2006 SUZUKI SX4 diagram

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-211
Radiator Cooling Fan Control System CheckS6RW0D1104080
Wiring Diagram
Troubleshooting
WARNING!
Keep hands, tools, and clothing away from radiator cooling fan to help prevent personal injury. This
fan is electric and can come on whether or not the engine is running. The fan can start automatically in
response to the ECT sensor with the ignition switch at the “ON” position.

NOTE
• Before performed trouble shooting, be sure to read the “Precautions of ECM Circuit Inspection”.
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits”.

E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
BLK/REDBLK/RED
BLK/YELBLK/YEL
BLK/YEL
BRN/WHT
12V
5V5V
26
E01-1
E01-60
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
BLK/RED
LT GRN
BLK/REDE01-16
E01-46
BLU/REDBLKGRY
LT GRN
ORN
C01-24
C01-55 3
4
5
E01-31 BLK
8 71
I6RW0D110058-01
1. Individual circuit fuse box No.1 3. Radiator cooling fan relay 5. ECT sensor 7. “FI” fuse
2. Main relay 4. Radiator cooling fan motor 6. ECM 8. “RDTR” fuse

Downloaded from www.Manualslib.com manuals search engine Engine Cooling System: 1F-2
Schematic and Routing Diagram
Coolant CirculationS6RW0D1602001
While the engine is warmed up (thermostat closed), coolant circulates as follows.
When coolant is warmed up to normal temperature and the thermostat opens, coolant passes through the radiator
core to be cooled as follows.
7
5
6
4
3
2
81
I5RW0C160001-02
1. Radiator inlet hose 3. Thermostat 5. Throttle body 7. Heater core
2. Radiator outlet hose 4. Water pump 6. Engine 8. Radiator
7
5
6
4
3
2
81
I5RW0C160002-02
1. Radiator inlet hose 3. Thermostat 5. Throttle body 7. Heater core
2. Radiator outlet hose 4. Water pump 6. Engine 8. Radiator

Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-2
General Description
Fuel System DescriptionS6RW0D1701001
CAUTION!
This engine requires the unleaded fuel only.
The leaded and/or low lead fuel can result in
engine damage and reduce the effectiveness
of the emission control system.

The main components of the fuel system are fuel tank,
fuel pump assembly (with fuel filter, fuel level gauge, fuel
pressure regulator), fuel feed line and fuel vapor line.
For the details of fuel flow, refer to “Fuel Delivery System
Diagram”.
Fuel Delivery System DescriptionS6RW0D1701002
The fuel delivery system consists of the fuel tank, fuel
pump assembly (with built-in fuel filter and fuel pressure
regulator), delivery pipe, injectors and fuel feed line.
The fuel in the fuel tank is pumped up by the fuel pump,
sent into delivery pipe and injected by the injectors.
As the fuel pump assembly is equipped with built-in fuel
filter and fuel pressure regulator, the fuel is filtered and
its pressure is regulated before being sent to the feed
pipe.
The excess fuel at fuel pressure regulation process is
returned back into the fuel tank.
Also, fuel vapor generated in fuel tank is led through the
fuel vapor line into the EVAP canister.
For system diagram, refer to “Fuel Delivery System
Diagram”.
Fuel Pump DescriptionS6RW0D1701003
The fuel pump (1) is an in-tank type electric pump.
Incorporated in the pump assembly are;
a fuel filter (2), a fuel pressure regulator (3) and a fuel
level sensor (gauge) (4).
2
41
3
I7RW01170001-01

Downloaded from www.Manualslib.com manuals search engine 1G-3 Fuel System:
Schematic and Routing Diagram
Fuel Delivery System DiagramS6RW0D1702001
Diagnostic Information and Procedures
Fuel Pressure InspectionS6RW0D1704001
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.

