CAN junction connector SUZUKI SWIFT 2007 2.G Service Owner's Manual

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-17
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
Check for short circuit between diag nosis switch circuit and ground.
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.

DTC B1013: SDM faultS7RS0B8204010
DTC Will Set when
An internal SDM fault is detected by SDM.
NOTE
DTC B1013 can never be cleared once it has been set.

DTC Troubleshooting 1) Turn ignition switch OFF.
2) Replace SDM.
3) Repeat “Air Bag Diagnostic System Check”.
DTC B1014: “AIR BAG” Warning Right Circuit FailureS7RS0B8204011
Wiring DiagramStep Action Yes No
1 1) With ignition switch OFF, disconnect SDM connector “L29”.
2) Check “L29-35” terminal of SDM.
Is it shorted to ground terminal or harness? Clean up terminal. Substitute a know-good
SDM and recheck.
12 GRN
9
BLK
L29-2
L29-27
L29-28 IG
E1
WL
8
“L29”
RED
7
3
4 “L04”
“G34”
“G33”
“G28”
“G32”
5 6
YEL/BLK
YEL/BLK
RED/BLK
I7RS0B820004-04
1. From main fuse 4. “A/BAG” fuse
7. Junction block assembly
2. Ignition switch 5. “AIR BAG” warning right in combination meter 8. SDM
3. “METER” fuse 6. Lamp driver 9. Ground for air bag system

Downloaded from www.Manualslib.com manuals search engine 8B-24 Air Bag System:
DTC B1027: Reusable Number ExceededS7RS0B8204017
DTC Will Set when
The SDM has not been replaced though the side-air bag developed several times in the past.
NOTE
DTC B1027 can never be cleared once it has been set.

DTC Trouble shooting1) Turn ignition switch OFF.
2) Replace SDM.
3) Repeat “Air Bag Diagnostic System Check”.
DTC B1031: Driver Air Bag Initiator Circuit Resistance HighS7RS0B8204018
Wiring Diagram
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.

1 2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”
L29-4
D+
L29-3
D-GRN
GRN/RED
GRN
GRN/RED 6
57
“G26”
“L32” “G04”
[A]
I7RS0A820010-07
[A]: Shorting bar 3. “A/BAG” fuse 6. Contact coil assembly
1. From main fuse 4. Junction block assembly 7. Driver air bag (inflator) module
2. Ignition switch 5. SDM 8. Ground for air bag system

Downloaded from www.Manualslib.com manuals search engine 9A-1 Wiring Systems:
Body, Cab and Accessories
Wiring Systems
Precautions
Cautions in Body Electrical System ServicingS7RS0B9100001
When servicing the electric systems, observe the cautions described in “Precautions for Electrical Circuit Service in
Section 00” to protect electrical parts and to prevent a fire.
General Description
AbbreviationsS7RS0B9101001
Refer to the “Abbreviations in Sect ion 0A” for the general abbreviations.
ESP
® is a registered trademark of Daimler Chrysler AG.
Wire / Connector Color SymbolsS7RS0B9101002
Refer to “Wire Color Sy mbols in Section 0A”.
Abbreviation Full term Abbreviation Full term
2WD 2 Wheel Drive Vehicles J/B Junction block
4WD 4 Wheel Drive Vehicles J/C Joint connectorA/B Air Bag KLS Keyless Start System
ACC Accessory L Left
CAN Controller Area Network LED Light Emitting Diode
COMB Combination LHD Left Hand Drive Vehicle DSL Diesel engine LO Low
ELCM EVAP leak check module OCV Oil Control Valve ESP
®Electronic Stability Program P/N Power Normal
FWD Forward R Right HI High RHD Right Hand Drive Vehicle
IF EQPD If equipped ST Starter IG COIL Ignition coil TPMS Tire Pressure Monitoring System ILL Illumination VIM Valiable Intake Manifold
IND Indicator VSV Vacuum Switching Valve INT Intermittent 5 dr 5 door

