bcm SUZUKI SWIFT 2008 2.G Service Owners Manual
[x] Cancel search | Manufacturer: SUZUKI, Model Year: 2008, Model line: SWIFT, Model: SUZUKI SWIFT 2008 2.GPages: 1496, PDF Size: 34.44 MB
Page 1019 of 1496

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-71
ECM Voltage Values Table for Relation of A/C Control
Repair Instructions
Operation Procedure for Refrigerant ChargeS7RS0B7226001
Refer to “Operation Procedure for Refrigerant Charge”.Terminal Wire Color Circuit Normal Value Condition
C37-14 GRY/RED Output of 5 V power 
source 4.5 – 5.5 V Ignition switch turned ON
C37-15 BLK Ground for ECM Below 0.3 V Ignition switch turned ON
C37-24 LT GRN Engine coolant temp. 
(ETC) sensor signal 3.3 – 3.8 V Ignition switch turned ON, ECT at 0 
°C (32 ° F)
1.38 – 1.72 V Ignition switch turned ON, ECT at 50  °C (122  °F)
C37-30 BLK Ground for ECM Below 0.3 V Ignition switch turned ON
C37-55 ORN Ground for sensors Below 0.3 V Ignition switch turned ON
C37-58 BLK/ORN Ground for ECM Below 0.3 V Ignition switch turned ON E23-1 BLK/RED Main power supply 10 – 14 V Ignition switch turned ON
E23-3 RED CAN (high) 
communication line 
(active high signal) 
for BCM and 
combination meterRefer to “DTC P2101: Throttle Actu
ator Control Motor Circuit Range / 
Performance in Section 1A”
E23-16 BLK/RED Main power supply 10 – 14 V Ignition switch turned ON
E23-18 WHT CAN (low) 
communication line 
(active low signal) for 
BCM and 
combination meterRefer to “DTC P2101: Throttle Actu
ator Control Motor Circuit Range / 
Performance in Section 1A”
E23-19 BLU/WHT Electric load signal 
for blower motor 10 – 14 V
Ignition switch turned ON, blower speed selector 
OFF or between 1st and 5th position
0 – 1 V Ignition switch turned ON, blower speed selector 
between 6th and HIGH position
E23-46 LT GRN Radiator fan relay 
No.1 output 10 – 14 V
Ignition switch turned ON, engine coolant temp.: 
below 95 
°C (203 ° F), or A/C refrigerant pressure: 
below 600 kPa (87 psi).
0 – 2 V Ignition switch turned ON, engine coolant temp.: 
97.5 
°C (207.5  °F) or higher, or A/C refrigerant 
pressure: 1100 kPa (159.5 psi) or higher.
E23-47 GRY A/C compressor relay 
output 10 – 14 V Engine running, A/C request signal high input
0 – 1 V Engine running, A/C request signal low input
E23-48 GRN Radiator fan relay 
No.2 and No.3 output 10 – 14 V
Ignition switch turned ON, engine coolant temp.: 
below 100 
°C (212  °F), or A/C  refrigerant 
pressure: below 1200 kPa (174 psi).
0 – 2 V Ignition switch turned ON, engine coolant temp.: 
102.5 
°C (216.5 ° F) or higher, or A/C refrigerant 
pressure: 1500 kPa (217.5 psi) or higher.
E23-55 RED A/C refrigerant 
pressure sensor 
signal 1.46 – 1.71 V
Engine running, A/C refrigerant pressure at 0.8 
MPa (8.0 kg/cm
2) (A/C refrigerant pressure 
measured by manifold gauge)
2.55 – 2.80 V Engine running, A/C refrigerant pressure at 1.6 
MPa (16.0 kg/cm
2) (A/C refrigerant pressure 
measured by manifold gauge)
E23-60 BRN/WHT Main power supply 
relay output 10 – 14 V Ignition switch turned OFF
0 – 2 V Ignition switch turned ON  
Page 1033 of 1496

Downloaded from www.Manualslib.com manuals search engine Seat Belts:  8A-2
Seat Belt with ELR
The seat belt with emergency locking retractor (ELR) is 
designed so that it locks immediately (to prevent the 
webbing from being pulled out of the retractor any 
further) when any of the following items is detected as 
exceeding each set value;
• Speed at which the webbing is pulled out of the retractor.
• Acceleration or deceleration of the vehicle speed.
• Inclination.
Seat Belt with A-ELR
The automatic and emergency locking retractor (A-ELR) 
works as an Emergency Locking Retractor (ELR) till its 
webbing is pulled all the way out and then on as an 
Automatic Locking Retractor (ALR ) till it is retracted fully.
ALR: Automatically locks when  the webbing is pulled out 
from the retractor and allowed to retract even a little. 
Then the webbing can not be pulled out any further, 
unless it is wound all the way back into the retractor, 
which releases the lock and  allows the webbing to be 
pulled out.
Seat Belt with ELR and Pretensioner
The seat belt with ELR and a pretensioner has a 
pretensioner mechanism whic h operates in linkage with 
the air bag in addition to the described ELR.
The pretensioner is incorporated in retractor assembly 
and controlled by SDM as one of air bag system 
components. It will be activated at the same time as the 
driver and passenger air bag module when an impact at 
the front of vehicle exceeds the specified value.
When servicing seat belt (retractor assembly) with 
pretensioner, be sure to observe all WARNINGS and 
CAUTIONS and “Precautions on Service and Diagnosis 
of Air Bag System in Section 8B”. CAUTION! 
Do not reuse the seat belt pretensioner 
(retractor assembly) that has activated. 
Replace it with a new seat belt assembly and 
buckle together as a set. For checking 
procedure of its activation, refer to “Repair 
and Inspection Required after Accident in 
Section 8B”.
 
