Bcm modul SUZUKI SWIFT 2008 2.G Service Manual Online

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.

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-16
Instrument PanelS7RS0B910A003
E: Main harness and power steering wire (RHD)
E: Main harness
E: Power steering wire
J/B
E54
E53
E49
E51E52E84
E48
E50
Power steering wire
E47E74E42E61
E43
E45
(TO L02)
E44
(TO L03)E46
E40 E39
E41 E37
(TO G35)
E38
(TO G36)
8
E
I7RS0B910904-01
No./Color Connective position No./ColorConnective position
E37/GRY Instrument panel harness (To G35) E45/N Floor harness (To L02)
E38/N Instrument panel harness (To G36) E46/BLU BCM
E39/BRN J/B E47/N Brake light switch
E40/N J/B E48/BLU Power steering wire (To E50)
E41/N J/B E49/BLK P/S control module
E42/N J/C E61/N
(M16A
engine) APP (Acceleration pedal position) sensor
E43/N J/C E74/N (IF
EQPD) CPP (Clutch pedal position) switch
E44/YEL Floor harness (To L03) E84/BLK (IF
EQPD) YAW/G sensor
No./Color Connective position No./ColorConnective position
E50/BLU Main harness (To E48) E53/BLK P/S torque sensor
E51/BLU P/S control module E54/GRY P/S motor
E52/BLK P/S control module

Downloaded from www.Manualslib.com manuals search engine 9A-17 Wiring Systems:
E: Main harness and power steering wire (LHD)
E: Main harness
E: Power steering wire
J/B
E54E53
E49E51E52 E48
E50
E
Power steering wire
E47
E43
E42
E45
(TO L02) E44
(TO L03)E46
E40
E39 E41
E37
(TO G35)
E38
(TO G36)
8
I7RS0B910905-01
No./Color Connective position No./ColorConnective position
E37/GRY Instrument panel harness (T o G35)E44/YEL Floor harness (To L03)
E38/N Instrument panel harness (To G36) E45/N Floor harness (To L02)
E39/BRN J/B E46/BLU BCM
E40/N J/B E47/N Brake light switch
E41/N J/B E48/BLU Power steering wire (To E50)
E42/N J/C E49/BLK P/S control module
E43/N J/C
No./Color Connective position No./ColorConnective position
E50/BLU Main harness (To E48) E53/BLK P/S torque sensor
E51/BLU P/S control module E54/GRY P/S motor
E52/BLK P/S control module

Downloaded from www.Manualslib.com manuals search engine 9A-35 Wiring Systems:
Individual Circuit Fuse Box No. 2 (In J/B)S7RS0B910D006
22
28
23
29
37
24
30
38
25
31
39
26
32
40
27
33
41
34
42
35
43
36
44
45USE THE DESINGNATED FUSES AND RELAYS ONLY.
*1: DEICER / RR FOG *2: DIESEL / HID L *3: MTA / HID R
I5RS0B910919-02
No. Fuse Description on the coverProtected circuit
BLANK BLANK BLANK
15 A IG COILCurrent sensor
ECM
Fuel pump relay
Generator
Heated oxygen relay #1
Heated oxygen relay #2
ICM
IG coil #1
IG coil #2
10 A BACKAuto A/C unit
Back-up light switch (M/T)
Air intake control actuator
HVAC control switch
Headlight leveling switch
Headlight leveling actuator (R)
Headlight leveling actuator (L)
KLS ECM
Transaxle range sensor (A/T)
10 A METERBCM
COMB meter
Flasher relay
15 A ACC 1BCM
Power mirror
15 A ACC 2ACC socket or Cigar lighter
Audio
Multi information display
KLS ECM
15 A WIPERCOMB switch
DRL controller
Rear washer motor
Rear wiper motor
Rear wiper relay
Windshield washer motor
Windshield wiper motor
10 A IG1 SIGA/T relay (A/T)
Power steering control module

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-36
15 AA/BAG A/B SDM
10 A ABSABS control module
ESP
® control module
Steering angle sensor
10 A TAIL COMB switch
BLANK BLANK BLANK 20 A D/L BCM
10 A DIESEL/HID L BLANK
10 A ST SIG Starting motor relay
15 A SEAT HTR Seat heater switch (Driver side)
Seat heater switch (Passenger side)
10 A IG2 SIG Blower motor relay
15 A DEICER/RR FOG COMB switch
15 A RADIO Audio
Auto A/C unit
BCM
COMB meter
DLC
ECM
Interior light
Luggage compartment light
Main switch (Key switch)
Multi information display
KLS ECM
Steering angle sensor
TCM
25 A RR DEF Rear defogger relay
15 A HAZ-HORN Horn relay
Flasher relay
10 A MTA/HID R BLANK
20 A P/WT BLANK
30 A P/W Front power window main switch
Front power window sub switch
Rear power window sub switch (R)
Rear power window sub switch (L)
No. Fuse Description on the cover Protected circuit

