2006 SUZUKI SX4 Ecm diagram

Downloaded from www.Manualslib.com manuals search engine 7A-2 Heater and Ventilation:
Schematic and Routing Diagram
Heater and Ventilation Wiring Circuit DiagramS6RW0D7102001
Non–A/C
Manual A/C
Refer to “A/C System Wiring Diagram in Section 7B”.
Auto A/C
Refer to “A/C System Wiring Diagram in Section 7B”.
Component Location
Electronic Control System Components LocationS6RW0D7103001
Refer to “Electronic Control System Components Location in Section 7B” (non-A/C and manual A/C) or “Electronic
Control System Components Location in Section 7B” (auto A/C).
5V
BLK
RED/BLK3
5 72
G154-3
G154-4
G154-7
G154-8
G154-10
G154-13
G155-2
G155-3
G155-7
G155-6
G155-1
G154-9
G154-14
BLK/WHT
YEL
BLU/WHT
RED
RED/BLKRED
GRN
GRN/YEL
RED/YEL
RED/BLU
BLK/ORN
46
8
BLU
YELGRN
WHT
13
1514
[A]21
BLK/RED
12V
BLK/YELBLK/WHTM
BLK
1IG1
IG2
12
BLK/RED
M 10
11
11
BLU/WHT 19
16
17
18 9 20
I6RW0C710003-01
[A]: Illumination control model 6. Blower motor resistor 12. Main fuse box 18. Illumination light
1. Ignition switch 7. Junction block assembly 13. Blower speed selector 19. Rear defogger relay
2. Blower motor 8. BCM 14. Air intake selector 20. Rear defogger
3. HVAC control unit 9. ECM 15. Rear defogger switch 21. Tail light
4. Lighting switch 10. Air intake control actuator 16. “REC” indicator light
5. Blower motor relay 11. To BCM 17. Rear defogger indicator

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Manual Type 7B-5
A/C System Wiring DiagramS6RW0D7212002
[A]
7
WHT
GRN5YELBLK
3
G154-3
G154-4
G154-7
G154-8
G154-10
G154-13
G154-5
G154-6
G155-5
G155-2
G155-3
G155-7
G155-6
G155-1
G154-9
G154-14
BLK/WHT
YEL
BLU/WHT
RED
BRN
GRN/WHT
RED/BLK
RED
GRN
GRN/YEL
RED/YEL
RED/BLU
20
21
23 22
BLK/RED
6 2
MBLK/WHTBLK/YEL
M
11
4RED/YEL 1
E01-49
12
E01-16
GRY 13
12V
BLU/WHTE01-3510
E01-48
18
19RED/BLK
BLK/RED
BLK/RED
BRN/WHTE01-60
E01-1
E01-29BLK/WHT
M
BLU/YELBLK/YEL
5V5V 5V
WHT/BLK
9
ORN
14E01-36
C01-12C01-14GRY/REDRED/BLU
E01-41
RED/BLK
RED
WHT
8
BLK
BLK/ORN
BLU IG1
IG2
5V
17
28
29
31
2726 2524
16
16
30
34
33E01-4 E01-19WHTRED
C01-50C01-49WHTRED
32
LT GRN
C01-57
C01-2415
GRY/BLU5V
I6RW0C721002-01
[A]: Illumination control model 9. A/C refrigerant pressure
sensor18. Condenser cooling fan relay 27. Illumination light
1. Ignition switch 10. ECM 19. Condenser cooling fan motor 28. Rear defogger relay
2. Blower motor 11. Air intake control actuator 20. Blower speed selector 29. Rear defogger
3. HVAC control unit 12. Compressor relay 21. A/C switch 30. Main relay
4. Lighting switch 13. Compressor 22. Air intake selector 31. Tail light
5. Blower motor relay 14. Evaporator temperature
sensor23. Rear defogger switch 32. TCM
6. Blower motor resistor 15. ECT sensor 24. “A/C” indicator light 33. To other control module and DLC
7. Junction block assembly 16. To BCM 25. “REC” indicator light 34. ABS control module
8. BCM 17. Main fuse box 26. Rear defogger indicator

