2008 SUZUKI SWIFT Dlc

Downloaded from www.Manualslib.com manuals search engine 8B-8 Air Bag System:
Terminal arrangement of SDM (viewed from harness side)
Connector “L29” (SDM connector)
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26
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I7RS0A820003-02
1. SDM Connector “L29”
Terminal Terminal
symbol Circuit Terminal Terminal
symbol Circuit
L29-1 — — L29-27 IG Ignition switch (power source)
L29-2 WL “AIR BAG” warning right L29-28 E1 Ground
L29-3 D– Driver air bag (–) L29-29 — —
L29-4 D+ Driver air bag (+) L29-30 — —
L29-5 P+ Passenger air bag (+) L29-31 — —
L29-6 P– Passenger air bag (–) L29-32 ST DLC
L29-7 DP– Driver seat belt pretensioner (–) L29-33 — —
L29-8 DP+ Driver seat belt pretensioner (+) L29-34 — —
L29-9 PP+ Passenger seat belt pretensioner (+) L29-35 — —
L29-10 PP– Passenger seat belt pretensioner (–) L29-36 — — L29-11 DS– Driver side-air bag (–) (If equipped ) L29-37 ADS Air bag deployed signal for BCM
L29-12 DS+ Driver side-air bag (+) (If equipped) L29-38 — —
L29-13 PS+ Passenger side-air bag (+) (If
equipped) L29-39 — —
L29-14 PS– Passenger side-air bag (–) (If
equipped) L29-40 — —
L29-15 — — L29-41 — —
L29-16 — — L29-42 — —
L29-17 — — L29-43 — —
L29-18 — — L29-44 SP– Passenger side-sensor (–)
L29-19 DC– Driver side curtain-air bag (–) L29-45 SP+ Passenger side-sensor (+)
L29-20 DC+ Driver side curtain-air bag (+) L29-46 SD+ Driver side-sensor (+)
L29-21 PC+ Passenger side curtain-air bag (+) L29-47 SD– Driver side-sensor (–)
L29-22 PC– Passenger side curtain-air bag (–) L29-48 — —
L29-23 — — L29-49 — —
L29-24 — — L29-50 FD+ Forward-sensor (+)
L29-25 — — L29-51 FD– Forward-sensor (–)
L29-26 — — — — —

Downloaded from www.Manualslib.com manuals search engine 8B-12 Air Bag System:
DTC CheckS7RS0B8204004
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (DLC) located on underside of instrument panel at
driver’s seat side.
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch to ON position.
4) Read DTC according to instructions displayed on SUZUKI scan tool and print it or write it down. Refer
to SUZUKI scan tool operator’s manual for further
details.
If communication between scan tool and SDM is not
possible, check if scan tool is communicable by
connecting it to SDM in another vehicle. If
communication is possible in this case, scan tool is
in good condition. Then check data link connector
and serial data line (circuit) in the vehicle with which
communication was not possible. 5) After completing the check,
turn ignition switch to
OFF position and disconnect SUZUKI scan tool from
data link connector (DLC) (1).
DTC ClearanceS7RS0B8204005
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (DLC) (1) in the same manner as when making this
connection for DTC check.
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch to ON position.
4) Erase DTC according to instructions displayed on
SUZUKI scan tool. Refer to SUZUKI scan tool
operator’s manual for further details.
5) After completing the clearance, perform “DTC Check” and confirm that normal DTC (NO CODES)
is displayed and not malfunction DTC.
6) Turn ignition switch to OFF position and disconnect SUZUKI scan tool from DLC.
NOTE
If DTC B1013, DTC B1 021 or DTC B1027 is
stored in SDM, it is not possible to clear DTC.

