Control system SUZUKI SWIFT 2008 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-25
DTC No. 31: Lost Communication with BCMS7RS0BA504020
Wiring Diagram
DTC Detecting condition and trouble area
DTC Confirmation Procedure1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition key knob by pushing ignition key knob.
3) Check DTC referring to “DTC Check”.
REDWHTE03-12E03-6
REDWHTE03-10E03-8
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C34-17
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I6RS0CA50002-01
[A]: ECM connector (viewed from harness side)
1. ECM
[B]: Keyless start control module connector (v iewed from harness side) 2. TCM (A/T model)
[C]: BCM connector (viewed from harness side) 3. Keyless start control module
[D]: TCM connector (A/T model) (viewed from harness side) 4. BCM
[E]: Combination meter connector (viewed from harness side) 5. Combination meter
[F]: ABS control module connector (viewed from terminal side) 6. ABS control module
DTC detecting conditionTrouble area
Keyless start control module cannot receive data sent by
CAN from BCM • CAN communication circuit
• Keyless start control module
• Combination meter
•BCM

Downloaded from www.Manualslib.com manuals search engine 10E-26 Keyless Start System:
TroubleshootingStep Action Yes No 1 Was “Keyless Start System Check” performed? Go to Step 2. Go to “Keyless Start
System Check”.
2 DTC check of keyless start control module
Is DTC No. 33 detected? Go to “DTC No. 33:
Control Module
Communication Bus
Off”.Go to Step 3.
3 DTC check of BCM
1) Check BCM for DTC.
Is DTC U1073, DTC U1100 or DTC U1101 detected? Go to applicable DTC
diag flow.
Go to Step 4.
4 Control module connector check
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck keyless start control module for DTC.
Is DTC No.31 detected? Go to Step 5. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
5 CAN communication circuit check
1) Disconnect connectors from BCM, combination meter
and keyless start control module.
2) Check CAN communication circuit for open, short and high resistance.
• Between BCM and combination meter
• Between combination meter and keyless start control module
Is each CAN communication circuit in good condition? Go to Step 6. Repair circuit.
6 CAN communication circuit check
1) Disconnect connectors of all control modules
communicating by means of CAN.
2) Check CAN communication circuit between control modules other than Step 5 for open, short and high
resistance.
Is each CAN communication circuit in good condition? Go to Step 7. Repair circuit.
7 DTC check of ECM
1) Connect connectors disconnected control module
communications by means of CAN.
2) Check ECM for DTC.
Is DTC P1678 detected? Check BCM power and
ground circuit. If circuit
is OK, substitute a
known-good BCM and
recheck.
Go to Step 8.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-27
DTC No. 33: Control Module Communication Bus OffS7RS0BA504021
Wiring Diagram
Refer to “DTC No. 31: Lost Communication with BCM”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Clear DTC referring to “DTC Clearance”.
2) Start engine and run it for 1 min. or more.
3) Check DTC referring to “DTC Check”.
Troubleshooting 8
DTC check of keyless start control module
1) Turn ignition switch to OFF position.
2) Disconnect connector of any one of control module other
than keyless start control module.
3) Recheck keyless start control module for DTC.
Is DTC No.31 detected? Using same method,
disconnect connectors
of control module other
than keyless start
control module one by
one to check if DTC
No.31 is detected.
If DTC No.31 is
detected even through
connector of control
module other than
keyless start control
module is disconnected,
substitute a known-
good keyless start
control module and
recheck.Check power and
ground circuit of
disconnected control
module and recheck. If
circuit is OK, substitute
a known-good
disconnected control
module and recheck.
Step Action Yes No
DTC detecting condition
Trouble area
Communication is not availabl e with all control modules
connected by CAN • CAN communication circuit
• Combination meter
• Keyless start control module
•BCM
• TCM (A/T model)
•ECM
• ABS control module
Step
Action YesNo
1 Was “Keyless Start System Check” performed? Go to Step 2.Go to “Keyless Start
System Check”.
2 Control module connector check
1) Check connection of connectors of all control modules
communicating by means of CAN.
2) Recheck keyless start control module for DTC.
Is DTC No. 33 detected? Go to Step 3.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.

Downloaded from www.Manualslib.com manuals search engine 10E-28 Keyless Start System:
DTC No. 51 / No. 52 / No. 53: Driver Side / Passenger Side / Rear End Door Request Switch FailureS7RS0BA504022
Wiring Diagram3
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 4. Repair circuit.
4 DTC check of keyless start control module
1) Turn ignition switch to OFF position.
2) Connect connectors of disconnected control modules
communicating by means of CAN.
3) Disconnect connector of any one control module other than keyless start control module.
4) Recheck keyless start control module for DTC.
Is DTC No.33 detected? Using same method,
disconnect connectors
of control module other
than keyless start
control module one by
one to check if DTC
No.33 is detected.
If DTC No.33 is
detected even through
connector of control
module other than
keyless start control
module is disconnected,
substitute a known-
good keyless start
control module and
recheck.Check power and
ground circuit of
disconnect control
module. If circuit is OK,
substitute a known-
good disconnected
control module and
recheck.
Step
Action YesNo
PPL
BLU/RED YELG42-16
G42-36
G42-32
12V
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I4RS0BA50026-01
[A]: Keyless start control module connector (viewed from harness side) 3. Passenger side door request switch
1. Keyless start control module 4. Rear end door request switch
2. Driver side door request switch

