ignition SUZUKI SWIFT 2005 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 9F-14 Security and Locks:
Keyless Entry Answer Back Function Change-
over Procedure (If Equipped)
S7RS0B9606016
Output of keyless entry answer back function can be
switched over by performing the following procedure.
1) Confirm that all doors are closed, all doors are unlocked, ignition key is out of ignition key cylinder
and interior light switch is in the middle position.
2) Perform Step a) through c) described below within 10 seconds.
a) Insert ignition key in ignition key cylinder.
b) Remove ignition key from ignition key cylinder.
c) Repeat Step a) and b) once.
3) Push “UNLOCK” button on transmitter 3 times within 10 seconds.
4) Interior light flashes once which indicates that answer back function is changed over from A mode
to B mode.
NOTE
When answer back function is changed from
B mode to A mode, hazard warning lights
flashes once.

Keyless Entry Receiver Removal and
Installation
S7RS0B9606017
Removal
1) Disconnect negative cable at battery.
2) Remove grove box referring to Step 6) of “Instrument Panel Removal and Installation in Section 9C”.
3) Disconnect keyless entry receiver coupler.
4) Remove keyless entry receiver (1) from steering support member (2).
Installation
Reverse removal procedure.
Hazard warning light
LOCK LOCK
UNLOCK UNLOCK
Interior lightFlashes
once Flashes
twice
Flashesonce
Turn on
for a
while Turn on
for a
while
Answer back
A mode Answer back
B mode
I5RS0C960001-01
1 2I4RS0B960011-01

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 10-ii Table of Contents
DTC P1615: ID Code Does Not Registered (Vehicle equipped with keyless start system
only) ................................................................10C-9
DTC P1616: Different Registration ID Codes (Vehicle equipped with keyless start system
only) ..............................................................10C-10
DTC P1618: CAN Communication Error (Reception Error for Keyless Start Control
Module) (Vehicle equipped with keyless
start system only) ..........................................10C-11
DTC P1621: Immobilizer Communication Line Error ......................................................10C-12
DTC P1622: EEPROM Reading / Writing Error ..............................................................10C-13
DTC P1623: Unregistered Transponder .........10C-13
DTC P1625: Immobilizer An tenna Error..........10C-14
DTC P1636: Immobilizer Information Registration Failure .......................................10C-14
DTC P1638: Immobilizer Information Mismatched ...................................................10C-15
Inspection of Immobilizer Control Module (ICM) and Its Circuit ....... ...............................10C-16
Repair Instructions ........... ...............................10C-18
Immobilizer Control Mo dule (ICM) Removal
and Installation ..............................................10C-18
Registration of the Ignition Key .......................10C-18
Procedure after ECM Replacement ................10C-18
Special Tools and Equipmen t .........................10C-19
Special Tool ....................................................10C-19
Keyless Start System ....... ......................10E-1
General Description ........................................... 10E-1
Keyless Start System Description ..................... 10E-1
Parts and Functions .......................................... 10E-2
Keyless Engine Start Function .......................... 10E-3
Door Lock Function of Keyless Start System .... 10E-4
Operation Area of Remote Controller................ 10E-5
Alarm Function .................................................. 10E-6
CAN Communication System Description......... 10E-6
Schematic and Routing Diagram ...................... 10E-7 Keyless Start System El ectric Wiring Circuit
Diagram .......................................................... 10E-7
Diagnostic Information and Procedures .......... 10E-8 Precautions in Diagnosing Troubles ................. 10E-8
Self-Diagnosis Function .................................... 10E-8
Keyless Start System Diagn osis Introduction ... 10E-8 Keyless Start System Chec
k ............................. 10E-8
Customer Questionnaire (E xample) .................. 10E-9
Key Indicator Lamp Check .............................. 10E-10
DTC Check...................................................... 10E-10
DTC Table ....................................................... 10E-11
DTC Clearance ............................................... 10E-12
Keyless Start System Symp tom Diagnosis ..... 10E-12
Keyless Start System Operation Inspection .... 10E-13
Door Lock Operation (Keyless Start System) . 10E-14
Inspection of Keyless Start Control Module and Its Circuits .............................................. 10E-14
No DTC Detection After Performing DTC Check ............................................................ 10E-18
Key Indicator Lamp Circuit Check (Key indicator lamp doesn’t light when ignition
knob switch is pushed.) ................................. 10E-20
Keyless Start Control Module Power and Ground Circuit Check .................................... 10E-22
DTC No. 11: Communi cation Error with
Steering Lock Unit ......................................... 10E-23
DTC No. 13 / No. 14: Release Signal Error from Steering Lock Unit / Steering Lock Unit
Malfunction .................................................... 10E-24
DTC No. 21 / No. 22: Internal Error of Keyless Start Control Module (EEPROM reading
error) / (EEPROM writing error) ............ ........ 10E-24
DTC No. 31: Lost Commun ication with BCM .. 10E-25
DTC No. 33: Control Module Communication
Bus Off .......................................................... 10E-27
DTC No. 51 / No. 52 / No. 53: Driver Side / Passenger Side / Rear End Door Request
Switch Failure................................................ 10E-28
Repair Instructions ............ .............................. 10E-30
Antennas and Request Switches Removal and Installation .............................................. 10E-30
Front Door (Driver and Passenger Side), Rear End Door Request Switch Inspection............ 10E-31
Steering Lock Unit Removal and Installation .. 10E-31
Steering Lock Unit Inspection ......................... 10E-31
Front Door Lock Switch In spection ................. 10E-31
Keyless Start Control Module Removal and Installation ..................................................... 10E-32
Remote Controller Inspection.......................... 10E-32
Replacement of Remote Controller Battery .... 10E-32
Registration Procedure for Remote Controller
ID Code ......................................................... 10E-33