) B1081
Driver side-
sensor Performance
problem
Diagnose
trouble
according to
diagnostic flow
corresponding
to each code
No.
)
B1082 Communicatio
n error
) B1083 Short to ground
) B1084 Short to power
circuit or open
) B1085 Wrong
assembly
) B1091
Passenger
side-sensor Performance
problem
) B1092 Communicatio
n error
) B1093 Short to ground
) B1094 Short to power
circuit or open
) B1095 Wrong
assembly
) B1361
Driver side
curtain-air
bag circuit Resistance
high
) B1362 Resistance low
) B1363 Short to ground
) B1364 Short to power
circuit
) B1365
Passenger
side curtain-
air bag
circuit Resistance
high
) B1366 Resistance low
) B1367 Short to ground
) B1368 Short to power
circuit
DTC Diagnosis
1
(A)I4RS0A820008-01
1(A)I4RS0A820008-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-13
Scan Tool DataS7RS0B8204006
Data list of SDM
Definition
Back Up Volt (V)
This parameter indicates the capacity of the backup
condenser 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.
System ID (4ch/8ch)
This parameter indicates the number of initiator circuits.
Driv A/B Ini Res (Driver air bag initiator resistance)
(ohm)
This parameter indicates the resistance of the driver air
bag initiator circuit. Pass A/B Ini Res (Passenger air bag initiator
resistance) (ohm)
This parameter indicates the
resistance of the passenger
air bag initiator circuit.
Driv Preten Ini Res (Dri ver 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 re sistance 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.
“AIR BAG” Warning Right Comes ON SteadyS7RS0B8204007
Wiring Diagram Normal Condition /
Reference Value
) Battery voltage 10 – 14 V
) Back up volt 27.0 – 33.0 V
) System ID 4ch or 8ch
) Driv A/B Ini Res 2.1 – 3.8 ohm
) Pass A/B Ini Res 1.8 – 2.8 ohm
) Driv Preten Ini Res 1.8 – 2.9 ohm
) Pass Preten Ini Res 1.8 – 2.9 ohm
) Driv Sidebag Ini Res 1.8 – 2.6 ohm
) Pass Sidebag Ini Res 1.8 – 2.6 ohm
) Driv curtain Ini Res 1.8 – 2.8 ohm
) Pass curtain Ini Res 1.8 – 2.8 ohm
1
2 GRN
11
BLK
L29-27
L29-2
L29-28 WL
E1
IG
L29-32
ST
10
8
“L29”
RED
PPL/WHT
7
3
4 “L04”
“G34”
“G33”
“G28”
“G32”
5 6
“G32”
YEL/BLK
YEL/BLK
RED/BLK
9
I7RS0B820002-02
1. From main fuse 5. “AIR BAG” warning right in combination meter 9. To DLC
2. Ignition switch 6. Lamp driver 10. SDM
3. “METER” fuse 7. Junction block assembly 11. Ground for air bag system
4. “A/BAG” fuse 8. BCM

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-15
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.

“AIR BAG” Warning Right Does Not Come ONS7RS0B8204008
Wiring Diagram6 1) Disconnect combination meter connector “G28” referring
to “Combination Meter Removal and Installation in
Section 9C”.
2) Check proper connection to combination meter at “YEL/ BLK” terminal for “AIR BAG” warning right and to SDM at
terminal “L29-2”.
3) If OK, then check resistance between “YEL/BLK” wire terminal of combination meter connector “G28” and
“L29-2” terminal of SDM connector.
Special tool
(A): 09932-76010
Is resistance 1
Ω or less? Substitute a known-
good SDM and recheck.
If “AIR BAG” warning
right remain lighting,
replace combination
meter.
“YEL/BLK” wire
(between combination
meter and SDM
connector) open or
short to ground.
Step Action Yes No
"L29-2"
"G28-12"
(A)
I7RS0A820006-02
12 GRN
11
BLK
L29-27
L29-2
L29-28 WL
E1
IG
L29-32
ST
10
8
“L29”
RED
PPL/WHT
7
3
4 “L04”
“G34”
“G33”
“G28”
“G32”
5 6
“G32”
YEL/BLK
YEL/BLK
RED/BLK
9
I7RS0B820002-02
1. From main fuse 5. “AIR BAG” warning right in combination meter 9. To DLC
2. Ignition switch 6. Lamp driver 10. SDM
3. “METER” fuse 7. Junction block assembly 11. Ground for air bag system
4. “A/BAG” fuse 8. BCM

Downloaded from www.Manualslib.com manuals search engine 8B-16 Air Bag System:
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this 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 there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

Flow Test Description
Step 1: Check combination meter power feed circuit.
Step 2: Check “AIR BAG” warning right circuit.
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.

“AIR BAG” Warning Right FlashesS7RS0B8204009
Wiring Diagram Step Action Yes No
1 1) Set parking brake.
2) Note combination me ter when ignition switch is turned
ON.
Does the “BRAKE” in dicator (warning right) come ON? Go to Step 2. Check and correct the
following possible
cause. • Open circuit in
“GRN” or “WHT/RED”
wire. • Short circuit
between “GRN” or
“WHT/RED” and
ground. • “METER” fuse
blown.
2 1) Disconnect SDM connector “L29”.
2) Note combination me ter when ignition switch is turned
ON.
Does the “AIR BAG” warning right come ON? Substitute a known-
good SDM and recheck.
“BLU/ORN” circuit
shorted to power circuit.
If OK, replace
combination meter.
1
2 GRN
11
BLK
L29-27
L29-2
L29-28 WL
E1
IG
L29-32
ST
10
8
“L29”
RED
PPL/WHT
7
3
4 “L04”
“G34”
“G33”
“G28”
“G32”
5 6
“G32”
YEL/BLK
YEL/BLK
RED/BLK
9
I7RS0B820002-02
1. From main fuse 5. “AIR BAG” warning right in combination meter 9. To DLC
2. Ignition switch 6. Lamp driver 10. SDM
3. “METER” fuse 7. Junction block assembly 11. Ground for air bag system
4. “A/BAG” fuse 8. BCM

