2006 SUZUKI SX4 speed

Downloaded from www.Manualslib.com manuals search engine 1A-10 Engine General Information and Diagnosis:
ECM Transmission Data
ECM Reception Data
BCM TCMCombination
Meter
DATA ECM Transmit
Brake pedal switch signal
Vehicle speed signal
Engine speed signal
Engine torque signal
Accelerator pedal position signal
4WD Control
ModuleKeyless Start
Control
Module
A/C refrigerant pressure
signal
A/C compressor clutch signal
Engine type signal
Immobilizer indicator light control
signal
MIL control signal
Engine coolant temperature signal
Fuel level signal
Fuel consumption signal
Throttle position signal
Driving cycle active
Warm up cycle active
Odometer signal
I6RW0D110003-02
DATA ECM Receive
ABS control
module
Transmission oil temperature signal
Transmission warning light signal Vehicle speed pulse signal A/T selector lever position signal
Transmission actual gear position signal
Wheel speed signal (front right)
Wheel speed signal (front left)
ABS indication signal
A/C switch ON signal
Electric load signalBCM
4WD mode status
Torque request signalTCM
MIL control signal4WD control
module
I6RW0D110013-02

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-11
Air Intake System DescriptionS6RW0D1101006
The main components of the air intake system are air cleaner (1), air cleaner outlet hose (2), electric throttle body (3)
(for the details, refer to “Description of Electric Throttle Body System”.), and intake manifold (4).
The air (by the amount corresponding to throttle valve (5) opening and engine speed) is filtered by the air cleaner,
distributed by the intake, and finally drawn into each combustion chamber. Electric throttle body is not equipped with
IAC valve for idle speed control. Idle speed control is done by the throttle actuator (6) which opens/closes the throttle
valve. (For the details, refer to “Description of Electric Throttle Body System”.)
Description of Electric Throttle Body System CalibrationS6RW0D1101007
ECM calculates controlled opening of the throttle valve on the basis of the completely closed throttle valve position of
the electric throttle body system. The completely closed position data is saved in memory of ECM. However, the
completely closed position of the throttle valve of the electric throttle body system (signal voltage from throttle position
sensor when throttle is completely closed) differs one from the other depending on individual differences of the throttle
valve and throttle position sensor. As such individual differences must be taken into account for controlling the throttle
valve, it is necessary to register the completely closed throttle valve position data in ECM. When such data is
registered in ECM, it is saved in RAM (memory) of ECM and used as the base data for controlling the throttle valve.
This data is cleared, when any of the works described in “Precautions of Electric Throttle Body System Calibration” is
performed.
Also, after replacement of the throttle body and/or APP sensor assembly, the completely closed position data in
memory of ECM must be cleared once and a new one must be registered, or ECM cannot judge the complete closure
position properly.
For the procedure to register such data, refer to “Electric Throttle Body System Calibration in Section 1C”. (After the
completely closed position data is cleared, ECM, for the first time only, opens and closes the throttle valve for about 5
seconds after the ignition switch is turned ON position, for registration of the completely closed throttle valve position.
If the engine is started during this registration process, such symptom as “longer cranking time” or “slow rise of
revolution speed immediately after start-up” may occur. However, turning OFF the ignition switch once and restarting
will set correct registration.)
Description of Electric Throttle Body SystemS6RW0D1101009
The Electric Throttle Body System consists of electric throttle body assembly, accelerator pedal position (APP) sensor
assembly, ECM and throttle actuator control relay.
Among them, assembly components are as follows.
• Electric throttle body assembly: throttle valve, throttle actuator, 2 throttle position sensors
• APP sensor assembly: Accelerator pedal, 2 accelerator position sensors
42
1
3
5
6
I5RW0A110006-02