Seat Belt Remainder
When driver’s seat belt is unfastened (under the 
following conditions), seat belt reminder light and 
warning buzzer inform that driver’s seat belt is 
unfastened. Seat belt reminder light located in 
combination meter and warning buzzer located inside 
BCM operate as follows:
• Seat belt reminder light comes on when driver’s seat  belt is unfastened while igni tion key switch is at ON 
position.
• If vehicle speed exceeds 15 km/h with seat belt  unfastened, warning buzzer operates for 
approximately 95 seconds and seat belt reminder light 
flashes synchronously with buzzer. When warning 
buzzer stops operating, seat belt reminder light is 
turned on.
• If driver’s seat belt state is changed from “fastened” to  “unfastened” while vehicle speed is above 15 km/h, 
warning buzzer operates for approximately 95 
seconds and seat belt reminder light flashes 
synchronously with buzzer. When warning buzzer 
stops operating, seat belt reminder light is turned on.
Diagnostic Information and Procedures
Repair and Inspection Required after AccidentS7RS0B8104001
After an accident, whether the seat belt pretensioner has  been activated or not, be sure to perform checks and repairs 
described on “Repair and Inspection Required after Accident in Section 8B”.  
Page 1045 of 1496
![SUZUKI SWIFT 2008 2.G Service Owners Manual Downloaded from www.Manualslib.com manuals search engine Air Bag System:  8B-7
Schematic and Routing Diagram
Air Bag System Wiring Circuit DiagramS7RS0B8202001
[A]
[B]“E13”      “E44”, “G04 SUZUKI SWIFT 2008 2.G Service Owners Manual Downloaded from www.Manualslib.com manuals search engine Air Bag System:  8B-7
Schematic and Routing Diagram
Air Bag System Wiring Circuit DiagramS7RS0B8202001
[A]
[B]“E13”      “E44”, “G04](/img/20/7607/w960_7607-1044.png)
Downloaded from www.Manualslib.com manuals search engine Air Bag System:  8B-7
Schematic and Routing Diagram
Air Bag System Wiring Circuit DiagramS7RS0B8202001
[A]
[B]“E13”      “E44”, “G04”      “G35” and "L03"    \
  "L41"
1
2 GRN/RED
GRN GRN/RED
GRN
BLU/RED YEL/RED BLU/RED
YEL/RED
GRN/ORN GRN/YEL
RED
13
PPL/WHT
9 7
8
5
6
10 “L10”
“L11”
“L04”
“G35” “G34”
“G33”
“G28”
“G32”
“L35”
L29-2
L29-27
L29-32 L29-5
L29-6 L29-4
L29-3
L29-8
L29-7
IG
ST
YEL L29-37ADS
WHT/RED
LT GRN/BLK L29-46
L29-47 SD+
SD-
11
WHT/GRN LT GRN
BLK L29-45
L29-44 WL
L29-28
E1 DP-
DP+ P- P+ D- D+
“G10”
“G04”“L29”
18
BLU/ORN
BLU/YEL “L36”
L29-9
L29-10
PP-
PP+
19 17
GRY/RED
GRY
L29-12
L29-11
DS- DS+ “L25”
20
BRN/WHT
BRN
L29-13
L29-14
PS- PS+ “L30”
21
YEL/GRN
YEL/BLU
L29-20
L29-19
DC- DC+ “L18”
22
BLK/YEL
BRN/YEL
L29-21
L29-22
PC- PC+ “L41”
2316
15
14
“L29”
SP+
SP-
“G26”“L32”
“L03”“E44”“E13”
12
ORN
PNK/BLK
GRY/RED
GRY L29-50
L29-51 FD+
FD-
3 4
YEL/BLK
YEL/BLK
GRN RED/BLK
I7RS0A820002-03
[A]: Shorting bar
8. BCM 17. Passenger air bag (inflator) module
[B]: Connector 9. To data link connector (DLC)18. Driver seat belt pretensioner
1. To battery 10. Driver side-sensor (if equipped)19. Passenger seat belt pretensioner
2. Ignition switch 11. Passenger side-sensor (if equipped) 20. Driver side-air bag (inflator) module (if equipped)
3. “AIR BAG” warning light 12. Forward-sensor 21. Passenger side-air bag (inflator) module (if equipped)
4. Light driver 13. Ground for air bag system 22. Driver side curtain-air bag (inflator) module (if equipped)
5. “METER” fuse 14. SDM 23. Passenger side curtain-air bag (inflator) module (if equipped)
6. “A/BAG” fuse 15. Contact coil
7. Junction block assembly 16. Driver air bag (inflator) module  
Page 1046 of 1496

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)
1 2345678910
11
1213141516171819202122232425
272829303132333435363738394041424344454647484950
1
26
51
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 — — — — —  
Page 1048 of 1496

Downloaded from www.Manualslib.com manuals search engine 8B-10 Air Bag System: 
Diagnostic Information and Procedures
Air Bag Diagnostic System CheckS7RS0B8204001
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.
 
