L01 SUZUKI SWIFT 2005 2.G Service Owner's Manual
[x] Cancel search | Manufacturer: SUZUKI, Model Year: 2005, Model line: SWIFT, Model: SUZUKI SWIFT 2005 2.GPages: 1496, PDF Size: 34.44 MB
Page 1408 of 1496

Downloaded from www.Manualslib.com manuals search engine 10B-5 Body Electrical Control System: 
GRY/RED
BLK/YEL
BLK/RED
12V
12V
+BB
BLU/YEL
BLU
12V
WHT/BLU
12V
+BB
RED/YEL
G34-7
YEL/REDYEL/BLK
5V
IG1
IG1
IG1
WASH
OFFINT ON 
WASH,  ON WR EWON
INT
BLU/BLK
YELE39-9
GRN
12V12V
YELL05-5 
BLU/YEL
PPL/WHT
12V
G37-5PPL/WHTPPL/WHT
+B +B
GRN/RED
GRN
GRN
RED/BLU
L06-9
L06-10
L01-10L01-1
ON
DOOR
OFF+B
+B
IG1 WHT
K01-5
12V
12V
12V
5V
12V
12V
L04-2YEL
RED/BLK
WHT
GRN/WHT
BRN
LT GRN/BLK
BRN
GRY/WHT
GRY
12VLT GRN
12V
12V
12V
12V
RED/BLK
LT GRN
BRN/WHT
5V5V
5V
PNK
+BB
GRNG32-2
+B
BLKBLK/ORNG34-9
G33-3
BLK/ORNL05-4
BLU
G32-5
WHTE40-2
G34-11
E41-3G34-3BLU
REDWHTREDWHT
+BB
1
2 3
4
5 67
8
9
10
11 12
13 14 14 14 15
16
17
18
19
20
21
22
23
24
52
51 25
26
28
30
31
32
33
33 36 36
+B
GRN
RED/BLU
L06-9
L06-10
33
36 3635 34
35 34
37 50 38
39
40
45 46
47
48 49
[B] [A]
[C]
G37-21
E46-10
GRY
YEL
BRN/YEL
L01-12
L01-4
L01-8
L01-11 
GRN
WHT
G37-22
E46-4
G37-8
E46-8
G37-16
E46-11
G37-11
G37-13
G37-14
G37-12
L01-7
L01-15
L01-3
L01-14
L01-16
E46-5
L01-6
L01-17
L01-5
G37-17
G37-18
E46-1E46-2
E46-9
+B
12V
12V
BLK/RED
BLK/REDL05-6
G33-7 54
BLK/REDL05-7
55
BLK/REDL05-842
43
44
27REDWHT
57
+B41
56
ORNL05-9 
L04-3
REDWHTREDWHT
REDWHT
REDWHT
G37-4G37-2
RED/BLKWHT/BLKG37-3G37-1 58
59
29
53
I7RS0BA20003-02  
Page 1434 of 1496

Downloaded from www.Manualslib.com manuals search engine 10B-31 Body Electrical Control System: 
Inspection of BCM and its CircuitsS7RS0BA204018
BCM and its circuits can be checked at BCM wiring couplers by measuring voltage and resistance.
CAUTION! 
BCM cannot be checked by itself. It is strictly prohibited to connect voltmeter or ohmmeter to BCM 
with couplers disconnected from it.
 
Voltage Check1) Disconnect negative (–) cable at battery.
2) Remove BCM (included in junction block assembly) refe rring to “BCM (Included in Junction Block Assembly) 
Removal and Installation”.
3) Connect connectors to BCM (1) and junction block assembly (2).
4) Check voltage at each terminal number of couplers connected. For connector and terminal number, refer to “Connector  Layout Diagram of BCM and Junction Block Assembly”.
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 (*) can not be measured by voltmeter because it is pulse signal. Check it with oscilloscope if necessary.
 