Downloaded from www.Manualslib.com manuals search engine 9D-3 Wipers / Washers:
Washer Tank and Washer Pump Removal and
Installation
S7RS0B9406002
Removal1) Disconnect negative (–) cable at battery.
2) Remove front bumper referring to “Front Bumper and Rear Bumper Components in Section 9K”.
3) Remove grommet (1) and upper part (2) of washer tank.
4) Remove washer tank attaching bolts (4).
5) Disconnect washer pump lead wire couplers and hoses.
6) Remove washer tank (1).
7) Remove windshield washer pump (2) and rear washer pump (3) from washer tank (1). Installation
Install washer tank and washer pump by reversing
removal procedure, noting the following instructions.
• Connect washer pump connector(s) securely.
• Tighten washer tank bolts to specified torque.
Tightening torque
Washer tank bolt (a): 4 N·m (0.4 kgf-m, 3.0 lb-ft)
Washer Pump InspectionS7RS0B9406003
1) Connect battery positive (+) and negative (–) terminals to pump (+) and (–) terminals respectively.
2) Check windshield and rear washer pumps for
operation.
If pump does not operate, replace washer pump.
1. Windshield wiper blade 8. Washer pump for rear washer[A]: Junction block assembly viewed
from relay side
2. Windshield wiper arm 9. Washer tank: 16 N⋅m (1.6 kgf-m, 11.5 lb-ft)
3. Windshield wiper motor 10. Washer hose : 8 N⋅m (0.8 kgf-m, 6.0 lb-ft)
4. Windshield wiper link 11. Washer nozzle : 5 N⋅m (0.5 kgf-m, 4.0 lb-ft)
5. Rear wiper arm with blade assembly 12. Wiper switch : 4 N⋅m (0.4 kgf-m, 3.0 lb-ft)
6. Rear wiper motor 13. Rear wiper relay
7. Washer pump for windshield washer 14. Junction block assembly
: BCM cannot be removed from junction block.
1
2
I4RS0A940002-01
2 1 4
3
I4RS0A940003-01
(a)
I4RS0A940004-01
(–)
(+)
I4RS0A940005-01

Downloaded from www.Manualslib.com manuals search engine Table of Contents 10- i
10
Section 10
CONTENTS
Control Systems
Precautions ............................................... 10-1
Precautions........................................................... 10-1
Precautions for Control Systems......................... 10-1
Body Electrical Contro l System ........... 10B-1
Precautions......................................................... 10B-1
Precautions in Diagnosing Trouble ................... 10B-1
General Description ........................................... 10B-1 BCM General Description ................................. 10B-1
CAN Communication System Description......... 10B-2
Theft Deterrent Light ......................................... 10B-3
Security Alarm Description (If Equipped) .......... 10B-3
Schematic and Routing Diagram ...................... 10B-4 Body Electrical Control System Wiring Circuit Diagram .......................................................... 10B-4
Connector Layout Diagram of BCM and Junction Block Assembly ................................ 10B-7
Component Locatio n ......................................... 10B-8
BCM and Related System Component Location .......................................................... 10B-8
Diagnostic Information an d Procedures .......... 10B-9
BCM Self-Diagnosis Function ........................... 10B-9
Body Electrical Control System Check............ 10B-10
Scan Tool Data ............................................... 10B-12
DTC Table ....................................................... 10B-14
DTC Check ..................................................... 10B-14
DTC Clearance ............................................... 10B-15
BCM Power Circuit and Ground Circuit Check 10B-16
DTC B1133 (DTC No. 1133): Battery Voltage Too High ....................................................... 10B-17
DTC B1141 / DTC B1142 (No. 1141 / No. 1142): Outside Air Temperature (Ambient
Temp.) Sensor Circuit Ma lfunction ................ 10B-18
DTC B1150 (No. 1150): Air Bag Communication Circuit Malfunction .............. 10B-19
DTC B1157 (No. 1157): Air Bag Deployment Signal Input ................................................... 10B-20
DTC B1170 (No. 1170 ): EEPROM Access
Error .............................................................. 10B-21
DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control
Module .......................................................... 10B-21
DTC U1073 (No. 1073): Control Module Communication Bus Off ................................ 10B-24 DTC U1100 (No. 1100): Lost Communication
with ECM ....................................................... 10B-25
DTC U1101 (No. 1101): Lost Communication with TCM ....................................................... 10B-27
DTC U1144 (No. 1144): Lost Communication with Keyless Start Control Module ................ 10B-29
Inspection of BCM and its Circuits .................. 10B-31
Repair Instructions ........... ...............................10B-39
BCM (Included in Junction Block Assembly) Removal and Installation ............................... 10B-39
Outside Air Temperature Sensor Removal and Installation .............................................. 10B-39
Outside Air Temperature Sensor Inspection ... 10B-39
Security Alarm Mode Selection Procedure (If Equipped) ...................................................... 10B-39
Special Tools and Equipmen t .........................10B-40
Special Tool .................................................... 10B-40
Immobilizer Control Syst em ................. 10C-1
Precautions.........................................................10C-1
Precautions in Diagnosing Troubles .................10C-1
Precaution in Replacing ECM ...........................10C-1
Precautions in Handli ng Immobilizer Control
System ............................................................10C-1
General Description ...........................................10C-2 Immobilizer Control System Introduction ..........10C-2
Immobilizer Control System Components Location...........................................................10C-3
On-Board Diagnostic System Description (Self-diagnosis Function) ................................10C-3
Schematic and Routing Diag ram ......................10C-4
Immobilizer Control System Wiring Circuit Diagram...........................................................10C-4
Diagnostic Information an d Procedures ..........10C-5
Immobilizer Control System Check ...................10C-5
Diagnostic Trouble Code (DTC) Check.............10C-5
Diagnostic Trouble Code (DTC) Clearance ......10C-6
Diagnostic Trouble Code (DTC) Table ..............10C-6
Scan Tool Data .................................................10C-7
Immobilizer Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop ..10C-7
Immobilizer Indicator Lamp Remains ON after Engine Starts...................................................10C-8
DTC P1614: Transponder Re sponse Error .......10C-9