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-2
CAN Communication System DescriptionS7RS0BA201002
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description. BCM
communication control data with ea ch control module as follows.
BCM Transmission Data
BCM Reception Data
A/C switch ON signal
Electric load signal
"3" position switch signal
Illumination ON signal
Brake fluid level switch signal
Parking brake switch signal
Seat belt buckle switch signal
Charging system signal
Engine oil pressure switch signal
Diagnostic trouble code (DTC)
Door switch status
Door lock status ECM
TCM
(A/T model) Combination
Meter Keyless Start
Control Module
(if equipped)
Transmit DATA
BCM
ESP
Control Module
(if equipped)
I7RS0BA20002-01
Engine speed signal
Vehicle speed signal Engine coolant temperature signal
A/C refrigerant pressure signal
Fuel consumption signal A/C compressor clutch signal
Transmission range sensor signal
Fuel level signal
Ignition knob switch signal
Door lock/unlock request signal
Buzzer request signal
Answer back request signal
DATA
BCM
Receive
Combination
Meter
TCM
(A/T model) Keyless Start
Control Module (if equipped)
ECM
I7RS0AA20001-01

Downloaded from www.Manualslib.com manuals search engine 10B-3 Body Electrical Control System:
Theft Deterrent LightS7RS0BA201003
The information display or clock (1) of this vehicle includes a theft deterrent light (2) for the theft preventive purpose.
The BCM makes the theft deterrent light flash at certain interval s after the ignition switch is turned off until it is turned
on again. Also, to check DTCs stored in BCM without usin g a SUZUKI scan tool when diagnosing troubles, it is
possible to identify them by flashing patterns of the theft deterrent light.
Security Alarm Description (If Equipped)S7RS0BA201004
Operation
The security alarm system provides a warning of an abnormal condition to those who are around. Its operation is as
follows. While the system is in the stand- by mode (when 20 seconds or more elapsed after the door is locked using a
keyless entry transmitter or door request switch), BCM monitors door lock status, door switch status and battery power
supply voltage. When it detects an abnormal condition (door is unlocked by some way other than using keyless entry
transmitter or door request switch and opened or cut off BCM power supply voltage temporarily), it activates the
warning buzzer (located in BCM), theft deterr ent light, hazard warning relay and horn relay.
The security alarm system has 2 selectable modes.
• A mode: No operation
• B mode: Theft deterrent light blinks, hazard warning lights blink, warning buzzer (located in BCM) sounds and horn
sounds
When B mode is selected and the door is locked using keyl ess entry transmitter or door request switch, the theft
deterrent light (1) flashes at 0.1 second interval for 20 seconds and the se curity alarm system is set to the stand-by
mode (2). Once it is se t to the stand-by mode, the theft deterrent light blinks at 2 second intervals.
When the system is set to stand-by mode and the door is unlocked by some way other than using keyless entry
transmitter or door request switch and opened or cut off BCM power supply voltage temporarily, the alarm devices
operate according to the selected mode as described above.
The alarm stops under either of the following conditions.
• Ignition switch is turned ON
• A certain time has elapsed since the alarm started
For selection of the mode of the security alarm system , refer to “Security Alarm Mode Selection Procedure (If
Equipped)”.
1 2I4RS0AA20031-01
B A1T3
T1
T2 2
C
I5RS0DA20003-01
A: Indicator lamp turned ON
T1: 0.1 seconds
B: Indicator lamp turned OFF T2: 20 seconds
C: When door is locked using keyless entry tr ansmitter or door request switch T3: 2 seconds