BCM connector “L01”
1
2
1
2
I4RS0AA20030-01
Terminal CircuitNormal voltage Condition
L01-1 Passenger side door lock 
actuator control 
(Unlock) (if equipped) 10 – 14 V
Unlock signal is output fo
r passenger side door lock 
actuator
0 V Unlock signal is not output for passenger side door lock 
actuator
L01-2 — — —
L01-3 Rear end door switch 10 – 14 V Rear end door is closed
0 V Rear end door is opened
L01-4 Rear end door opener switch 10 – 14 V Rear end door switch is not pushed
0 V Rear end door switch is pushed
L01-5 Manual door lock switch
(Unlock) 10 – 14 V
Manual door lock switch is at any position other than 
unlock position
0 V Manual door lock switch is at unlock position
L01-6 Parking brake switch *0 – 3 V
↑↓
10 – 14 V Refer to “Reference waveform No. 1: ”
0 V Ignition switch is at ON po
sition and parking brake lever 
is pulled up
L01-7 Driver side door switch 10 – 14 V Driver side door is closed
0 V Driver side door is opened  
Page 1435 of 1496

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System:  10B-32
BCM connector “E46”L01-8
“3” position switch 
(A/T model) *0 – 1 V
↑↓
10 – 14 V Refer to “Reference waveform No. 2: ”
0 V Ignition switch is at ON positi
on and A/T select lever is at 
“2” or “3” position
L01-9 — — —
L01-10 Driver side door lock actuator 
control (Unlock) (if equipped) 10 – 14 V Unlock signal is output for driver side door lock actuator.
0 V Unlock signal is not output for driver side door lock 
actuator.
L01-11 Rear end door opener 
actuator control 0 V Rear end door opener actuator is not in operation
10 – 14 V Rear end door opener actuator is in operation
L01-12 Manual door lock switch
(Lock) 10 – 14 V
Manual door lock switch is at any position other than lock 
position
0 V Manual door lock swit ch is at lock position
L01-13 — — —
L01-14 Driver side seat belt switch *0 – 3 V
↑↓
10 – 14 V Refer to “Reference waveform No. 3: ”
0 V Ignition switch is at ON position and driver side seat belt 
is unfastened
L01-15 Door switch (other than driver 
side door and rear end door) 10 – 14 V
Rear right and left side door and passenger side door are 
closed
0 V Any one of the door is opened (except driver side door 
and rear end door)
L01-16 Driver side door key cylinder  switch (Lock) 10 – 14 V
Driver side door key cylinder switch is at any position 
other than lock position
0 V Driver side door key cylinder switch is at lock position
L01-17 Driver side door key cylinder 
switch (Unlock) 10 – 14 V
Driver side door key cylinder switch is at any position 
other than unlock position
0 V Driver side door key cylinder  switch is at unlock position
L01-18 — — —
Terminal Circuit Normal voltage Condition
Terminal
CircuitNormal voltage Condition
E46-1 CAN communication line 
(high) for ABS/ESP
® control 
module *2.5 – 3.6 V
Refer to “Reference waveform No. 4: ”
E46-2 CAN communication line 
(low) for ABS/ESP
® control 
module *1.6 – 2.5 V
E46-3 — — —
E46-4 Generator “L” terminal 10 – 14 V Engine is running
0 V Ignition switch is at ON position
E46-5 Brake fluid level switch *0 – 3 V
↑↓
10 – 14 V Refer to “Reference waveform No. 1: ”
0 V Ignition switch is at ON position, parking brake lever is 
released and brake fluid level is lower than MIN level
E46-6 — — —
E46-7 — — —
E46-8 Sensor ground for outside air 
temperature sensor 
(if equipped) 0 V
—
E46-9 Serial communication line of 
data link connector for ECM, 
TCM, ABS and 
P/S control 
module 8 – 12 V Ignition switch is at ON position
E46-10 Outside air temperature 
sensor (if equipped) About 1.5 VIgnition switch is at ON position and outside air 
temperature approx. 20 
°C (68  °F)  
Page 1438 of 1496

