acc SUZUKI SWIFT 2005 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-34
Junction block connector “E40”
Junction block connector “E41”
Junction block connector “G32”
Junction block connector “G33”
Junction block connector “G34”
Junction block connector “K01”
Junction block connector “L04”
Junction block connector “L05”Terminal Circuit Normal voltage Condition
E40-2 Backup power source 10 – 14 V Igni tion switch is at all positions
TerminalCircuitNormal voltage Condition
E41-3 Horn 10 – 14 V Horn switch is at ON position
0 V Horn switch is at OFF position
Terminal CircuitNormal voltage Condition
G32-2 Power source (IG) 10 – 14 V Ignition switch is at ON position
0 V Ignition switch is at any position other than ON position
G32-5 Power source (ACC) 10 – 14 V Ignition switch is at ACC or ON position
0 V Ignition switch is at any position other than ACC or ON
position
Terminal
CircuitNormal voltage Condition
G33-3 Ground for BCM 0 V Ignition switch is at all positions
G33-7 Rear end door window
defogger indicator light 10 – 14 V
Engine is running and rear end door window defogger
indicator light is lit up
0 V Engine is running and rear end door window defogger
indicator light is not lit up
Terminal
CircuitNormal voltage Condition
G34-3 Horn switch 10 – 14 V Horn switch is not pushed
0 V Horn switch is pushed
G34-7 Lighting switch 10 – 14 VEngine is running (equipped with DRL) or lighting
switch is at any position other than OFF position
0 V Lighting switch is at OFF position
G34-9 Ground for BCM 0 V Ignition switch is at all positions
G34-11 Hazard warning switch 0 VHazard warning switch is at
ON position or lock or
unlock button of key less entry transmitter (answer
back control) is pushed
10 – 14 V Hazard warning switch is at OFF position
Terminal CircuitNormal voltage Condition
K01-5 Interior light 10 – 14 V
Interior light switch is at
DOOR position and interior
light is not lit up
0 V Interior light switch is at
DOOR position and interior
light is lit up
Terminal CircuitNormal voltage Condition
L04-2 Air bag communication line *0 – 1 V
↑↓
4 – 6 V Refer to “Reference
waveform No. 13: ”
L04-3 Serial communication line of
data link connector for SDM 8 – 12 V Ignition switch is at ON position
Terminal
CircuitNormal voltage Condition
L05-4 Ground for BCM 0 V Ignition switch is at all positions
L05-5 Power supply for rear wiper
motor 10 – 14 V Ignition switch is at ON position

Downloaded from www.Manualslib.com manuals search engine 10C-5 Immobilizer Control System:
Diagnostic Information and Procedures
Immobilizer Control System CheckS7RS0BA304001
Diagnostic Trouble Code (DTC) CheckS7RS0BA304002
NOTE
To know how to use SUZUKI scan tool in
detail, refer to its operator’s manual.

Using Scan Tool
1) Turn the ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (DLC) (1) located under instrument panel at driver’s
seat side.
Special tool
(A): SUZUKI scan tool 3) Turn the ignition switch to ON position.
4) Check if any DTC is stored
in ECM according to the
instructions displayed on SUZUKI scan tool.
5) After completing the check, turn ignition switch to
OFF position, and then di sconnect SUZUKI scan
tool from DLC.
Using Diagnosis Connector (If equipped)
Refer to “Without Using Scan Tool (Vehicle Equipped
with Diagnosis Connector)” under “DTC Check in
Section 1A”.
Step Action Yes No
1 Immobilizer indicator lamp check
Turn ignition switch to ON position using ignition key.
Does it immobilizer in dicator lamp come on? Go to Step 2.
Check if DTC P1636
and/or P1638 are
detected by ECM
referring to “Diagnostic
Trouble Code (DTC)
Check”. If detected, go
to applicable DTC diag.
flow. If not detected, go
to “Immobilizer Indicator
Lamp Does Not Come
ON with Ignition Switch
ON and Engine Stop”.
2 Immobilizer indicator lamp check
Does it immobilizer indicato r lamp flashes on and off
continuously in Step 1? Check ECM for DTC
referring to “Diagnostic
Trouble Code (DTC)
Check”. Then, Go to
applicable DTC diag.
flow.Go to Step 3.
3 Engine start check
Start engine using ignition key.
Does engine start? Go to Step 4.
Perform “Engine and
Emission Control
System Check in
Section 1A”.
4 Immobilizer indicator lamp check
Check Immobilizer indicator la mp remains ON after engine
start.
Does immobilizer indicator la mp remains ON after engine
start? Go to “Immobilizer
Indicator Lamp
Remains ON after
Engine Starts”.
Immobilizer system is
good condition. Then go
to “Keyless Start
System Check in
Section 10E”. (Vehicle
equipped with keyless
start system only)
(A)1
I4RS0BA30003-03

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-6
Diagnostic Trouble Code (DTC) ClearanceS7RS0BA304003
NOTE
To know how to use SUZUKI scan tool in
detail, refer to its operator’s manual.