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 right operation 
through “AIR BAG” warning right and whether air 
bag DTCs exist.)
2) Refer to the proper diagnost ic 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.)
Air Bag Diagnostic System Check FlowS7RS0B8204002
Flow test description
Step 1: Check that “AIR BAG” warning right lights.
Step 2: Check that “AIR BAG” warning right lights.
Step 3: Check that “AIR BAG” warning right flas hes 6 times after ignition switch is turned ON.
Step 4: Check that history codes are in SDM memory.
Step 5: Check that current code is in SDM memory.
6. “A/BAG” fuse in junction block assembly (including  BCM) 13. Side curtain-air bag (inflator) module (if equipped)
7. Air bag harness in floor harness 14. Air bag harness in instrument panel harness
Step Action YesNo
1 1) Make sure that battery voltage is about 11 V or higher.
2) Note “AIR BAG” warning right  as ignition switch is turned 
ON.
Does “AIR BAG” warning ri ght come ON when ignition 
switch is turned ON? Go to Step 2.
Proceed to ““AIR BAG” 
Warning Right Does Not 
Come ON”.
2 Does “AIR BAG” warning  right come ON steady? Proceed to ““AIR BAG” 
Warning Right Comes 
ON Steady”.Go to Step 3.
3 Does “AIR BAG” warning right  turn OFF, after flashing 6 
times? “AIR BAG” warning right 
circuit is in good 
condition. Go to Step 4.“AIR BAG” warning right 
circuit is in good 
condition. Go to Step 5.  
Page 1051 of 1496

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  
Page 1053 of 1496

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  
Page 1054 of 1496

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  
Page 1060 of 1496

Downloaded from www.Manualslib.com manuals search engine 8B-22 Air Bag System: 
DTC B1021: Front Air Bag Module DeployedS7RS0B8204014
DTC Will Set when
The SDM detects a frontal crash of sufficient force to warrant activation of the air bag system. (SDM outputs a 
deployment command.)
Flow Test Description
Step 1: Check that DTC B1021 has been set although air bag has not been deployed.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.
 
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 DTCs of BCM referring to  “DTC Clearance in Section 10B”
 
DTC B1024 / B1025: Side-Air Bag (Driver / Passenger) DeployedS7RS0B8204015
DTC Will Set when
The SDM detects a sideward crash (driver or passenger side) of  sufficient force to warrant activation of the side-air 
bag system (driver or pa ssenger). (SDM outputs a deployment command.)
Flow Test Description
Step 1: Check that DTC B1024 or B1025 has been set although side-air bag has not been deployed.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.
 
Step Action YesNo
1 1) Turn ignition switch OFF.
Has air bag deployed? Replace components 
and perform inspections 
as directed in “Repair 
and Inspection 
Required after 
Accident”.Go to Step 2.
2 1) Inspect front of vehicle and undercarriage for signs of  impact.
Are there signs of impact? Replace components 
and perform inspections 
as directed in “Repair 
and Inspection 
Required after 
Accident”.Substitute a known-
good SDM and recheck.  
Page 1061 of 1496

Downloaded from www.Manualslib.com manuals search engine Air Bag System:  8B-23
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 DTCs of BCM referring to “DTC Clearance in Section 10B”
 
DTC B1026: Pretensioner ActivatedS7RS0B8204016
DTC Will Set when
The SDM detects a frontal crash of sufficient force to warrant activation of the pr etensioner. (SDM outputs a 
deployment command.)
Flow Test Description
Step 1: Check that DTC B1026 has been set although pretensioner has not been activated.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.
 
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 DTCs of BCM referring to  “DTC Clearance in Section 10B”
 
StepAction YesNo
1 1) Turn ignition switch OFF.
Has air bag deployed? Replace components 
and perform inspections 
as directed in “Repair 
and Inspection 
Required after 
Accident”.Go to Step 2.
2 1) Inspect front of vehicle and undercarriage for signs of  impact.
Are there signs of impact? Replace components 
and perform inspections 
as directed in “Repair 
and Inspection 
Required after 
Accident”.Substitute a known-
good SDM and recheck.
Step
Action YesNo
1 1) Turn ignition switch OFF.
Has pretensioner activated? Replace components 
and perform inspections 
as directed in “Repair 
and Inspection 
Required after 
Accident”.Go to Step 2.
2 1) Inspect front of vehicle and undercarriage for signs of  impact.
Are there signs of impact? Replace components 
and perform inspections 
as directed in “Repair 
and Inspection 
Required after 
Accident”.Substitute a known-
good SDM and recheck.