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-57
SUN LOAD (W/m2): This parameter indicates the
amount of sunlight detected by sunload sensor.
MODE CONT SWITCH (Air flow selector position,
AUTO, FACE, B/L, FOOT, D/F, DEF): This
parameter indicates the selected position of air flow
selector.
FAN CONT SWITCH (Blower speed selector, AUTO,
OFF, 1st – 8th): This parameter indicates the
selected position of blower speed selector.
FAN DESIRE VOLT (Fan desired voltage, V): This
parameter indicates the consumption voltage of
blower motor.
AIR MIX POS SENSOR (Temperature control
actuator position sensor, V): This parameter
indicates the input signal from position sensor in
temperature control actuator.
MODE POS SENSOR (Air flow control actuator
position sensor, V): This parameter indicates the
input signal from position sensor in air flow control
actuator.
A/C CONT SIG (A/C control signal, ON, OFF): This
parameter indicates the state of A/C switch.BLOWER LOAD SIG (Blower fan load signal, ON,
OFF): ON: Position of blower speed selector is 1st
position or more.
OFF: Position of blower speed selector is OFF
position.
AIR INTAKE MODE (Air intake selector position,
AUTO, FRE, REC): This parameter indicates the
selected position of air intake selector.
REFRIGERANT PRESSURE (A/C refrigerant absolute
pressure, kPa): This parameter indicates the A/C
refrigerant absolute pressure calculated by ECM
A/C COMP CLUCH (A/C compressor magnet clutch,
ON, OFF): This parameter indicates the state of the
A/C compressor magnet clutch.
VEHICLE SPEED (km/h, mph): This parameter
indicates the vehicle speed calculated by ECM.
ENGINE TYPE (Engine type signal, J20, M16 or
M15): This parameter indicates the engine type
signal transmitted by ECM.
METER SPEC (Combination meter spec signal, EU,
UK, US, Canada, DOM): This parameter indicates
the combination meter spec signal transmitted by
combination meter.
Visual InspectionS6RW0D7224009
Check visually the following parts and systems.
DTC B1502: Inside Air Temperature Sensor Circuit MalfunctionS6RW0D7224010
Wiring DiagramInspection item Correction
• Refrigerant leakage and amount
• A/C pipe or hose disconnection,
looseness and
deterioration
• A/C compressor drive belt looseness and damageRefer to “Compressor Drive Belt Inspection
and Adjustment”.
• Battery fluid level and corrosion
of terminal
• Connectors of electric wire harness disconnection and
friction
• Fuses burning
• Parts installation and damage
• Other parts that can be checked visually
5V
G20
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 24 23 22 25 26 27 28 29 30
ORNORNPNK/BLKG20-10
21
3 [S]
[G]
G20-24
I7RW01722004-01
[S]: Inside air temperature sensor signal circuit 1. HVAC control module 3. To other sensors
[G]: Inside air temperature sensor ground circuit 2. Inside air temperature sensor

Downloaded from www.Manualslib.com manuals search engine 7B-70 Air Conditioning System: Automatic Type
DTC B1546: A/C Refrigerant Pressure MalfunctionS6RW0D7224019
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1551: Serial Communication Circuit MalfunctionS6RW0D7224020
Wiring DiagramDTC detecting condition Trouble area
• A/C refrigerant pressure sensor signal voltage is lower than specified value
even though outside air temperature is higher than specified value for
specified time continuously.
• Insufficient refrigerant in A/C system• Insufficient of refrigerant
• A/C refrigerant pressure sensor
• Outside air temperature sensor
• HVAC control module
Step Action Yes No
1Was “Air Conditioning System Check” performed?Go to Step 2. Go to “Air Conditioning
System Check”.
2DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch to ON position and check DTC in
BCM.
Is DTC B1141 or B1142 (BCM) detected?Go to applicable DTC
diag. flow.Go to Step 3.
3DTC check
Check DTC in ECM.
Is DTC P0532 or P0533 detected?Go to applicable DTC
diag. flow.Go to Step 4.
4A/C refrigerant pressure and outside air temperature
data check
1) Start engine and select “DATA LIST” mode on scan tool.
2) Check “Refrigerant Pressure” and “Outside Air Temp”
displayed on scan tool.
Are values of A/C refrigerant pressure sensor and outside air
temperature within specified ranges indicated in “Scan Tool
Data”?Substitute a known-
good HVAC control
module and recheck.Check the amount of
refrigerant and system
for leaks.
12V
G20
G20-13YEL
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 24 23 22 25 26 27 28 29 30
1
2 3
[S]WHT/REDWHTG20-7
12V5V
[B]4 4
I7RW01722012-02
[B]: Back-up power supply circuit 1. HVAC control module 3. Information display
[S]: Serial communication circuit 2. BCM 4. Circuit fuse