Downloaded from www.Manualslib.com manuals search engine 10B-35 Body Electrical Control System: 
Junction block connector “L06”
Reference waveform No. 1
Parking brake or brake fluid level switch signal (1)Reference waveform No. 2
“3” position switch signal (1) for TCM
L05-6
Right side door mirror heater 
(if equipped) 10 – 14 V
Engine is running and rear end door window defogger 
is in operation
0 V Engine is running and rear end door window defogger 
is not in operation
L05-7 Left side door mirror heater (if 
equipped) 10 – 14 V
Engine is running and rear end door window defogger 
is in operation
0 V Engine is running and rear end door window defogger 
is not in operation
L05-8 Rear end door window 
defogger wire 10 – 14 V
Engine is running and rear end door window defogger 
is in operation
0 V Engine is running and rear end door window defogger 
is not in operation
L05-9 Rear wiper control 10 – 14 V
Ignition switch is at ON posi
tion and rear wiper is not in 
operation
0 V Ignition switch is at ON pos
ition and rear wiper is in 
operation
Terminal Circuit Normal voltage Condition
Terminal
CircuitNormal voltage Condition
L06-9 Door lock actuator control 
(Unlock) 10 – 14 V Unlock signal is outpu
t for rear door lock actuator
0 V Unlock signal is not output for rear door lock actuator
L06-10 Door lock actuator control 
(Lock) 10 – 14 V Lock signal is output for all door lock actuators
0 V Lock signal is not output for all door lock actuators
Measurement terminal Parking brake switch
CH2: “L01-6” to “G33-3”
Brake fluid level switch
CH2: “E46-5” to “G33-3”
Oscilloscope setting CH2: 5 V / DIV
TIME: 10 ms / DIV
Measurement 
condition Parking brake switch:
• Ignition switch is at ON 
position, parking brake lever 
is released
Brake fluid level switch
• Ignition switch is at ON  position, brake fluid level is in 
normal
I4RS0AA20018-02
Measurement terminal CH2: “L01-8” to “G33-3”
Oscilloscope setting CH2: 5 V/DIV
TIME: 4 ms/DIV
Measurement 
condition Ignition switch is at ON position 
and A/T selector lever is at any 
position other than “2” or “3” 
position
I4RS0AA20015-02  
Page 1439 of 1496

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System:  10B-36
Reference waveform No. 3
Driver side seat belt switch signal (1)
Reference waveform No. 4
BCM – ABS/ESP® control module CAN communication 
signal Reference waveform No. 5
Oil pressure switch signal (1)
Reference waveform No. 6
BCM – DLC CAN communication signal
Measurement terminal CH2: “L01-14” to “G33-3”
Oscilloscope setting
CH2: 5 V/DIV
TIME: 4 ms/DIV
Measurement 
condition Ignition switch is at ON position 
and driver side seat belt is 
fastened
Measurement terminal CH2: “E46-1” to “G33-3”
CH3: “E46-2” to “G33-3”
Oscilloscope setting CH2: 1 V/DIV
CH3: 1 V/DIV
TIME: 40 
µs/ DIV
Measurement 
condition Ignition switch is at ON position
1. CAN communication line signal (High)
2. CAN communication line signal (Low)
I4RS0AA20016-02
I4RS0AA20017-02
Measurement terminal CH2: “E46-11” to “G33-3”
Oscilloscope settingCH2: 5 V / DIV
TIME: 10 ms / DIV
Measurement 
condition Engine is running and oil 
pressure is in normal condition
Measurement terminal CH2: “G37-1” to “G33-3”
CH3: “G37-3” to “G33-3”
Oscilloscope setting CH2: 1 V / DIV
CH3: 1 V / DIV
TIME: 40 
µs / DIV
Measurement 
condition Ignition switch is at ON position
1. CAN communication line signal (High)
2. CAN communication line signal (Low)
I4RS0AA20018-02
I4RS0AA20019-02