Using Scan Tool
1) Turn the ignition switch to OFF position,
2) Connect SUZUKI scan tool to data link connector (DLC) (1) located under instrument panel at driver’s
seat side.
Special tool
(A): SUZUKI scan tool 3) Turn the ignition switch to ON position.
4) Clear DTC(s) according to the instructions displayed
on SUZUKI scan tool.
5) After completing the clearance, turn the ignition switch to OFF position, and then disconnect SUZUKI
scan tool from DLC.
Using Diagnosis Connector (If Equipped)
Refer to “Without Using Scan Tool” under “DTC
Clearance in Section 1A”.
Diagnostic Trouble Code (DTC) TableS7RS0BA304004
ECM
NOTE
If any DTC other than the above DTCs is detected, refer to “DTC Table in Section 1A”.

(A)1
I4RS0BA30003-03
DTC No. Detecting Item Detecting ConditionImmobilizer
Indicator Lamp
P1614 Transponder Response Error Transponder code in the transponder built in
the ignition key cannot be read through ICM.Flash
P1615 ID Code Does Not Re
gistered (Vehicle
equipped with Keyless Start System only) • While registering the transponder code in
the transponder built in the ignition key in
ECM, the keyless start control module
sent a signal to ECM indicating that the ID
code could not be registered.
• The ID code could not be registered in the keyless start control module or ECM. Flash
P1616 Different Registration ID Codes (Vehicle
equipped with Keyless Start System only) ECM detects different ID codes registered in
ECM and keyless start system.
Flash
P1618 CAN Communication Error (Reception Error
for Keyless Start Control Module) (Vehicle
equipped with Keyless Start System only) Reception error communication data for
keyless start control module is detected for
longer than specified time continuously.
Flash
P1621 Immobilizer Commu nication Line ErrorCommunication error between ICM and
ECM is detected by ECM. Flash
P1622 EEPROM Reading / Writing Error EEPROM in ECM is corrupted.Flash
P1623 Unregistered Transponder Transponder code in the transponder built in
the ignition key is invalid.Flash
P1625 Immobilizer Antenna Error ICM is faulty.Flash
P1636 Immobilizer Information Registration Failure Communication error between ECM and
BCM is detected by ECM.No operation
P1638 Immobilizer Info rmation Mismatched • Communication error between ECM and
BCM is detected by ECM
• Wrong ECM or BCM is used. No operation

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-1
Control Systems
Keyless Start System
General Description
Keyless Start System DescriptionS7RS0BA501001
Keyless start system consisting of the parts shown below has three functions as described below.
• Keyless engine start function:With the remote controller which has been registered in the keyless start control module carried with oneself, the
engine can be started without using the ignition key.
• Door lock function: Pushing the request switch incorporated in the outside handl e of the driver side door, passenger side door or rear
end door while carrying the remote controller which has been registered in the keyless start control module, doors
can be locked or unlocked.
• Keyless entry system function: It is possible to lock or unlock doors by push ing the lock or unlock button of remote controller.
The keyless start control module can accept regi stration of up to four remote controllers.
5
12
13
9
14
1
2
6
3
748
3
11
10
I4RS0BA50001-02
1. Keyless start control module 5. Luggage room antenna 9. Steering lock unit13. Key indicator lamp
2. Remote controller 6. Driver side door antenna10. Lock button14. ECM
3. Request switch 7. Passenger side door antenna11. Unlock button
4. Center antenna 8. Rear end door antenna12. BCM

