2006 SUZUKI SX4 G272

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-4
BLK/BLU
BLK/YEL BLK/RED
12V
12V
+BB
BLU/YEL
WHT/BLU
+BB
RED/YEL G272-7
YEL/REDYEL/BLK
5V
IG1
IG2 IG2
L312-4
ORNL314-9YEL
BLUL313-3BLUPPL/WHT
+B +B
GRN/RED
GRN
GRN
RED/BLU
L315-9
L315-10
L01-10L01-1
ON DOOROFF+B
+B
IG1WHT
L312-5 12V
LT GRN
BLK
5V5V
5V
PNK
+BB
GRN G273-2BLKBLK/ORNG272-9
G271-3
BLK/ORNL314-4
BLU G273-5
WHTE324-2
WHTG272-11
+B
REDWHT
REDWHT
REDWHT
+BB
1
30
31
6
7
8
15
16
18
19
20 20 20
21
62 6339
40
42 41
43
4346 46 45 44
484947
50
51
56
5758
59
60
61
IG1
BRN/YEL23
25 22RED/BLK
24RED/BLU
IG128GRN/WHT33
34
12V 12VLT GRN/BLK
BRN12V
L01-1226GRY/WHT
GRY/RED
IG129GRN/YEL
12V27WHT/RED
+B
32
BLU/YEL
37
35
36
G04-16
IG1
IG1
IG1
IG1
12V
17IG2
WASH
OFF
INT
ON
WASH, ON WR EWON INTBLU/BLK
YELG272-20
GRN12V
12V 5
4
PPLG04-1511
12
13
14
GRNE325-3
G272-3BLU
GRY
IG19
+B
5V
L313-2YEL
10
REDWHT
REDWHT 32
L01-11
G04-21
G04-22
E04-10
E04-8
G04-8GRY
E04-11
E04-4
G04-11YEL
G04-13
G04-14G04-12
L01-7
L01-15
L01-3
L01-14
E04-5
L01-6
L01-16
L01-17
L01-5
L01-4
G04-18
G04-17G04-5
E04-9
G04-1G04-3
G04-2G04-4
E04-2 E04-1
38
REDWHT
REDWHT
REDWHT
YEL +BL315-143
BLK/RED
BLK/REDL314-6
G271-752
BLK/REDL314-7
53BLK/REDL314-8
54
55
46 46 45 44GRN
RED/BLU
L315-9
L315-10 +B
43
[A]
[B]
I6RW0DA20001-01
[A]: Without security alarm system 21. Rear end door switch 43. Door lock actuator relay (if equipped)
[B]: With security alarm system 22. Driver side seat belt switch 44. Driver side door lock actuator (if equipped)

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-16
BCM Power Circuit and Ground Circuit CheckS6RW0DA204007
Wiring Diagram
Troubleshooting
+B
IG1
+BB
GRNG273-2BLKBLK/ORNG272-9
G271-3
BLK/ORNL314-4
BLU G273-5
WHTE324-22
3
1
E324 L314
1 2 4 53 6 7 8 9
10
11 12 13 14 15 16 17 181 21 2 4 53 61
2 4 53 6 7 8 9 10
7 8 9 10 11 12
11 12 13 14 15 16 17 18 19 20
G272 G271
1 2
4
65
G273[A] [A] [A]
3
[A]
I6RW0CA20006-02
[A]: Junction block connector viewed from harness side 2. Ignition switch
1. Junction block 3. Battery
Step Action Yes No
1Fuse check
1) Turn ignition switch to OFF position.
2) Check circuit fuses for condition.
Are circuit fuses in good condition?Go to Step 2. Replace fuse and check
for short circuit to
ground.
2Power supply circuit check
1) Disconnect connectors from junction block.
2) Check for proper connection to junction block connector
at terminal “E324-2”.
3) If OK, then measure voltage between “E324-2” terminal
of junction block connector and vehicle body ground.
Is voltage 10 – 14 V?Go to Step 3. Repair power supply
circuit.
3Power supply circuit check
1) Check for proper connection to junction block connector
at terminals “G273-2” and “G273-5”.
2) If OK, turn ignition switch to ON position.
3) Measure voltage between following terminals.
• Between “G273-2” terminal of junction block
connector and vehicle body ground
• Between “G273-5” terminal of junction block
connector and vehicle body ground
Is each voltage 10 – 14 V?Go to Step 4. Repair power supply
circuit.