Downloaded from www.Manualslib.com manuals search engine 8B-128 Air Bag System:
SUZUKI scan tool
—
This kit includes following
items. 1. Tech 2, 2. PCMCIA
card, 3. DLC cable, 4. SAE
16/19 adapter, 5. Cigarette
cable, 6. DLC loop back
adapter, 7. Battery power
cable, 8. RS232 cable, 9.
RS232 adapter, 10. RS232
loop back connector, 11.
Storage case, 12. ) / )

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-18
G: Instrument panel harness (RHD)
G: Instrument panel harness
J/B
9
10
G33
G32 G34 G35
(TO E37)
G36
(TO E38)
G31 G29
G23
G53
G22
G21
G28G59
G20G52G27
G54
G261112G03
(TO L33)G04
(TO L32)
G46
G01
G02
G42
G43
(TO L51) G10
G47
G11
G13G49
G14
G09G25 G24G15
G12G50
G48
G17
G16G51
G19
G18
G06
G05
G
G09
G37
A
BManual A/C
Auto A/C
AB
I7RS0B910906-01
No./Color Connective position No./ColorConnective position
G01/GRN Air intake control ac tuatorG26/YEL Driver inflator
G02/N Keyless receiver G27/N COMB switch
G03/N Floor harness (To L33) G28/GRY COMB meter
G04/YEL Floor harness (To L32) G29/GRN (IF
EQPD) Front fog light switch
G05/N Blower motor G31/N J/C
G06/N Blower motor resister G32/N J/B
G09/N Evaporator temperature sensor G33/N J/B
G10/BLK Passenger inflator G34/N J/B
G11/N Hazard switch G35/GRY Main harness (To E37)
G12/BLU Audio G36/N Main harness (To E38)
G13/N Navigation G37/BLU BCM
G14/GRN Multi information display G42/N (IF
EQPD) KLS ECM
G15/GRY J/C G43/GRY (IF
EQPD) Floor harness (To L51)
G16/N or BLU J/C G46/N Blower motor controller
G17/N J/C G47/BLK Diode
G18/GRN HVAC control switch G48/N Temperature control actuator
G19/BRN Blower speed selector G49/GRN Air flow control actuator
G20/BLK DLC G50/N Inside air temperature sensor
G21/N IG switch G51/GRY Auto A/C unit
G22/N Main switch (Key switch) G52/GRY Auto A/C unit
G23/BLK COMB switch G53/N Sunload sensor
G24/BLK ICM G54/N (IF
EQPD) Steering angle sensor
G25/N COMB switch G59/N (IF
EQPD) J/C

Downloaded from www.Manualslib.com manuals search engine 9A-19 Wiring Systems:
G: Instrument panel harness (LHD)
G: Instrument panel harness
J/B
9
10
G33
G32 G34 G35
(TO E37)
G36
(TO E38)
G29
G40
G23
G53
G22 G21
G28
G20G52
G27G39 G26
G31
1112G03
(TO L33)G04
(TO L32)
G46
G02
G42
G43
(TO L51)
G10
G47G11
G13G01
G14
G49
G50G48
G25
G24
G12
G17
G16G51G19
G18
G06
G05
G
G09
G37
I5RS0C910910-03
No./Color Connective position No./ColorConnective position
G01/GRN Air intake control ac tuatorG26/YEL Driver inflator
G02/N Keyless receiver G27/N COMB switch
G03/N Floor harness (To L33) G28/GRY COMB meter
G04/YEL Floor harness (To L32) G29/GRN (IF
EQPD) Front fog light switch
G05/N Blower motor G31/N J/C
G06/N Blower motor resister G32/N J/B
G09/N Evaporator temperature sensor G33/N J/B
G10/BLK Passenger inflator G34/N J/B
G11/N Hazard switch G35/GRY Main harness (To E37)
G12/BLU Audio G36/N Main harness (To E38)
G13/N Navigation G37/BLU BCM
G14/GRN Multi information display G39/N (IF
EQPD) DRL controller
G15/GRY J/C G40/N (IF
EQPD) Headlight leveling switch
G16/N J/C G42/N (IF
EQPD) KLS ECM
G17/N J/C G43/GRY (IF
EQPD) Floor harness (To L51)
G18/GRN HVAC control switch G46/N Blower motor controller
G19/BRN Blower speed selector G47/BLK Diode
G20/BLK DLC G48/N Temperature control actuator
G21/N IG switch G49/GRN Air flow control actuator
G22/N Main switch (Key switch) G50/N Inside air temperature sensor
G23/BLK COMB switch G51/GRY Auto A/C unit
G24/BLK ICM G52/GRY Auto A/C unit
G25/N COMB switch G53/N Sunload sensor