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-3
Keyless Engine Start FunctionS7RS0BA501003
When the ignition knob switch (2) installed to the steering lock unit (1) is pushed, the keyless start control module (3)
activates the center antenna (4) to send out the request signa l in the vehicle compartment. When the remote controller
(5) receives the request signal from th e center antenna, it transmits the ID code to the keyless start control module.
The keyless start control module compares the ID code sent by the remote controller with the ID code registered in the
keyless start control module. When these ID codes match, the keyless start control module makes the key indicator
lamp (7) in the combination meter (6) light in blue and unlocks the steering lock unit to enable the ignition knob switch
to turn. When the ignition knob switch is turned to ON posit ion in this state, ID codes of ECM and keyless start control
module are compared through CA N communication (immobilizer function). Wh en they match, turning the ignition knob
switch to start position will start the engine.
NOTE
When ignition knob switch is at ACC or ON position (engine not running) and any door has been kept
open for a certain time, it may happen that engine fails to start. In such a case, turn ignition knob
switch to OFF position once and then try to start engine again.

When the ID code from the remote controller and the ID code registered in the keyless start control module do not
match or when the remote controller is outside the operation area of the remote controller and the ignition knob switch
is pushed, the steering lock unit cannot be unlocked and so the ignition knob switch cannot be turned. Then, the
keyless start control module makes the key indicator lamp in t he combination meter light in red to warn the driver that
it is not possible to turn the ignition knob switch. Also, when the ID code of ECM and that of the keyless start control
module do not match, the engine cannot be started even if the ignition knob switch is turned to the start position. Then
ECM makes the immobilizer light in the combination mete r flash to warn the driver that it is not possible to start the
engine.
8 3
1
6 ii)
iii) iii)
iii)
iii)
iv)
i)
v)
vi)
vii)
7 6
2
[A]: i) ~ vii)
54
I5RS0CA50001-01
[A]: Signal flow
8. ECM

Downloaded from www.Manualslib.com manuals search engine 10E-6 Keyless Start System:
Alarm FunctionS7RS0BA501006
Under conditions as described in the table below, the keyless start control module makes the key indicator lamp flash
in red and the buzzer sound to call the driver’s attention.
CAN Communication System DescriptionS7RS0BA501007
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description.
Keyless start control module communicates control data wit h each control as follows.
Keyless Start Control Module Transmission Data
Keyless Start Control Module Reception Data Condition Buzzer operation Key indicator lamp operation
Ignition knob switch has stopped between ACC and OFF
positions while driver side door is opened (ignition knob
switch un-returned alarm) Intermittent —
Ignition switch has stopped between ACC and OFF
positions while driver side door is closed (ignition knob
switch un-returned alarm) 2 times Flashing in red
Remote controller is carried out of vehicle and doors are
closed while ignition switch is at ON position (remote
controller carried-out alarm) 5 times Flashing in red
Remote controller is carried out of vehicle through a window
without opening door while ignition switch is at ON position
(engine is running) and vehicle has been driven at 10km/h
(6 MPH) or more speed without remote controller in vehicle
compartment (the first time 10 km/h (6 MPH) speed is
exceeded only) (Remote cont roller carried-out alarm) 5 times Flashing in red
BCM
ECM Combination
Meter
ID code of keyless start control module
ECM-keyless start control module code
Ignition knob switch signal
Door lock/unlock request signal
Buzzer request signal
Answer back request signal
Key indicator light control signal
DATA
Transmit
Keyless Start
Control Module
I6JB0AA50005-01
Vehicle speed signal
ECM-keyless start control module code
Door switch status
Door lock status
Charging system signal
Engine oil pressure switch signal ECM BCM
DATA
ReceiveKeyless Start
Control Module
I5RW0CA50001-02