Downloaded from www.Manualslib.com manuals search engine 10B-17 Body Electrical Control System:
DTC B1133 (DTC No. 1133): Battery Voltage Too HighS6RW0DA204008
Wiring Diagram
Refer to “BCM Power Circuit and Ground Circuit Check”.
DTC Detecting Condition and Possible Cause
Flow Test Description
Step 1: Check charging system
DTC Troubleshooting4Ground circuit check
1) Turn ignition switch to OFF position.
2) Check for proper connection to junction block connector
at terminals “G271-3”, “G272-9” and “L314-4”.
3) If OK, then measure resistance between following
terminals.
• Between “G271-3” terminal of junction block
connector and vehicle body ground
• Between “G272-9” terminal of junction block
connector and vehicle body ground
• Between “L314-4” terminal of junction block connector
and vehicle body ground
Is each resistance 2
Ω or less?BCM power supply
circuit and ground circuit
are in good condition.Repair ground circuit. Step Action Yes No
DTC detecting condition Possible cause
Power voltage supplied from battery to BCM is
higher than 16V.• Charging system malfunction
• BCM malfunction
Step Action Yes No
1Charging system operation check
1) Check generator for operation referring to “Generator
Test (Overcharged Battery Check) in Section 1J”.
Is it in good condition?Substitute a known
good BCM (included in
junction block) and
recheck.Repair charging system.

Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-24
Junction block connector “E324”
Junction block connector “E325”
Junction block connector “G271”
Junction block connector “G272”
Junction block connector “G273”
Junction block connector “L312”
Junction block connector “L313”Terminal Circuit Normal voltage Condition
E324-2 Backup power source 10 – 14 V Ignition switch is at all positions
Terminal Circuit Normal voltage Condition
E325-3 Horn10 – 14 V Horn switch is at ON position
0 V Horn switch is at OFF position
Terminal Circuit Normal voltage Condition
G271-3 Ground for BCM 0 V Ignition switch is at all positions
G271-7Rear end door window
defogger indicator light10 – 14 VEngine is running and rear end door window
defogger indicator light is lit up
0 VEngine is running and rear end door window
defogger indicator light is not lit up
Terminal Circuit Normal voltage Condition
G272-3 Horn switch10 – 14 V Horn switch is not pushed
0 V Horn switch is pushed
G272-7 Lighting switch10 – 14 VEngine is running (with DRL model) or lighting
switch is at any position other than OFF
position
0 V Lighting switch is at OFF position
G272-9 Ground for BCM 0 V Ignition switch is at all positions
G272-11 Hazard warning switch10 – 14 V Hazard warning switch is at OFF position
0 VHazard warning switch is at ON position or
lock or unlock button of keyless entry
transmitter (answer back control) is pushed
Terminal Circuit Normal voltage Condition
G273-2 Power source (IG)10 – 14 V Ignition switch is at ON position
0 VIgnition switch is at any position other than
ON position
G273-5 Power source (ACC)10 – 14 V Ignition switch is at ACC or ON position
0 VIgnition switch is at any position other than
ACC or ON position
Terminal Circuit Normal voltage Condition
L312-4Power supply for rear wiper
motor10 – 14 VIgnition switch is at ON position
L312-5 Interior light10 – 14 VInterior light switch is at DOOR position and
interior light is not lit up
0 VInterior light switch is at DOOR position and
interior light is lit up
Terminal Circuit Normal voltage Condition
L313-2 Air bag communication line*0 – 1 V
↑↓
4 – 6 VRefer to “Reference waveform No. 10: ”
L313-3Serial communication line of
data link connector for SDM7 – 12 V Ignition switch is at ON position