2007 SUZUKI SWIFT Ground wiring

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-8
Immobilizer Indicator Lamp Remains ON after Engine StartsS7RS0BA304007
Wiring Diagram
Refer to “Immobilizer Control S ystem Wiring Circuit Diagram”.
Circuit Description
When the ignition switch is turned ON, ECM read the code by the coil antenna from ignition key. Then if the code in
transponder in the key match with the one registered with ECM, transmits indication ON signal of immobilizer indicator
lamp to combination meter in order to turn immobilizer indicator lamp on. And then, combination meter turns
immobilizer indicator lamp on. When th e engine starts to run and no malfunction is detected in the system, ECM
transmits immobilizer indicator lamp indication O FF signal to combination meter in order to turn immobilizer indicator
lamp off. And then, comb ination meter turns immobilizer indicator lamp off, but if a malfunction was or is detected,
immobilizer indicator lamp is flashes ON and OF F, when ignition switch turn to ON position.
Troubleshooting 4
Fuse check
1) Turn ignition switch to OFF position.
2) Check for fuse blown at combination meter circuit fuse in
junction block assembly.
Is fuse in good condition? Go to Step 5. Replace fuse and check
for short to power or
ground circuit.
5 CAN communication circuit check
1) Disconnect connectors of all control modules
communicating by means of CAN.
2) Check CAN communication circuit between control modules for open, short and high resistance.
Is each CAN communication circuit in good condition? Go to Step 6. Repair circuit.
6 Combination meter power and ground circuit check
1) Remove combination meter referring to “Combination
Meter Removal and Installation in Section 9C”.
2) Check for proper connection to combination meter connector terminals.
3) If OK, then turn ignition switch to ON position, Check terminal voltage of combination meter between power
supply and ground terminal. Refer to “Combination
Meter Circuit Diagram in Section 9C”.
Is it 10 – 14 V? Substitute a known-
good combination meter
and recheck. If
immobilizer indicator
lamp still remains OFF,
substitute a known good
ECM and recheck.
Repair power supply
and/or ground circuit.
Step Action Yes No
Step
Action YesNo
1 DTC check of ECM
1) Start engine and recheck DTC of ECM while engine
running.
Is DTC P1674, P1675, P1678 and/or P1685 detected? Go to applicable DTC
diag. flow.
Go to Step 2.
2 CAN communication circuit check
1) Disconnect connectors from ECM, BCM, ABS control
module and combination meter.
2) Check CAN communication circuit for open, short and high resistance.
• Between ECM and ABS control module
• Between BCM and ABS control module
• Between BCM and combination meter
Is each CAN communication circuit in good condition? Substitute a known-
good combination meter
and recheck. If
immobilizer indicator
lamp still remains ON,
substitute a known-
good ECM and recheck.
Repair circuit.

Downloaded from www.Manualslib.com manuals search engine 10E-12 Keyless Start System:
DTC ClearanceS7RS0BA504009
1) Perform Steps 1) through 5) of DTC check procedure and have DTC indicated.
2) Open driver side door.
3) Close driver side door and within 10 seconds after that, perform Steps a) to c) described below.
a) Push unlock side (3) of driver side manual door lock switch (1).
b) Push lock side (2) of driver side manual door lock switch.
c) Repeat Steps a) and b) 3 times. At the end of Step c), DTCs are cleared and key
indicator lamp indicates DTC No. 12 (Normal).
4) After completing DTC clearance, remove ignition key from ignition key cylinder.
Keyless Start System Symptom DiagnosisS7RS0BA504010
Door Lock Function of Keyless Start System
NOTE
Before performing trouble diagnosis procedure for door lock function of keyless start system, check
that power door lock system operates properly referring to “Power Door Lock System Operation
Inspection in Section 9F”. If power door lock system does not operate properly, go to “Power Door
Lock System Symptom Diagnosis in Section 9F”.