Downloaded from www.Manualslib.com manuals search engine 9A-11 Wiring Systems:
Connector Layout Diagram
Connector Layout DiagramS6RW0D910A001
Refer to “Engine Compartment”.
Refer to “Instrument Panel”.
Refer to “Door, Roof”.
Refer to “Floor”.
Refer to “Rear”.
Engine CompartmentS6RW0D910A002
A: Battery cable / C: Engine harness (M15A engine RHD)
C: Engine harness
C124
C40
C102
C91
C192
C194
C42
C162
C141C196
C195
C93C94C101C39C92
C31
C311C312
C36C48
C37C123
C47C32C282
C283
C343
(TO E371)
C01
C34
C07
C06
C122
C46
C139
C44
C166
43
2
1
C
A
I6RW0C910901-01
No./Color Connective position No./Color Connective position
C01/GRY ECM C101/GRY IG COIL #1
C06/N (A/T) TCM C102/GRY IG COIL #2
C07/N (A/T) TCM C122/GRY EGR valve
C31/GRY CKP sensor C123/BLK EVAP canister purge valve
C32/BLK CMP sensor C124/BLU OCV
C34/GRY
(A/T)VSSC139/GRY
(A/T)Shift solenoid
C36/BLK MAP sensor C141/BLK A/C compressor
C37/GRY Knock sensor C162/N Oil pressure switch
C39/BLK ECT sensorC166/GRY
(A/T)Transaxle range sensor
C40/BLK A/F sensor C192/- Generator

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-58
A-1 Cranking System Circuit DiagramS6RW0D910E002
Starting motor
relay
W
"A-5"
ECM
E225
C1951C1961
Starting motor
M
BLK
1
BLK/GRY
C2821
Battery
E371
C3433
RED
Individual circuit
fuse box (No.1)
8
30A
33
10A
WHTWHT
J/B
E32510
42
3 1
RED/WHT
ST
ST SIG
YEL/GRNYEL/GRN
YG
"A-5"
ECM
GRN/WHT
G1472
YEL/GRN
YEL/GRN
G2734
+B1
LOCK
ACC
ON
STACC IG1 IG2STOUT
IN
+B2
2P
R
ND2L
Transaxle
range
sensor
C166
E371
C3433
A/T M/T
3
YEL/GRN
YEL
YEL
M15A engine, M16A engine
J20A engine A
9
2AB
6
8AB
B
I6RW0C910933-01

Downloaded from www.Manualslib.com manuals search engine 9A-59 Wiring Systems:
A-2 Charging System Circuit DiagramS6RW0D910E003
20E371
C343
20G334
E382
BLK/WHT
BLK/WHT
BLK/WHT
80A Main fuse box
C192
J/B
1C283
IG COIL4315A
20
GeneratorIC
regulator
1
E3255
C19424
WHT/BLU
WB
BCM
"A-8"
1
BLU/YEL
BY
3
BRN/WHT
BW
ECM
"A-5"
9
WHT/BLUBLK
Weld spliceTaiwan
M15A engine,
J20A engine
C312
I6RW0C910934-02

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-60
A-3 Ignition System Circuit Diagram (M15A engine, M16A engine)S6RW0D910E004
15A
20E371
C343
2
C1011
3
IG COIL
#1
C102
BLK
BLK/WHTGRN/YEL
BLK/WHT
J/B
ECM
GYGW
20IG COIL
BLK
BLK
IG COIL
#2
E3255
3
GRN/WHT
1
3
2
C015 6
Weld
splice
C312
BLK/WHT
BLK/WHT
I6RW0C910935-01