Downloaded from www.Manualslib.com manuals search engine 1A-12 Engine General Information and Diagnosis:
Operation Description
ECM (5) detects opening (depressed extent of pedal) of the accelerator pedal based on signal voltage of the APP
sensor (1) and using that data and engine operation condition, it calculates the optimum throttle valve opening. On the
other hand, it detects the throttle valve opening based on the signal voltage of the throttle position sensor (3) included
in the throttle body (2) and compares it with the above calculated optimum throttle valve opening. When there is a
difference between them, ECM controls the duty ratio (100% – 0%) according to this difference to drive the throttle
actuator (motor) (4) included in the throttle body. When there is no difference, ECM controls the duty ratio to about
15% to maintain the throttle valve opening. In this way, the throttle valve (17) is opened and closed to achieve the
optimum throttle valve opening.
In this system, as the throttle position sensor and APP sensor have 2 sensors (main and sub) each, highly accurate
and highly reliable control and abnormality detection are assured. Also, when ECM detects an abnormality in the
system, it turns off the throttle actuator control relay (8) to stop controlling the throttle actuator. When the throttle
actuator control relay is turned off, the throttle valve is fixed at the opening of about 7° from its completely closed
position (default opening) by the force of the return spring and open spring included in the throttle body.
This throttle body is not equipped with IAC valve for idle speed control. Idle speed control is done by the throttle
actuator which opens/closes the throttle valve.
Electronic Control System Description
The electronic control system consists of 1) various
sensors which detect the state of engine and driving
conditions, 2) ECM which controls various devices
according to the signals from the sensors and 3) various
controlled devices.
Functionally, it is divided into the following sub systems:
• Fuel injection control system
• Ignition control system
• Electric throttle body control system
• Fuel pump control system
• Radiator cooling fan control system
• Evaporative emission control system
• EGR system (if equipped)
• Oxygen sensor heater control system• A/C control system (if equipped with A/C)
• Camshaft position control system
• Immobilizer control system
• Controller (computer) communication system
Especially, ECM (Engine Control Module), BCM (Body
electrical Control Module), combination meter, ABS /
control module, keyless start control module (if equipped
with keyless start control system), TCM (Transmission
Control Module) (for A/T model) and 4WD control
module (if equipped) intercommunicate by means of
CAN (Controller Area Network) communication.
4 12
1735
6
7 8
9
10
11
12
13
14
1516
18
I4RS0B110007-02
6. CPU 11. APP sensor (main) signal 15. Drive signal of throttle actuator
7. Drive circuit of throttle actuator 12. APP sensor (sub) signal 16. Power supply of throttle actuator
9. From “THR MOT” fuse 13. Throttle position sensor (main) signal 18. Control signal of throttle actuator control relay
10. From main relay 14. Throttle position sensor (sub) signal

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-13
Engine and Emission Control System Flow Diagram
Intake manifoldExhaust
manifold
Exhaust gas Air
Fuel Vapor
War m up
catalystExhaust
pipe
EVAP canister
purge valve
Fuel injector
ECT
sensor
ECM
Heater
control
Heater
control
(if equipped)
Barometric pressure sensor HO2S-1HO2S-2
(if equipped) Engine
CMP
sensorCKP
sensor
Knock
sensorIgnition
coil with
igniter
APP sensor
A/C compressor
clutch
Generator
Immobilizer
coil antenna
P/S control
module
Brake light
switch
Air cleaner
IAT
sensorMAF
sensor
A/C refrigerant
pressure sensor
TP
sensor Throttle body
assembly
Throttle
actuator
A/C condenser
fan
DLC
Radiator
fan
Combination meter
· MIL
· Coolant Temp.
· Immobilizer indicator light
· Tachometer
· Speedometer
· Fuel level
· Odometer4WD
control module
Wheel speed
sensor (VSS)
(M/T)
· Electric load
· A/C switch ON
BCM
Keyless start
control module
ABS control module
Blower speed
selector
MAP sensor
(if equipped)EGR valve
(if equipped)
Check
valve
EVAP
canister
Fuel level sensorFuel tankFuel
pump
CMP actuator
oil control valve
(VVT model)
TCM
Output shaft speed
(VSS) sensor (A/T)
Three way
catalyst (if
equipped)
I6RW0D110004-03

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-15
Terminal Arrangement of ECM Coupler (Viewed from Harness Side)
7. HO2S-2 (if equipped) 31. Fuel injector No.1 55. Starting motor control relay
8. Knock sensor 32. Fuel injector No.2 56. Transmission range switch (A/T
model)
9. MAF and IAT sensor 33. Fuel injector No.3 57. Starting motor
10. MAP sensor (if equipped) 34. Fuel injector No.4 58. “DOME” fuse
11. ECT sensor 35. EVAP canister purge valve 59. “IG COIL” fuse
12. A/C refrigerant pressure sensor 36. EGR valve (if equipped) 60. “IG2 SIG” fuse
13. A/C evaporator outlet air temp. sensor (Manual A/C
model)37. Oil control valve (Camshaft position control) (VVT
model)61. “FI” fuse
14. Blower motor relay 38. Fuel pump relay 62. “ST SIG” fuse
15. Blower motor 39. Fuel pump 63. “ST” fuse
16. Blower speed selector (Auto A/C model) 40. Radiator cooling fan motor relay 64. Ignition switch
17. Blower speed selector (Manual A/C model) 41. Radiator cooling fan motor 65. “IGN” fuse
18. A/C switch 42. A/C compressor relay 66. “RDTR” fuse
19. To BCM 43. A/C compressor 67. Main fuse box
20. Generator 44. A/C condenser cooling fan motor relay 68. Battery
21. ABS control module 45. A/C condenser cooling fan motor 69. Shield ground
22. TCM 46. A/C fuse 70. Barometric pressure sensor
23. To other control module and DLC connected CAN 47. Ignition coil assembly (for No.1 and No.4 spark plugs) 71. Engine ground
24. Fuel level sensor 48. Ignition coil assembly (for No.2 and No.3 spark plugs) 72. Body ground
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
I6RW0D110014-01