Downloaded from www.Manualslib.com manuals search engine 9C-1 Instrumentation / Driver Info. / Horn:
Body, Cab and Accessories
Instrumentation / Driver Info. / Horn
Precautions
Precautions in Diagnosing Troubles for Combination MeterS7RS0B9300001
Combination meter uses signals (information) from each control module by CAN communication to control
speedometer, tachometer, engine coolant temp meter, warning light and indicator light (other than air bag warning
light, high beam indicator light, EPS warn ing light and turn signal indicator light). Therefore, check that no DTC is
detected in each module before performing combination me ter symptom diagnosis. If any DTC is detected, correct
trouble indicated by that DTC troubleshooting first.
General Description
CAN Communication System DescriptionS7RS0B9301001
Refer to “CAN Communication System Description in Section 1A” for Can communication system description.
Combination meter communicates control data with each control module as follows.
Combination Meter Transmission Data
BCM
Combination Meter DATA
TransmitFuel level signal
I7RS0A930001-01

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-2
Combination Meter Reception Data
NOTE
*:ESP® model

ECM BCM
Keyless
Start
Control Module
(if equipped)
Combination Meter
TCM
(A/T model)
Engine speed signal
Immobilizer indicator light control signal
Vehicle speed signal
Engine coolant temperature signal
MIL control signal
Transmission range sensor signal
Transmission warning light signal
Diagnostic trouble code (DTC)
Brake fluid level switch signal
(brake warning light control signal)
Driver side seat belt buckle switch signal
(seat belt reminder light control signal)
Charging system warning light signal
(charge warning light control signal)
Engine oil pressure switch signal
(oil pressure warning light control signal)
Parking brake switch signal
(brake warning light control signal)
Illumination ON signal
Door switch signal
(open door warning light control signal)
ABS indication signal
EBD indication signal
(brake warning light control signal)
Key indicator light control signal ABS/ESP®
ControlModule
DATA
Receive
*
ESP® status signal
I7RS0B930001-01

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-4
Schematic and Routing Diagram
Combination Meter Circuit DiagramS7RS0B9302001
16
15
14
13
G28-5
5
6
3
G28-26
7
G28-2219
G28-2520
G28-17
12
10 11
21
9
17
G28-304G28-29
18
G28-16
G28-9
G28-10G28-8 G28-7
1
2 8
G38-31
G38-32
I7RS0B930002-01
1. Keyless start control module
8. CAN driver 15. Fuel meter
2. BCM 9. Interface circuit 16. ECT meter
3. SDM 10. Power supply 17. Stepper motor and LED output driver
4. Fuel level sensor 11. CPU 18. A/T shift position indicator (“P”, “R”, “N”, “D”, “3”, “2”, and “L”)
5. RADIO fuse 12. ODO-TRIP 19. Combination switch (high beam)
6. METER fuse 13. Tachometer 20. P/S control module
7. Combination switch 14. Speedometer 21. Combination meter

Downloaded from www.Manualslib.com manuals search engine Glass / Windows / Mirrors: 9E-14
Rear End Door Window Defogger Switch
Inspection
S7RS0B9506012
1) Check rear end door window defogger switch for operation as follows.
a) Rear end door window defogger switch is built in HVAC control module (unit).
Remove HVAC control module (unit) referring to
“HVAC Control Unit Removal and Installation in
Section 7A” or “HVAC Control Module Removal
and Installation in Section 7B”.
b) Check that there is continuity between terminal (1) and terminal (2) of HVAC control module
(unit) when rear end door window defogger
switch is at ON position. (Rear end door window
defogger switch is kept in push.)
c) Check that there is no continuity between terminal (1) and terminal (2) of HVAC control
module (unit) when rear end door window
defogger switch is at OFF position.
If check result does not meet the above conditions,
replace HVAC control module (unit).
Rear End Door Window Defogger Relay
Inspection
S7RS0B9506013
1) Disconnect negative (–) cable from battery.
2) Remove junction block assembly for inspection of rear end door window defogger relay.
For removal, refer to “BCM (Included in Junction
Block Assembly) Removal a nd Installation in Section
10B”.
3) Remove rear end door window defogger relay (1) from junction block assembly (2).
4) Check that there is no continuity between terminal “c” and “d”. If there is continuity, replace relay.
5) Check that there is continuity between terminals “c” and “d” when a 12 V battery is connected to
terminals “a” and “b”.
If malfunction is found, replace it with a new one.
[A]: Manual A/C model [B]: Automatic A/C model
12
7812910
65 431516 14 13 12 11789101920121112
65 431718 16 15 14 13
1
2
[A]
[B]
I5RS0C950001-01
3. Brake (stop) lamp switch
1
3
2
2
I4RS0B950009-01
ba
c
dc
a
d
bI4RS0A950028-01

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