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-6
[A]: Vehicle not equipped with diagnosis connector 19. Door key cylinder switch (included in door lock actuator)40. SDM
[B]: Vehicle equipped with diagnosis conn ector 20. Manual door lock switch 41. Rear end door window defogger relay
[C]: ESP ® model 21. Rear end door window defogger switch 42. Rear end door window defogger
1. BCM (included in junction block assembly) 22. Rear end door opener switch 43. Rear end door window defogger indicator lamp
2. Rear washer motor 23. “3” position switch (A/T model)44. Horn relay
3. Rear wiper motor 24. A/C switch45. Horn switch
4. Rear wiper relay 25. Rear end door opener relay46. Horn
5. Rear wiper and washer switch 26. Rear end door opener actuator47. Lighting switch
6. Outside air temperature sensor 27. TCM (A/T model)48. Ignition switch
7. Key reminder switch 28. ECM49. Battery
8. Theft deterrent light 29. Combination meter50. To turn signal light
9. Oil pressure switch 30. Data link connector (DLC)51. Body ground
10. Generator 31. To ECM, ABS/ESP®, P/S control module 52. Engine ground
11. Information display (if equipped) 32. To SDM53. Keyless start control module (if equipped)
12. Keyless entry receiver (if equipped) 33. Door lock actuator relay 54. Right side door mirror heater (if equipped)
13. Driver side door switch 34. Driver side door lock actuator55. Left side door mirror heater (if equipped)
14. Other than driver side door switch 35. Passenger side door lock actuator56. ABS/ESP® control module
15. Rear end door switch 36. Rear door lock actuator57. To HVAC control module
16. Driver side seat belt switch 37. Turn signal and hazard warning relay 58. CAN junction connector
17. Brake fluid level switch 38. Hazard warning switch59. Steering angle sensor
18. Parking brake switch 39. Interior light

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-22
ESP® model
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure 1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
[F] E85
161
15
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3233
34
35
36
37
38
39
40
41
42
43
44
45
46
47
[D] 12345678910
11
141516
36 34 33 32 31 30 29 24 23
37
181920
G49
[A]
E23
C37
34
1819
567
10
11
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 331
1213
238
34
1819
567
10
11
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 331
12
13
238
[C]G28
1234567
8
910
11
1213141516
1718
19
20
212223242526272829303132
[E] G54
109 321
[B]
G37E46
1234567 1234567
8910
11
8910
11
121314 121314
1516171819202122
4
6 1
2
3
REDWHT
REDWHT
REDWHT
REDWHT
E23-3E23-18
E85-42E85-46
E85-13E85-44
G37-4G37-2
REDWHT
REDWHTG49-19G49-18
5
7
WHTG54-9REDG54-10
G28-8G28-10
G28-7REDG28-9WHT
RED/BLKWHT/BLK
REDWHTE46-1E46-2
G37-1G37-3
+BB8
I7RS0BA20005-01
[A]: ECM connector (viewed from harness side)
1. ECM
[B]: BCM connector (viewed from harness side) 2. ESP® control module
[C]: Combination meter connector (viewed from harness side) 3. BCM
[D]: Keyless start control module connector (viewed from harness side) 4. Steering angle sensor
[E]: Steering angle sensor connector (viewed from harness side) 5. Combination meter
[F]: ESP ® control module connector (viewed from terminal side) 6. Keyless start control module
7. CAN junction connector
8. Data link connector (DLC)
DTC detecting condition Trouble area
BCM can not receive CAN data from combination meter
for longer than specif ied time continuously. • CAN communication circuit
•BCM
• Combination meter