1) Relieve fuel pressure in fuel feed line referring to
“Fuel Pressure Relief Procedure”.
2) Disconnect fuel feed hose from fuel delivery pipe.
3) Connect special tools and hose between fuel feed
hose (1) and fuel delivery pipe as shown in figure,
and clamp hoses securely in order to ensure that no
leaks occur during checking.
Special tool
(A): 09912–58442
(B): 09912–58432
(C): 09912–58490
73 6
1 4
5
8
9
2
I7RW01170002-02
1. Fuel tank 4. Delivery pipe 7. Fuel filter
2. Fuel pump assembly 5. Fuel injector 8. Fuel level sensor (gauge)
3. Fuel pressure regulator 6. Fuel feed line 9. Fuel pump
(C) (B)
(A)
1I5RW0A170002-02

Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-2
Schematic and Routing Diagram
Ignition System Wiring Circuit DiagramS6RW0D1802001
E01-60
E01-29
12V5V
5V
E01-1
E01-16
BLK/WHT
BLK/RED
BLK/RED
BLK/RED
80A
BLK/YELBLK/YEL
BLK/YEL
GRN
BLK
WHT
BRN/WHT
BLK/ORN
BLK
BLK
BLK
C01-20
BLK/RED
PNK
BLK/ORN
5V
C01-21
BLK/WHT
7
34
1
125
6 2
11 89 10
GRN/YEL
GRN/WHT
C01-6
C01-55V
5V
RED/YEL
C01-58
C01-15
C01-30
E01-31
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
13
14
15
16
17
BLK
I6RW0D180001-01
1. Ignition switch 7. No.1 spark plug 13. Relay box
2. Main relay 8. No.2 spark plug 14. “IG ACC” fuse
3. Ignition coil assembly for No.1 and No.4 spark plugs 9. No.3 spark plug 15. “FI” fuse
4. Ignition coil assembly for No.2 and No.3 spark plugs 10. No.4 spark plug 16. Junction block assembly
5. CMP sensor 11. Sensed information 17. “IG COIL” fuse
6. CKP sensor 12. Battery fuse box

Downloaded from www.Manualslib.com manuals search engine 1I-1 Starting System:
Engine
Starting System
Schematic and Routing Diagram
Cranking System Circuit DiagramS6RW0D1902001
Diagnostic Information and Procedures
Cranking System Symptom DiagnosisS6RW0D1904001
Possible symptoms due to starting system trouble would be as follows:
• Starting motor does not run (or runs slowly)
• Starting motor runs but fails to crank engine
• Abnormal noise is heard
Proper diagnosis must be made to determine exactly where the cause of each trouble lies in battery, wiring harness,
(including starting motor switch), starting motor or engine.
Do not remove motor just because starting motor does not run. Check the following items and narrow down scope of
possible causes.
1) Condition of trouble
2) Tightness of battery terminals (including ground cable connection on engine side) and starting motor terminals
3) Discharge of battery
4) Mounting of starting motor
I4RS0A190001-01
1. Pinion drive lever 6. Magnetic switch contacts 11. Ignition & Starter switch
2. Pinion & Over-running clutch 7. Pull-in coil 12. Battery
3. Magnetic switch 8. Starting motor 13. To ECM
4. Hold-in coil 9. Starting motor control relay
5. Plunger 10. A/T: Transmission range sensor (shift switch)