Downloaded from www.Manualslib.com manuals search engine 10E-8 Keyless Start System:
Diagnostic Information and Procedures
Precautions in Diagnosing TroublesS7RS0BA504001
• The keyless start system executes data transmission/reception by means of th e radio wave. Therefore,
proper operation may not be obtained if use of the
door lock function and engine start function of the
keyless start system is attempted near the place
where strong radio wave is emitted (TV and radio
broadcasting stations, etc.).
• Diagnostic information stored in keyless start control
module memory can be checked only by key indicator
lamp.
• Be sure to use the trouble diagnosis procedure as described in “Keyless Start System Check”. Failure to
follow it may result in incorrect diagnosis. (Some other
DTC may be stored by mistake in the memory of
keyless start control module during inspection.)
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” befo re inspection and observe
what is written there.
• Communication of ECM, BCM, TCM (A/T model), ABS control module, keyless start control module and
combination meter is estab lished by CAN (Controller
Area Network). (For detail of CAN communication for
keyless start control module, refer to “CAN
Communication System Description”). Therefore,
handle CAN communication line with care referring to
“Precaution for CAN Communication System in
Section 00”. • Replacement of the keyless start control module
When keyless start control module is replaced with
new one, make sure that r egister remote controller ID
code to keyless start co ntrol module correctly
according to “Registration Procedure for Remote
Controller ID Code”.
• Keyless start control module substitution When the keyless start control module used in
another vehicle was installed in the vehicle, register
the ID code of the remote controller in the keyless
start control module as well as the ignition key
transponder code fo r the immobilizer control system in
ECM. For the registration procedure of the ignition key
transponder code, refer to “Registration of the Ignition
Key in Section 10C”.
Self-Diagnosis FunctionS7RS0BA504002
The keyless start control module has self-diagnosis
function to monitor the system components and circuits
while the keyless start system is at work. When the
keyless start control module detects an abnormality in
the system, it saves the ar ea where such abnormality
has occurred as a DTC in its memory. The DTC stored in
memory of the keyless start control module is indicated
by the key indicator lamp in the combination meter
flashing in a specific pattern. For DTC indication, refer to
“DTC Check” and for the clearing procedure, to “DTC
Clearance”.
Keyless Start System Diagnosis IntroductionS7RS0BA504003
To ensure that the trouble diagnosis is done accurately
and smoothly, observe “Precautions in Diagnosing
Troubles” and follow “Keyless Start System Check”.
Keyless Start System CheckS7RS0BA504004
Step Action YesNo
1 1) Record details of the problem. For your record, use of a questionnaire form will facilit ate collecting information for
proper analysis and diagnosis.
2) Check if the problem described in “Customer Questionnaire (Example)” actually occurs in the vehicle.
(This step should be performed with the customer if
possible.)
Perform “Keyless Start System Operation Inspection”
procedure to check if the symptom which has occurred is
abnormal or not.
3) Check for DTC referring to “DTC Check”, and then record DTC(s).
4) Clear DTC referring to “DTC Clearance” if any DTC exists, and then recheck for DTC.
Is any DTC still detected? Go to Step 2.
Go to Step 3.
2 1) Check and repair referring to applicable “DTC Table”. Are check and repair complete? Go to Step 5.
Check and repair
malfunction part(s), and
go to Step 5.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-15
Terminal Number Circuit Normal
Vo l ta g e Condition
G42-1 Driver side door antenna (–) *0 – 5 V Refer to “Reference waveform No. 1: ”
G42-2 Driver side door antenna (+)
G42-3 Rear end door antenna (–) *0 – 5 V Refer to “Reference waveform No. 1: ”
G42-4 Rear end door antenna (+)
G42-5 Center antenna (–) *–2 – 2 V Refer to “Reference waveform No. 2: ”
G42-6 Center antenna (+) *–10 – 15 V
G42-7 Luggage room antenna (–) *–10 – 10 V Refer to “Reference waveform No. 3: ”
G42-8 Luggage room antenna (+) *–8 – 14 V
G42-9 Ground for keyless start control module 0 – 1 V Ignition switch is at all positions
G42-10 Power source 10 – 12 V Ignition switch is at all positions
G42-11 Ignition switch (ACC signal) 10 – 12 V Ignition switch is at ACC or ON position
0 – 1 V Ignition switch is at any position other than
ACC or ON position
G42-12 — — —
G42-13 — — —
G42-14 Ignition switch (Key reminder signal) 10 – 12 V Insert ignition key to ignition key cylinder
0 – 1 V Pull out ignition key from ignition key
cylinder
G42-15 Ignition switch (ON signal) 10 – 12 V Ignition switch is at ON position
0 – 1 V Ignition switch is at any position other than
ON position
G42-16 Driver side door request switch 10 – 12 V
Request switch of driver side door is
released
0 – 1 V Request switch of driver side door is
pushed
G42-17 — — —
G42-18 CAN communication line (low) *1.6 – 2.5 V Refer to “Reference waveform No. 4: ”
G42-19 CAN communication line (high) *2.5 – 3.6 V
G42-20 Power supply for steering lock unit 4 – 6 V Full time
G42-21 — — —
G42-22 — — —
G42-23 Passenger side door antenna (–) *0 – 5 V Refer to “Reference waveform No. 1: ”
G42-24 Passenger side door antenna (+)
G42-25 — — —
G42-26 — — —
G42-27 — — —
G42-28 — — —
G42-29 Signal for steering lock unit 4 – 6 VIgnition knob switch is at any position other
than ON and OFF position
*0 – 5 V Refer to “Reference waveform No. 5: ”
G42-30 Ground for steering lock unit 0 – 1 V Full time
G42-31 — — —
G42-32 Rear end door request switch 10 – 12 V Request switch of rear end door is released
0 – 1 V Request switch of rear end door is pushed
G42-33 Driver side door lock switch 0 – 1 V
Driver side door is at unlock position and
passenger side door is at lock position
4 – 6 V Driver and passenger side door is at lock
position
*3 – 5 V Refer to “Reference waveform No. 6: ”
G42-34 Ignition knob switch 10 – 12 V
When pushing ignition knob switch of
steering lock unit
0 – 1 V When releasing ignition knob switch of
steering lock unit
G42-35 — — —
G42-36 Passenger side door request switch 10 – 12 V
Request switch of passenger side door is
released
0 – 1 V Request switch of passenger side door is
pushed