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-4
Input / Output Table
Schematic and Routing Diagram
Body Electrical Control System Wiring Circuit DiagramS7RS0BA202001
NOTE
This wiring diagram shows circuits related to only BCM, not the entire circuits of BCM and junction
block. Refer to “Power Supply Diagram in Section 9A” for wiring circuits other than the figure below.

Input Output
Keyless entry transmitter
Door switch status
Door lock status BCMHorn relay
Theft deterrent light
(in information display)
Warning buzzer
(located in BCM)
Hazard warning relay
Door request switch signal
Ignition switch
I5RS0CA20003-01

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 10B-9 Body Electrical Control System:
Diagnostic Information and Procedures
BCM Self-Diagnosis FunctionS7RS0BA204001
• BCM monitors conditions of the system components and its circuit with ignition switch turned to ON position. When
an abnormality in the system oc curs, the area where that abnormality lies is stored in the memory of EEPROM in
BCM.
• DTC can be checked in either one of following ways. – DTC can be checked by SUZUKI scan tool (2) connected to DLC (1).
– DTC can be read from flashing pattern of theft deterrent light (3). Also, DTC is displayed on combination meter
(4) at the same time.
BCM input / output table
4. Oil pressure switch 15. Rear end door window defogger switch 26. Rear wiper relay
5. Outside air temperature sensor (if equipped) 16. A/C switch
27. Rear end door window defogger relay
6. Door lock actuator (incorporated in key cylinder switch) 17. Hazard warning switch
28. Turn signal and hazard warning relay
7. Door switch 18. Rear wiper switch 29. Key reminder switch (included in ignition switch)
8. Interior light 19. Lighting switch
9. Rear end door opener switch 20. Manual door lock switch
3
1
2
4I4RS0BA20004-03
Control
Input Output
Power door lock system • Key cylinder switch
• Manual door lock switch • Each door lock actuator
Keyless entry system • Key reminder switch
• Keyless entry receiver
• Driver side door switch • Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
Keyless start system
(Door lock function) • Keyless start control module
• Each door lock actuator
• Turn signal and hazard warning relay
• Interior light
Rear wiper • Rear wiper INT switch
• Rear wiper LO switch • Rear wiper relay
Combination meter • Tail light switch
• Oil pressure switch
• Parking brake switch
• Driver side seat belt switch
• Brake fluid level switch
• Generator
• Each door switch • Combination meter

