G42 SUZUKI SWIFT 2006 2.G Service User Guide

Downloaded from www.Manualslib.com manuals search engine 10E-18 Keyless Start System:
Reference waveform No. 6
Driver side and passenger side door lock switch signals
(Signal (1) indicating door lock switch status which
keyless start control module receives from BCM)
No DTC Detection After Performing DTC CheckS7RS0BA504014
Wiring Diagram
Description
The keyless start control module detect s DTC by using signals from the key reminder and driver side door request
switches. The keyless start control module makes the key indicator lamp in the combination meter flash on and off by
using CAN communication. Measurement
terminal
Driver side door lock switch
• CH1: “G42-33” to “G42-9”
Passenger side door lock switch
• CH1: “G42-37” to “G42-9”
Oscilloscope setting CH1: 1 V/DIV
TIME: 4 ms/DIV
Measurement
condition Driver side door lock switch
• Driver side door is at lock
position
• Passenger side door is at unlock position
Passenger side door lock switch
• Driver side door is at unlock position
• Passenger side door is at lock position
I4RS0BA50020-02
BLK/ORNG42-9
G42-15
G42-14
G42-16
G42-20G42-29G42-30
G42-10
G42-34
G42-11BLU/WHT
WHT/RED
WHT/RED
WHT/RED
PPL
RED/BLK
5V5V
5V5V
5V
12V
12VWHTREDWHTREDG42-18G42-19G28-9G28-7
BLU/YEL
ORN
BLK/YELBRN/YELBRNG22-3
G22-1
G22-2G22-5
G22-4
G22-6
G22-7G22-8
WHT/RED
WHT/RED
G28-32
6
7
8 1
2
4 5 3
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[A]
I4RS0BA50035-01
[A]: Keyless start control module connector (viewed from harne
ss side) 3. Steering lock solenoid 6. Driver side door request switch
1. Keyless start control module 4. Ignition knob switch 7. Combination meter
2. Steering lock unit 5. Key reminder switch 8. Key indicator lamp

Downloaded from www.Manualslib.com manuals search engine 10E-20 Keyless Start System:
Key Indicator Lamp Circuit Check (Key indicator lamp doesn’t light when ignition knob switch is
pushed.)
S7RS0BA504015
Wiring Diagram
Description
When the ignition knob switch is pushed, the key indicator lamp lights up in blue if you carry the remote controller
registered in the keyless start control module and it lights in red if you carry the remote controller which has not been
registered in the keyless start control module or if you carry no remote controller.
G42-14
G42-20G42-29G42-30
G42-34
WHT/RED
WHT/RED
5V5V
5V5V
BLK/ORNG42-9
G42-15
G42-10
G42-11BLU/WHT
WHT/RED
WHT/RED
RED/BLK
5V
12V
WHTREDWHTREDG42-18G42-19G28-9G28-7
G28-32
BLU/YEL
ORN
BLK/YELBRN/YELBRNG22-3
G22-1
G22-2G22-5
G22-4
G22-6
G22-7G22-8
WHT/RED
WHT/RED
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1
2
4 5
7 6
[A] 3
I5RS0CA50005-01
[A]: Keyless start control module connector (viewed from harness side)
4. Steering lock unit
1. Keyless start control module 5. Steering lock solenoid
2. Combination meter 6. Key reminder switch
3. Key indicator lamp 7. Ignition knob switch

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-21
TroubleshootingStep Action Yes No 1 Combination meter power and ground circuit check
1) Turn ignition switch to ON position.
Do warning lights in combi nation meter other than key
indicator lamp light up? Go to Step 2. Check main fuse, circuit
fuse, combination meter
power and ground
circuit.
2 Keyless start control module power and ground circuit
check
1) Check keyless start control module power and ground
circuit for condition referrin g to “Keyless Start Control
Module Power and Ground Circuit Check”.
Is it in good condition? Go to Step 3. Repair circuit.
3 Steering lock unit ignition knob switch check
1) Check ignition knob switch of steering lock unit for
operation referring to “Steering Lock Unit Inspection”.
Is it in good condition? Go to Step 4. Replace steering lock
unit.
4 Wire harness check
1) Turn ignition switch to OFF position.
2) Disconnect connector from ke yless start control module,
steering lock unit and combination meter.
3) Check for open, short and high resistance in. • Between “G22-2” terminal of steering lock unit connector and “G42-34” terminal of keyless start
control module connector
• Between “G28-7” terminal of combination meter connector and “G42-19” terminal of keyless start
control module connector
• Between “G28-9” terminal of combination meter connector and “G42-18” terminal of keyless start
control module connector
Is it in good condition? Go to Step 5. Repair circuit.
5 Keyless start system operation check
1) With remote controller of which ID code is registered in
keyless start control module carried with you, try to turn
ignition knob switch.
Can it be turned to any position other than “LOCK” position? Replace combination
meter.
Substitute a known-
good keyless start
control module and
recheck.

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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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-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
REDWHTREDWHTG42-19G42-18 3REDWHTREDWHT
REDWHTREDWHT
REDWHTE46-1
G37-4
G42-19G42-18
G28-8G28-10G37-2
C34-7
E46-2
C34-17
1
2
4
53
21
[A]
E23
G42 C37
34
1819
5671011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31343536374042 39 38
44
45 43 41 331
1213
238
34
1819
5671011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 5826
27
28
15
30
56 4832 31343536374042 39 38
44
45 43 41 33
1213
238
[B] [D]
[C]
65
16 15141312 11 43
24 23 2122 10 9 8 7
21
1920 18 17
C34
17 16
26 25 15 14
65 3
42
13 12
23 2224 1110 9
212019 87
18
1
C35
[E]G28
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17181920212223242526272829303132
124
53
67
891011
1213141516171819202122
G37
E46
124
53
67
891011121314
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G28-9G28-7REDWHTE23-3E23-18
REDWHTC37-13C37-12 6
[F]
E03
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
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-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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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

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.