1
3 2
I4RS0BA50011-02
Condition
Possible cause Correction / Reference Item
All doors can not be
locked / unlocked by all of
door request switches Circuit fuse(s) blown
Replace fuse(s) and check for short circuit.
Remote controller battery dead Replace battery.
Remote controller faulty Check remote controller for operation referring
to “Remote Controller Inspection”.
Wiring or grounding faulty Repair circuit.
Antennas or keyless start control
module faulty Check input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Mo
dule and Its Circuits”.
BCM faulty Check input and output signal of BCM referring
to “Inspection of BCM and its Circuits in
Section 10B”.
All doors can not be
locked / unlocked by any
one of door request
switch Request switch faulty
Check request switch for operation referring to
“Front Door (Driver and Passenger Side), Rear
End Door Request Switch Inspection”.
Wiring or grounding faulty Repair circuit.
Antennas or keyless start control
module faulty Check input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Mo
dule and Its Circuits”.
BCM faulty Check input and output signal of BCM referring
to “Inspection of BCM and its Circuits in
Section 10B”.

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-13
Keyless Engine Start Function
NOTE
Before performing symptom diagnosis procedure for keyless engine start system, check that engine
starts by using ignition key. If it cannot be started by using ignition key, go to “Engine Symptom
Diagnosis in Section 1A”.

Keyless Start System Operation InspectionS7RS0BA504011
Keyless engine start operation
1) Sit in driver seat with re mote controller carried with
you.
2) Check that all doors are closed and ignition key is not inserted in ignition key cylinder.
3) While pushing ignition knob switch (1) of steering lock unit, check if ignition knob switch can be turned
from its lock position.
If key indicator lamp (2) in combination meter lights
in blue and ignition knob switch can be turned from
its lock position in this check, keyless engine start
operation is in good condition.
If key indicator lamp in combination meter lights in
red and ignition knob switch cannot be turned from
its lock position in this check, go to “Keyless Start
System Check”.
NOTE
Pushing ignition knob switch for 5 seconds
or longer causes function to protect steering
lock releasing solenoid against heat to work.
Then steering lock unit stops energizing
solenoid, preventing ignition knob switch
from turning. At the same time, key indicator
lamp in combination mete r turns off. In such
case, take your hand off from ignition knob
switch once and operate it again.

Condition Possible cause Correction / Reference Item
Engine can not be started
by turning Ignition knob
switch Circuit fuse(s) blown
Replace fuse(s) and check for short circuit.
Remote controller battery dead Replace battery.
Remote controller faulty Check remote controller for operation referring
to “Remote Controller Inspection”.
Steering lock unit faulty Check steering lock unit for operation referring
to “Steering Lock Unit Inspection”.
Wiring or grounding faulty Repair circuit.
Antennas or keyless start control
module faulty Check input and output signals of keyless start
control module referring to “Inspection of
Keyless Start Control Mo
dule and Its Circuits”.
ECM faulty Check input and output signal of ECM referring
to “Inspection of ECM and Its Circuits in
Section 1A”.
1
2
I4RS0BA50012-01

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
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[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-23
DTC No. 11: Communication Error with Steering Lock UnitS7RS0BA504017
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition knob switch pushing ignition knob switch.
3) Check DTC referring to “DTC Check”.
Troubleshooting
5V
G42-20
G42-29
G42-30
G22-3
G22-7
G22-8
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141516
36 34 33 32 31 30 29 24 23
37
181920
5V
5V
BRN
BRN/YEL
BLK/YEL
5V
2 1
[A]
I4RS0BA50023-01
[A]: Keyless start control module connector (vie wed from harness side) 2. Steering lock unit
1. Keyless start control module
DTC detecting condition Trouble area
No communication is available between keyless start
control module and steering lock unit • Steering lock unit 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 Steering lock unit circuit check
1) Disconnect connector from keyless start control module.
2) Check for proper connection to “G42-20”, “G42-29” and
“G42-30” terminals of keyless start control module
connector.
3) If OK, check for open, short and high resistance in each circuit.
• Between “G22-3” terminal of steering lock unit connector and “G42-20” terminal of keyless start
control module connector
• Between “G22-7” terminal of steering lock unit connector and “G42-29” terminal of keyless start
control module connector
• Between “G22-8” terminal of steering lock unit connector and vehicle body ground
Is each circuit in good condition? Go to Step 3.
Repair circuit.

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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1
2
3
4 [A]
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