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-12
Scan Tool DataS7RS0BA204003
Scan tool DataConditionNormal condition /
reference value
Vehicle Speed At stop with ignition switch turned ON 0 km/h
Outside air Temp Reference value is relative to outside air temperature –40
°C – 70 °C
(–40 °F – 158 ° F)
Battery Voltage At specified idle speed after warming up 10 – 14 V
Coolant Temp At specified idle speed after warming up 80
°C – 100 ° C
(176 °F – 212 ° F)
Engine Speed Engine idling with no load applied after warming up Desired idle speed
± 50 rpm
Fuel Consumption At specified idle speed after warming up 0.0 km/l
Key Reminder Sw Ignition key inserted in
ignition key cylinder Key in
Ignition key pulled out from ignition key cylinder Pulled
Rear Wiper Sw Rear wiper switch at ON position and ignition switch turned ON
ON
Rear wiper switch at INT position and ignition switch turned ON INT
Rear wiper switch at OFF position and ignition switch turned ON OFF
Door key Sw Key cylinder switch of driver side door at lock position
LOCK
Key cylinder switch of driver side door not turned Neutral
Key cylinder switch of driver side door at unlock position Unlock
Door Lock Sw Lock side of manual door lock switch pressed
LOCK
Manual door lock switch not pressed Neutral
Unlock side of manual door lock switch pressed Unlock
Driv Door Sw Driver side door open
Open
Driver side door closed Close
Pass Door Sw Doors other than driver side door open
Open
Doors other than driver side door closed Close
Brake Fluid Level Brake fluid level at MIN level or higher
Normal
Brake fluid level lower than MIN level Low
Parking Brake Sw Parking brake lever pulled
ON
Parking brake lever released OFF
Rear Defogger Sw Rear end door window defogger switch turned ON with engine
running
ON
Rear end door window defogger switch turned OFF with engine
running OFF
Tail Light Sw Lighting switch at HEAD
or CLEARANCE position ON
Lighting switch at OFF position OFF
Driv Seatbelt Sw Driver side seat belt fastened
Fasten
Driver side seat belt unfastened Unfasten
Rear end door opener Rear end door open
ON
Rear end door closed OFF
“3” Position Sw A/T select lever at 2nd or 3rd position with ignition switch turned
ON
ON
A/T select lever at other than 2nd or 3rd position with ignition
switch turned ON OFF
Charge Lamp Engine at stop with ignition switch turned ON
ON
Engine running OFF
Oil pressure switch Engine at stop with ignition switch turned ON
ON
Engine running OFF
A/C Switch A/C and ignition switch turned ON
ON
A/C switch turned OFF OFF

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-14
DTC TableS7RS0BA204004
DTC CheckS7RS0BA204005
Using SUZUKI Scan Tool1) Prepare SUZUKI scan tool.
2) With ignition switch turned OFF, connect it to data link connector (DLC) located on underside of
instrument panel of driver’s side.
Special tool
(A): SUZUKI scan tool 3) Turn ignition switch ON.
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 SUZUKI scan tool and
BCM is not possible, check if SUZUKI scan tool is
communicable by connecting it to BCM in another
vehicle. If communication is possible in this case,
SUZUKI scan tool is in good condition. Then check
data link connector and serial data line (circuit) in the
vehicle with which communica tion was not possible.
5) After completing the check, turn ignition switch off and disconnect SUZUKI scan tool from data link
connector.
DTC
(displayed
on SUZUKI scan tool) DTC (indicated
by theft
deterrent light) DTC (displayed on
odometer in
combination meter) Detected item Detecting condition
NO DTC 0000 0000 — No DTC detected
) B1133 1133 b1133 Battery voltage too high Battery voltage too high
) B1141 1141 b1141 Outside air temperature
(ambient temperature) sensor
circuit openSensor output voltage too high
) B1142 1142 b1142 Outside air temperature
(ambient temperature) sensor
circuit short to groundSensor output voltage too low
) B1150 1150 b1150 Air bag communication circuit
malfunctionAir bag communication circuit
open or short to ground
) B1157 1157 b1157 Air bag deployment signal input Air bag deployment signal
inputted
) B1170 1170 b1170 EEPROM access error Memory error
)
U0155 0155 U0155 Lost communication with
instrument panel cluster (IPC)
control moduleReceiving error of BCM from
combination mete
r for specified
time continuously
) U1073 1073 U1073 Control module communication
bus offTransmitting and receiving error
of BCM for specified time
continuously
) U1100 1100 U1100 Lost communication with ECM Receiving error of BCM from
ECM for specified time
continuously
) U1101 1101 U1101 Lost communication with TCM Receiving error of BCM from
TCM for specified time
continuously
) U1144 1144 U1144 Lost communication with
keyless start control moduleReceiving error of BCM from
keyless start control module for
specified time continuously
(A)
I4RS0BA20005-01