Downloaded from www.Manualslib.com manuals search engine Table of Contents 3- i
3
Section 3
CONTENTS
Driveline / Axle
Precautions ................................................. 3-1
Precautions............................................................. 3-1
Precautions on Driveline / Axle ............................. 3-1
Drive Shaft / Axle ..................................... 3A-1
Front ......................................................................... 3A-1
General Description ............................................. 3A-1
Front Drive Shaft Construction ............................ 3A-1
Component Location ........................................... 3A-1
Front Drive Shaft Assembly Components
Location ............................................................ 3A-1
Diagnostic Information and Procedures ............ 3A-2
Front Drive Shaft Symptom Diagnosis ................ 3A-2
Repair Instructions .............................................. 3A-2
Front Drive Shaft Components ........................... 3A-2
Front Drive Shaft Assembly On-Vehicle
Inspection.......................................................... 3A-3
Front Drive Shaft Assembly Removal and
Installation ......................................................... 3A-3
Front Drive Shaft Disassembly and
Reassembly ...................................................... 3A-4
Center Shaft and Center Bearing Support
Disassembly and Reassembly (If Equipped) .. 3A-12
Specifications..................................................... 3A-13
Tightening Torque Specifications ...................... 3A-13
Special Tools and Equipment ........................... 3A-14
Recommended Service Material ....................... 3A-14
Special Tool ...................................................... 3A-14
Rear ........................................................................ 3A-15
General Description ........................................... 3A-15
Rear Drive Shaft Construction .......................... 3A-15
Repair Instructions ............................................ 3A-15
Rear Drive Shaft Components .......................... 3A-15
Rear Drive Shaft Assembly Removal and
Installation ....................................................... 3A-16
Rear Drive Shaft Disassembly and
Reassembly .................................................... 3A-16
Specifications..................................................... 3A-18
Tightening Torque Specifications ...................... 3A-18
Special Tools and Equipment ........................... 3A-18
Recommended Service Material ....................... 3A-18
Special Tool ...................................................... 3A-18
Differential ................................................ 3B-1
Precautions...........................................................3B-1
Precaution for Rear Differential Oil Leakage....... 3B-1
Precautions in Diagnosing Trouble ..................... 3B-1
General Description .............................................3B-2
Rear Differential Description ............................... 3B-2
Coupling Description ........................................... 3B-2
4WD Control System Components ..................... 3B-3
4WD Control System Description........................ 3B-4
Function of 4WD Control System Component .... 3B-4
4WD Control System Wiring Circuit Diagram...... 3B-5
Terminal Arrangement of 4WD Control
Module .............................................................. 3B-5
Input / Output Signal Table of 4WD Control
Module .............................................................. 3B-6
On-Board Diagnostic System Description ........... 3B-6
CAN Communication System Description........... 3B-7
Diagnostic Information and Procedures ............3B-8
4WD Control System Check ............................... 3B-8
4WD Position Indicator Operation Check.......... 3B-10
4WD Control System Operation Inspection ...... 3B-10
Visual Inspection ............................................... 3B-11
DTC Check........................................................ 3B-11
DTC Clearance ................................................. 3B-11
DTC Table ......................................................... 3B-12
Fail-Safe Table .................................................. 3B-12
Scan Tool Data ................................................. 3B-13
Rear Differential Symptom Diagnosis ............... 3B-14
4WD Control Symptom Diagnosis..................... 3B-14
4WD Position Indicator Does Not Come ON at
Ignition Switch ON but Engine Stops .............. 3B-15
4WD Position Indicator Remains ON Steady
at Ignition Switch ON....................................... 3B-16
DTC C1240: 4WD Control Module Power
Supply Circuit Malfunction............................... 3B-17
DTC C1243: Internal Circuit Malfunction of
4WD Control Module ....................................... 3B-18
DTC C1250: Coupling Air Temperature
Sensor Circuit Open ........................................ 3B-19
DTC C1251: Coupling Air Temperature
Sensor Circuit Short ........................................ 3B-21
DTC C1252: Coupling Assembly Circuit Open .. 3B-22
DTC C1253: Coupling Assembly Circuit Short .. 3B-24
DTC C1254: 2WD/4WD Switch Malfunction ..... 3B-25
DTC U0073: Control Module Communication
Bus Off ............................................................ 3B-27

Downloaded from www.Manualslib.com manuals search engine 3B-5 Differential:
4WD Control System Wiring Circuit DiagramS6RW0D3201006
Terminal Arrangement of 4WD Control ModuleS6RW0D3201007
5V
5V
12V
G26-3
YEL
GRY
G26-2
G26-22G26-23REDWHT
G26-13
G26-14
G26-12
G26-11
G26-10BLK
WHT/RED
RED/BLK
GRY/YEL
RED/WHT
12V
L102-1
L102-4
1
37
9
10
12
13
14
12V
G26-21BLU
G26-25
G26-24ORN
BRN
5V
28
11
WHT
WHT
WHTWHTWHTWHT
WHT
RED
RED
RED
REDRED
RED
RED
46
5
L174-4BLK/ORNL174-5L174-1
I7RW01320001-01
1. Coupling assembly 6. ECM 11. Data link connector (DLC)
2. Coupling air temperature sensor 7. 4WD control module 12. “IG COIL” fuse
3. Combination meter 8. 2WD/4WD switch 13. “4WD” fuse
4. BCM 9. “4WD” switch 14. Main fuse box
5. ABS / ESP® control module 10. “4WD lock” switch
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24 25 26
[A]
I4JA01332038-01
[A]: Connector “G26” viewed from harness side
Te r m i n a l C i r c u i t Te r m i n a l C i r c u i t
G26-2 Coupling assembly (power) G26-14 “4WD lock” switch
G26-3 Coupling assembly (ground) G26-21 Data link connector (DLC)
G26-10 Ground G26-22 CAN communication line (high)
G26-11 Power source for internal memory G26-23 CAN communication line (low)
G26-12 Power source G26-24 Coupling air temperature sensor (ground)
G26-13 “4WD” switch G26-25 Coupling air temperature sensor (power)