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-29
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Clear DTC referring to “DTC Clearance”.
2) Push request switch of each door.
3) Check DTC referring to “DTC Check”.
Troubleshooting DTC detecting condition Trouble area
DTC No. 51:
Input signal from driver side door request switch remains
ON, unchanged for 10 minutes or longer.
DTC No. 52:
Input signal from passenger side door request switch
remains ON, unchanged for 10 minutes or longer.
DTC No. 53:
Input signal from rear end door request switch remains
ON, unchanged for 10 minutes or longer. • Driver side door request switch and its circuit
• Passenger side door request switch and its circuit
• Rear end door request switch and its circuit
• Keyless start control module
Step
Action YesNo
1 Was “Keyless Start System Check” performed? Go to Step 2.Go to “Keyless Start
System Check”.
2 Keyless start control module voltage check
1) Turn ignition switch to OFF position.
2) Disconnect connector from each door request switch.
3) Check for proper connection to all terminals of each door
request switch connector.
4) If OK, measure voltage between “PPL”, “BLU/RED” or “YEL” terminal of related door request switch connector
and vehicle body ground.
Is voltage 10 – 14 V? Go to Step 3.
Go to Step 4.
3 Request switch check
1) Check related door request switch for function referring
to “Front Door (Driver and Passenger Side), Rear End
Door Request Switch Inspection”.
Is each switch in good condition? Substitute a known-
good keyless start
control module and
recheck.
Replace request switch.
4 Wire harness check
1) Turn ignition switch to OFF position.
2) Check for open, short and high resistance in related
circuit.
• Between “PPL” wire terminal of driver side door request switch connector and “G42-16” terminal of
keyless start control module connector
• Between “BLU/RED” wire terminal of passenger side door request switch connector and “G42-36” terminal
of keyless start control module connector
• Between “YEL” wire terminal of rear end door request switch connector and “G42-32” terminal of keyless
start control module connector
Is it in good condition? Substitute a known-
good keyless start
control module and
recheck.
Repair circuit.

Downloaded from www.Manualslib.com manuals search engine 10E-32 Keyless Start System:
Keyless Start Control Module Removal and
Installation
S7RS0BA506006
Removal1) Disconnect negative (–) cable at battery.
2) Remove glove box from instrument panel.
3) Remove keyless start cont rol module (1) as follows.
• For vehicle equipped with M/T:
a. Disconnect connector from keyless start control module.
b. Remove keyless start control module mounting bolt and then remove keyless start
control module from steering support member
(2).
• For vehicle equipped with A/T: a. Remove TCM (3) from vehicle body referring to “Transmission Control Module (TCM)
Removal and Installation in Section 5A”.
b. Disconnect connector from keyless start control module.
c. Remove keyless start control module mounting bolt and then remove keyless start
control module from steering support member.
Installation
For installation, reverse removal procedure.
If Keyless start control module is replaced, register ID
code of remote controller in to Keyless start control
module, referring to “Registration Procedure for Remote
Controller ID Code”.
Remote Controller InspectionS7RS0BA506007
Check that remote controller operation indicator lamp (3)
lights up when lock (1) or un lock (2) button of remote
controller is pushed.
If it doesn’t light up in this check, replace battery and
then recheck. If it doesn’t light up even after battery
replacement, replace remote controller.
NOTE
When remote controller transmits lock or
unlock signal, it makes operation indicator
lamp light up.

Replacement of Remote Controller BatteryS7RS0BA506008
If remote controller operation i ndicator lamp fails to light
up when lock or unlock button of remote controller is
pushed, replace its battery as follows.
1) If ignition key (1) is inse rted in remote controller,
remove it.
2) With tip of flat blade screwdriver (2) put in slot (3) of remote controller (4), pry it open.1
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I4RS0BA50030-01
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I4RS0BA50032-01

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
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5I4RS0BA50033-01

Downloaded from www.Manualslib.com manuals search engine 10E-34 Keyless Start System:
If remote controller or keyless start control module is
replaced with a new one or additional remote controller
is necessary, register ID code(s) of remote controller.1) Sit in driver seat and close all doors.
2) Check that door lock of driver seat is unlocked.
3) Insert ignition key (1) in to ignition key cylinder.
4) Perform Steps a) through f) described blow within 25 seconds after Step 3).
a) First push manual door lock switch (2) toward
lock side (3) and then push it toward unlock side
(4).
b) Repeat Step a) 2 more times.
c) Push lock side of manual door lock switch.
d) Remove ignition key from ignition key cylinder once and then insert it again.
e) Repeat Step d) 3 more times.
f) Start engine and wait for 3 seconds.NOTE
When 60 seconds elapse after engine is
started, the above process to enter
registration mode will be cancelled.
Therefore, be sure to proceed to the next
step within 60 seconds.

5) Turn ignition switch to OFF position. When ignition switch is turned to OFF position,
buzzer sounds twice and door lock is activated from
lock position to unlock po sition. This operation
indicates that keyless st art control module has
entered registration mode.
6) Push lock or unlock button of remote controller within 30 seconds after Step 5) to be registered.
When lock or unlock button of remote controller is
pushed, buzzer sounds twice, door lock is activated
to lock position and then to unlock position. This
operation indicates that remote controller ID code
has been registered in keyless start control module.
If an additional remote controller needs to be
registered, repeat the procedure of Step 6) within 30
seconds after Step 5).
7) To end registration mode, remove ignition key from ignition key cylinder or turn it to ON position.
If engine start function of keyless start system does
not work after registration , check ECM if DTC P1615
is detected. If it is detected, go to “DTC P1615: ID
Code Does Not Registered (Vehicle equipped with
keyless start system only) in Section 10C”. If it is not
detected, perform registration procedure again.
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I4RS0BA50034-02