rear door lock SUZUKI SWIFT 2008 2.G Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine 10E-14 Keyless Start System:
Door Lock Operation (Keyless Start System)S7RS0BA504012
1) Check that all door locks are released and all doors are closed.
2) With remote controller of which ID code is registered in keyless start control m odule carried with yourself,
check that pushing driver door, passenger door or
rear end door request switch once locks all doors.
3) Check that pushing request switch of driver door, passenger door or rear end door once releases all
door locks.
Inspection of Keyless Start Control Module and Its CircuitsS7RS0BA504013
Keyless start control module and its circuits can be che cked at keyless start control module wiring couplers by
measuring voltage and resistance.
CAUTION!
Keyless start control module cannot be checked by itself. It is strictly prohibited to connect voltmeter
or ohmmeter to keyless start control module with coupler disconnected from it.

Voltage Check
1) Disconnect negative (–) cable at battery.
2) Remove keyless start control module from vehicle body referring to “Keyless Start Control Module Removal and
Installation”.
3) Connect connector to keyless start control module.
4) Check voltage at each terminal number of couplers connected.
NOTE
• As each terminal voltage is affected by the battery voltage, confirm that it is 11 V or more when ignition switch is ON.
• Voltage with asterisk (*) cannot be measured by voltmeter because it is pulse signal.

I4RS0BA50013-01
1234567891011
141516
36 34 33 32 31 30 29 24 23
37
181920
[A]
I4RS0BA50014-02
[A]: Keyless start control module connector (viewed from harness side)

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-16 Keyless Start System:
Reference waveform No. 1
Driver, passenger and rear end door antenna request
signals (Request signal (1) transmitted by each door
antenna when each door request switch is pushed)Reference waveform No. 2
Center antenna signal
(Request signal (1) transmitted by center antenna when
each door request switch is pushed)
G42-37 Passenger side door lock switch
0 – 1 V
Passenger side door is at unlock position
and driver 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: ”
G42-38 — — —
G42-39 — — —
G42-40 — — —
Terminal
Number Circuit Normal
Vo l ta g e Condition
Measurement
terminalDriver side door antenna
• CH1: “G42-2” to “G42-9”
• CH2: “G42-1” to “G42-9”
Passenger side door antenna
• CH1: “G42-24” to “G42-9”
• CH2: “G42-23” to “G42-9”
Rear end door antenna
• CH1: “G42-4” to “G42-9”
• CH2: “G42-3” to “G42-9”
Oscilloscope setting CH1: 5 V/DIV, CH2: 5V/DIV
TIME: 40 ms/DIV
Measurement
condition Request switch of each door is
pushed with remote controller
carried
I4RS0BA50015-02
Measurement
terminal
CH1: “G42-6” to “G42-9”
CH2: “G42-5” to “G42-9”
Oscilloscope setting CH1: 5 V/DIV, CH2: 2 V/DIV
TIME: 20 ms/DIV
Measurement
condition • Ignition knob switch of steering
lock unit is pushed
• Any one of door is opened
• Request switch of each door is pushed
I4RS0BA50016-02

Downloaded from www.Manualslib.com manuals search engine Keyless Start System: 10E-31
Front Door (Driver and Passenger Side), Rear
End Door Request Switch Inspection
S7RS0BA506002
1) Remove door trim from door panel.For front door trim, refer to Step 1) to 3) of “Front
Door Glass Removal and Inst allation in Section 9E”.
For rear end door trim, refer to Step 1) of “Rear End
Door Lock Assembly Remo val and Installation in
Section 9F”.
2) Check for continuity between terminals “1” and “2” at each switch position as shown below. If check result
is not as specified, replace.
Request switch specification
ON position (request switch pushed): Continuity
OFF position (request switch released): No
continuity
Steering Lock Unit Removal and InstallationS7RS0BA506003
For removal and installation, refer to “Steering Lock
Assembly (Ignition Switch) Removal and Installation in
Section 6B”.
Steering Lock Unit InspectionS7RS0BA506004
Check key reminder switch and ignition knob switch in
steering lock unit for operation referring to “Ignition
Switch Inspection in Section 9C”.
Front Door Lock Switch InspectionS7RS0BA506005
1) Remove door trim from door panel referring to Step 1) to 3) of “Front Door Glass Removal and
Installation in Section 9E”.
2) Check for continuity between terminals “1” and “2” at each switch position as sh own below. If check result
is not as specified, replace.
Door lock switch specification
LOCK position: No continuity
UNLOCK position: Continuity
[A]: Front door request switch (driver and passenger side)
[B]: Rear end door request switch
[A]
1
2
[B]
1
2
I4RS0BA50028-02
[A]: Lock [C]: Right side door lock switch
[B]: Unlock [D]: Left side door lock switch
[C][D]
[A] [B]
1212
I4RS0BA50029-01