Downloaded from www.Manualslib.com manuals search engine 10E-22 Keyless Start System:
Keyless Start Control Module Power and Ground Circuit CheckS7RS0BA504016
Wiring Diagram
Troubleshooting
BLK/ORNG42-9
G42-15
G42-10
G42-11BLU/WHT
WHT/RED
RED/BLK
5V
12V
1234567891011
141516
36 34 33 32 31 30 29 24 23
37
181920
[A]
4 2
3 1
I4RS0BA50022-01
[A]: Keyless start control module connector (viewed from harness side)
3. Circuit fuse
1. Keyless start control module 4. Main fuse
2. Ignition switch
Step Action YesNo
1 Fuse check
1) Turn ignition switch to OFF position.
2) Check circuit fuse and main fuse for condition.
Are fuses in good condition? Go to Step 2.
Replace fuse(s) and
check for short.
2 Power supply circuit check
1) Disconnect connector from keyless start control module.
2) Check for proper connection to “G42-10”, “G42-11” and
“G42-15” terminals of keyless start control module
connector.
3) If OK, measure voltage between the following terminals. • When ignition switch is at OFF positionBetween “G42-10” terminal of keyless start control
module connector and vehicle body ground: 10 – 14 V
• When ignition switch is at ACC position Between “G42-11” terminal of keyless start control
module connector and vehicle body ground: 10 – 14 V
• When ignition switch is at ON position Between “G42-15” terminal of keyless start control
module connector and vehicle body ground: 10 – 14 V
Is check result satisfactory? Go to Step 3.
Repair power supply
circuit.
3 Ground circuit check
1) Check for proper connection to “G42-9” terminal of
keyless start control module connector.
2) If OK, measure resistance between “G42-9” terminal of keyless start control module connector and vehicle body
ground.
Is resistance 1
Ω or less? Power and ground
circuit is in good
condition.
Repair ground circuit.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-33
3) Remove battery (4) from lower case (5).
CAUTION!
Use care not to allow grease or dirt to be
attached on the printed circuit board and the
battery.

4) Replace the battery (lithium disc-type CR 2032 or equivalent battery) so its (+) terminal faces on
remote controller lower case.
5) Install printed circuit board and rubber switch to upper case and then fit lower case securely.
NOTE
• To prevent theft, be sure to break the remote controller be fore discarding it.
• Dispose of the used battery properly according to applicable rules or
regulations. Do not dispose of lithium
batteries with ordinary household trash.

Registration Procedure for Remote Controller
ID Code
S7RS0BA506009
NOTE
• It is possible to register up to 4 remote controllers in keyless start control module.
• Setting keyless start control module to ID code registration mode of remote
controller will erase all remote controller ID
codes that have been registered in keyless
start control module.
Therefore, when re gistering remote
controller ID codes in keyless start control
module, have all of those to be registered
ready and execute their registration at the
same time.
• When registration of more than four remote controller ID codes is attempted,
the oldest remote cont roller ID code will be
erased and that inputted after the fourth
one will be registered.
• When keyless start control module which was used in another vehicle has been
installed, it is nece ssary to perform both
registration of remote controller ID code in
keyless start control module and
registration of ignition key transponder
code in ECM. For registration procedure of
ignition key transponder code, refer to
“Registration of the Ignition Key in Section
10C”.

1. Upper case 3. Printed circuit board
2. Rubber switch
1
2
34
5I4RS0BA50033-01