignition switch ON, does DTC B1017 exist?Substitute a known-
good SDM and recheck.Intermittent trouble.
Check for intermittent
trouble referring to
“Inspection of
Intermittent and Poor
Connections” If OK,
substitute a known-
good SDM and recheck.
DTC detecting condition Trouble area
Deployment 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.
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Front air bag deployment check
1) Turn OFF ignition switch.
2) Check that DTC B1021 has been set although air bag
has not been deployed.
Has air bag deployed? Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Go to Step 3.
3Front impact sign check
1) Inspect front of vehicle and undercarriage for signs of
impact.
Are there any signs of impact?Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Replace SDM.

Downloaded from www.Manualslib.com manuals search engine 8B-29 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.
• Clear DTCs of BCM referring to “DTC Clearance in Section 10B”.
• Clear DTC B1157 (air bag deployed) of BCM referring to “DTC Clearance in Section 10B”, if any.

DTC B1024 / B1025: Side Air-Bag Deployment RecordS6RW0D8204052
DTC B1024: Driver Side Air-Bag Deployment Record
DTC B1025: Passenger Side Air-Bag Deployment Record
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.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
• Clear DTC B1157 (air bag deployed) of BCM referring to “DTC Clearance in Section 10B”, if any.

DTC B1026: Seat Belt Pretensioner Activation RecordS6RW0D8204016
DTC Detecting Condition and Trouble AreaDTC detecting condition Trouble area
DTC B1024:
Deployment of driver side-air bag has been recorded in
SDM.
DTC B1025:
Deployment 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
• Driver (passenger) side-air bag module
• Its initiator circuit
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Side-air bag deployment check
1) Turn OFF ignition switch.
2) Check that DTC B1024 or B1025 has been set although
side-air bag has not been deployed.
Has air bag deployed?Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Go to Step 3.
3Side impact sign (driver / passenger) check
1) Inspect side of vehicle and undercarriage for signs of
impact.
Are there any signs of impact?Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Replace SDM.
DTC detecting condition Trouble area
Activation of seat belt pretensioner has been recorded in
SDM.If this DTC has been recorded even though pretensioner
has not been activated
•SDM
• Driver and/or Passenger seat belt pretensioner
• Those initiator circuit

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-30
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.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
• Clear DTC B1157 (air bag deployed) of BCM referring to “DTC Clearance in Section 10B”, if any.

DTC B1027: Number of Deployment Times Exceeded LimitS6RW0D8204017
DTC Detecting Condition and Trouble Area
NOTE
DTC B1027 can never be cleared once it has been set.

DTC Trouble shootingStep Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Seat belt pretensioner activation check
1) Turn OFF ignition switch.
2) Check that DTC B1026 has been set although
pretensioner has not been activated.
Has pretensioner activated?Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Go to Step 3.
3Front impact sign check
1) Inspect front of vehicle and undercarriage for signs of
impact.
Are there any signs of impact?Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Replace SDM.
DTC detecting condition Trouble area
Deployment of air bag and/or activation of seat belt
pretensioner have been recorded in SDM 5 times or
more.If this DTC has been recorded even though air bag (front
and side) and pretensioner have not been deployed more
than 4 place.
• SDM (internal fault or reused SDM)
• Each of deployment and activation module
• Those initiator circuit
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 deployment check
1) Turn OFF ignition switch.
2) Check that DTC B1027 has been set although air bag
(front and side) and pretensioner has not been
deployed.
Have air bag and pretensioner deployed more than 4 place?Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Go to Step 3.
3Impact sign check
1) Inspect front, side of vehicle and undercarriage for signs
of impact.
Are there any signs of impact?Inspect and replace
components according
to “Repair and
Inspection Required
after Accident”.Replace SDM.

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-66
DTC B1071: Driver Forward Impact-Sensor Communication Data InconsistentS6RW0D8204034
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 B1072: Driver Forward Impact-Sensor Communication Data InvalidS6RW0D8204035
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 detecting condition Trouble area
Forward impact-sensor has been communicated with no
response or inconsistent ID code for more than 4 sec.• Forward impact-sensor
• Forward impact-sensor circuit
•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”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check SDM for DTC.
Are there any DTC(s) B1073, B1074?Go to applicable DTC
diag. flow.Replace defective
forward impact-sensor
and recheck.
If this DTC still detected,
replace SDM.
DTC detecting condition Trouble area
Forward impact-sensor has been communicated with
invalid data for more than 4 sec.• Forward impact-sensor
•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”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check SDM for DTC.
Are there any DTC(s) B1071, B1073, B1074?Go to applicable DTC
diag. flow.Replace defective
forward impact-sensor
and recheck.
If this DTC still detected,
replace SDM.

Downloaded from www.Manualslib.com manuals search engine 8B-67 Air Bag System:
DTC B1073: Driver Forward Impact-Sensor Circuit Shorted to GroundS6RW0D8204036
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
10
“L04”
“L372” “E388”
“E40”
ORN
PNK/BLKORN
PNK/BLKL04-50
L04-5111
30V
“L04”
BLK
L04-28
6 8
7
RED
GRN“L313”L04-27
9
1
2 BLKWHT3
4
5
12
12V5V30V
13
I6RW0C820012-01
1. Battery 5. Individual circuit fuse box No.1 9. Ground for air bag system 13. Back up capacitor
2. Fuse 6. Ignition switch 10. SDM
3. Main fuse box 7. “A/B” fuse 11. Driver forward impact-sensor
4. “IGN” fuse 8. Junction block assembly 12. DC / DC converter
DTC detecting condition Trouble area
Forward impact-sensor circuit has been shorted to ground
for more than 4 sec.• Forward impact-sensor
• Forward impact-sensor circuit
•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”.
2Forward impact-sensor circuit check
1) Disconnect forward impact-sensor connector “E40”.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM connector at
terminals “L04-50” and “L04-51”.
4) Measure resistance between “L04-50” terminal and body
ground.
Special tool
(A): 09932–76010
Is each measured resistance infinity?Go to Step 3. Repair short to ground
in defective circuit.
“L04-50”“L04-51”
(A)
I7RW01821027-01