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-24
DTC U1073 (No. 1073): Control Module Communication Bus OffS7RS0BA204014
Wiring Diagram
Refer to “DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control Module”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure 1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting DTC detecting condition Trouble area
Transmission error that is inconsistent between transmission data and
transmission monitor (CAN bus monitor) data is detected more than 7
times continuously.
(1 driving detection logic) • CAN communication circuit
• Combination meter
• BCM (included in junction block
assembly)
• TCM (A/T model)
• ABS/ESP ® control module
• Keyless start control module (if equipped)
•ECM
• Steering angle sensor (if equipped)
Step Action YesNo
1 Control module connector check
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck DTC.
Is DTC U1073 detected? Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
2 CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules
communicating by means of CAN.
3) Check CAN communication circuit between control modules for open, short and high resistance.
Is each CAN communication circuit in good condition? Go to Step 3.
Repair circuit.

Downloaded from www.Manualslib.com manuals search engine 10B-25 Body Electrical Control System:
DTC U1100 (No. 1100): Lost Communication with ECMS7RS0BA204015
Wiring Diagram
Refer to “DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control Module”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure 1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC. 3
DTC check of BCM
1) Turn ignition switch to OFF position.
2) Connect connectors of disconnected control modules
communicating by means of CAN.
3) Disconnect connector from any one of control modules other than BCM.
4) Recheck BCM for DTC.
Is DTC U1073 detected? Disconnect connectors
of control modules other
than the one whose
connector is
disconnected in Step 3)
one by one and check
that DTC U1073 is
detected by BCM each
time connector is
disconnected. When
DTC U1073 is not
detected by BCM while
checking in this way, go
to description under
“NO” below. If DTC
U1073 is detected by
BCM even when
connectors of all control
modules that use CAN
communication with
BCM are disconnected,
substitute a known-
good BCM and recheck.Check power and
ground circuit of control
module disconnect in
Step 3). If circuit is OK,
substitute a known-
good control module
disconnected in Step 3)
and recheck.
Step Action Yes No
DTC detecting condition
Trouble area
BCM can not receive CAN data from ECM for longer than specified
time continuously. • CAN communication circuit
• BCM (included in junction block assembly)
•ECM

Downloaded from www.Manualslib.com manuals search engine 10B-27 Body Electrical Control System:
DTC U1101 (No. 1101): Lost Communication with TCMS7RS0BA204016
Wiring Diagram
Refer to “DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control Module”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure 1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting 9
DTC check of BCM
1) Connect connectors of disconnected control modules
communicating by means of CAN.
2) Disconnect connector of any one of control module other than BCM.
3) Recheck BCM for DTC.
Is DTC U1100 (No.1100) detected? Disconnect connectors
of control modules other
than the one whose
connector is
disconnected in Step 2)
one by one and check
that DTC U1100 is
detected by BCM each
time connector is
disconnected. When
DTC U1100 is not
detected by BCM while
checking in this way, go
to description under
“NO” below. If DTC
U1100 is detected by
BCM even when
connectors of all control
modules that use CAN
communication with
BCM are disconnected,
substitute a known-
good BCM and recheck.Check power and
ground circuit of control
module disconnected in
Step 2). If circuit is OK,
substitute a known-
good control module
disconnected in Step 2)
and recheck.
Step Action Yes No
DTC detecting condition
Trouble area
BCM can not receive CAN data from TCM for longer than specified
time continuously. • CAN communication circuit
• BCM (included in junction block assembly)
• TCM (A/T model)
Step
Action YesNo
1 DTC check of BCM
Is DTC U1101 (No. 1101) and DTC U1073 (No. 1073)
detected together? Go to “DTC U1073 (No.
1073): Control Module
Communication Bus
Off”.Go to Step 2.
2 DTC check of TCM
1) Check TCM for DTC.
Is DTC P1774 detected? Go to “DTC P1774:
CAN Communication
Bus Off in Section 5A”.
Go to Step 3.
3 DTC check of ECM
1) Check ECM for DTC.
Is DTC P1674 detected? Go to “DTC P1674:
CAN Communication
(Bus Off Error) in
Section 1A”.Go to Step 4.