Downloaded from www.Manualslib.com manuals search engine 1A-18 Engine General Information and Diagnosis:
Engine and Emission Control Input / Output TableS6RW0D1101010
INPUTOUTPUT
ELECTRIC CONTROL DEVICE
BAROMETRIC PRESSURE SENSOR
BRAKE LIGHT SWITCH
START SWITCH
IGNITION SWITCH
A/C REFRIGERANT PRESSURE SENSOR (if equipped with A/C)
BLOWER SWITCH
A/C SWITCH (if equipped with A/C)
A/C EVAP OUTLET AIR TEMP. SENSOR (if equipped with A/C)
WHEEL SPEED SENSOR
HEATED OXYGEN SENSOR-1
HEATED OXYGEN SENSOR-2 (if equipped)
IAT SENSOR OF MAF AND IAT SENSOR MAF SENSOR OF MAF AND IAT SENSOR
ECT SENSOR
TP SENSOR
THROTTLE ACTUATOR
A/C CONDENSER FAN RELAY FUEL PUMP RELAY
FUEL INJECT
THROTTLE ACTUATOR CONTROL RELAYOR
HO2S HEATER
IGNITION COIL WITH IGNITER
EGR VALVE (if equipped)
EVAP CANISTER PURGE VALVEA/C COMPRESSOR RELAY (if equipped with A/C)RADIATOR FAN RELAY
MIL
MAIN RELAY
OIL CONTROL VALVE (for engine with VVT system) SIGNAL FROM SENSOR, SWITCH AND CONTROL MODULE
ABS CONTROL MODULE
KNOCK SENSOR
MAP SENSOR (if equipped)
CMP SENSOR
CKP SENSOR
IMMOBILIZER CONTROL MODULE (in ECM)
ELECTRIC LOAD (head light, rear defogger
TCM (for A/T model
P/S CONTROL MODULE))
APP SENSOR
I6RW0D110015-03

Downloaded from www.Manualslib.com manuals search engine 1A-20 Engine General Information and Diagnosis:
1. Air cleaner 17. Radiator cooling fan 33. A/C switch (A/C model)
2. EVAP canister purge valve 18. A/C condenser cooling fan 34. A/C evaporator outlet air temp. sensor (manual A/C
model)
3. MAF and IAT sensor 19. Combination meter 35. Immobilizer coil antenna
4. TP sensor 20. BCM 36. Main relay
5. MAP sensor (if equipped) 21. Ignition switch37. Wheel speed sensor (VSS) (for M/T model)
6. EGR valve (if equipped) 22. Starter magnetic switch 38. Oil control valve
7. EVAP canister 23. Heated oxygen sensor (HO2S)-2 (if
equipped)39. ABS control module
8. Tank pressure control valve (built-in fuel pump) 24. DLC 40. Starting motor control relay
9. Fuel pump (with pressure regulator) 25. Electric load 41. A/C refrigerant pressure sensor (A/C model)
10. Ignition coil assembly 26. Fuel level sensor 42. APP sensor
11. Fuel injector 27. Brake light 43. Throttle actuator control relay
12. Heated oxygen sensor (HO2S)-1 28. Brake light switch 44. Throttle actuator
13. Knock sensor 29. ECM 45. TCM (for A/T model)
14. ECT sensor 30. Barometric pressure sensor 46. Output shaft speed sensor (VSS) (for A/T model)
15. CMP sensor 31. Battery
16. CKP sensor 32. A/C compressor relay (A/C model)

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-21
Component Location
Electronic Control System Components LocationS6RW0D1103001
NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed
at the opposite side.

H*E*
10
D
G* C
6A
B*
e
3*
12*
a8 13
b
1
5-1
d
2
11
g
4
7
9
i
j
Fh k f
n
c J
5
K*
14
I6RW0D110016-03
Information sensors Control devices Others
1. MAF and IAT sensor a: Fuel injector A: ECM
2. Electric throttle body assembly
(built-in throttle position sensor and throttle
actuator)b: EVAP canister purge valve B: Combination meter
3. Brake light switch c: Fuel pump relay C: EVAP canister
4. ECT sensor d: EGR valve (if equipped) D: A/C evaporator outlet air temp. sensor
(if equipped with A/C)
5. Heated oxygen sensor-1 e: Malfunction indicator lamp E: Data link connector
5-1. Heated oxygen sensor-2 (if equipped) f: Radiator cooling fan relay F: A/C compressor relay (if equipped with A/C)
6. Battery g: Ignition coil assembly (with ignitor) G: BCM (included in junction block assembly)
7. CMP sensor (for engine with VVT system) h: Main relay H: Immobilizer coil antenna
8. MAP sensor (if equipped) i: Oil control valve (for engine with VVT system) J: A/C refrigerant pressure sensor
(if equipped with A/C)
9. CKP sensor j: A/C condenser cooling fan relay K: TCM (for A/T model)
10. Fuel level sensor k: Starting motor control relay
11. Knock sensor m: Immobilizer indicator lamp
12. APP sensor n: Throttle actuator control relay
13. Front wheel speed sensor (RH, LH) (VSS)
14. CMP sensor (for engine without VVT system)