2006 SUZUKI SX4 Ignition switch

Downloaded from www.Manualslib.com manuals search engine Precautions: 00-8
Precautions for Installing Mobile
Communication Equipment
S6RW0D0000005
When installing mobile communication equipment such
as CB (Citizens-Band)-radio or cellular-telephone, be
sure to observe the following precautions.
Failure to follow cautions may adversely affect electronic
control system.
• Keep the antenna as far away as possible from the
vehicle’s electronic control unit.
• Keep the antenna feeder more than 20 cm (7.9 in.)
away from electronic control unit and its wire
harnesses.
• Do not run the antenna feeder parallel with other wire
harnesses.
• Confirm that the antenna and feeder are correctly
adjusted.
Precaution for CAN Communication SystemS6RW0D0000006
• The loose (1) in the wire harnesses twist of the CAN
lines except around the connector (3) should be within
100 mm (3.9 in.). Refer to the wiring diagram for the
CAN lines discrimination. Excessively-loosed lines
may be influenced by the electric noise.
• Do not connect terminals of the CAN line using a
bypass wire (1). Otherwise, the CAN line may be
influenced by the electric noise.
Precautions for Electrical Circuit ServiceS6RW0D0000007
• When replacing a fuse, make sure to use a fuse of the
specified capacity. Use of a fuse with a larger capacity
will cause a damage to the electrical parts and a fire.
• When disconnecting and connecting coupler, make
sure to turn ignition switch OFF, or electronic parts
may get damaged.
• When disconnecting connectors, never pull the wiring
harness. Unlock the connector lock first and then pull
them apart by holding connectors themselves.
33
2 2
1
I4JA01000002-01
1
I4JA01000003-01
I2RH01010038-01
I2RH01010039-01
I2RH01010040-01

Downloaded from www.Manualslib.com manuals search engine Precautions: 00-10
• When connecting meter probe (2) from terminal side
of coupler (1) because it can’t be connected from
harness side, use extra care not to bend male
terminal of coupler of force its female terminal open
for connection.
In case of such coupler as shown connect probe as
shown to avoid opening female terminal.
Never connect probe where male terminal is
supposed to fit.
• When checking connection of terminals, check its
male half for bend and female half for excessive
opening and both for locking (looseness), corrosion,
dust, etc.
• Before measuring voltage at each terminal, check to
make sure that battery voltage is 11 V or higher. Such
terminal voltage check at low battery voltage will lead
to erroneous diagnosis.Air Bag WarningS6RW0D0000008
WARNING!
For vehicles equipped with Supplemental
Restraint (Air Bag) System:
• Service on and around the air bag system
components or wiring must be performed
only by an authorized SUZUKI dealer. Refer
to “Air Bag System Components, Wiring
and Connectors Location in Section 8B” in
order to confirm whether you are
performing service on or near the air bag
system components or wiring. Please
observe all WARNINGS in Air Bag System
section and “Precautions on Service and
Diagnosis of Air Bag System in Section
8B” before performing service on or
around the air bag system components or
wiring. Failure to follow WARNINGS could
result in unintentional activation of the
system or could render the system
inoperative. Either of these two conditions
may result in severe injury.
• Technical service work must be started at
least 90 seconds after the ignition switch is
turned to the LOCK position and the
negative cable is disconnected from the
battery. Otherwise, the system may be
activated by reserve energy in the Sensing
and Diagnostic Module (SDM).

Air Bag System Service WarningS6RW0D0000009
WARNING!
• Service on or around the air bag system
components or wiring must be performed
only by an authorized SUZUKI dealer.
Please observe all WARNINGS in Air Bag
System section and “Precautions on
Service and Diagnosis of Air Bag System
in Section 8B” before performing service
on or around the air bag system
components or wiring. Failure to follow
WARNINGS could result in unintended
activation of the system or could render
the system inoperative. Either of these two
conditions may result in severe injury.
• The procedures in the air bag system
section must be followed in the order
listed to disable the air bag system
temporarily and prevent false DTCs from
setting. Failure to follow procedures could
result in possible activation of the air bag
system, personal injury or otherwise
unneeded air bag system repairs.

I2RH01010047-01
I2RH01010048-01

Downloaded from www.Manualslib.com manuals search engine 0A-1 General Information:
General Information
General Information
General Description
AbbreviationsS6RW0D0101001
A:
ABDC: After Bottom Dead Center
ABS: Anti-lock Brake System
AC: Alternating Current
A/C: Air Conditioning
A-ELR: Automatic-Emergency Locking Retractor
A/F: Air Fuel Mixture Ratio
ALR: Automatic Locking Retractor
API: American Petroleum Institute
APP sensor: Accelerator Pedal Position Sensor
A/T: Automatic Transmission, Automatic Transaxle
AT D C : After Top Dead Center
ATF: Automatic Transmission Fluid, Automatic
Transaxle Fluid
B:
B+: Battery Positive Voltage
BBDC: Before Bottom Dead Center
BCM: Body Electrical Control Module
BTDC: Before Top Dead Center
C:
CAN: Controller Area Network
CKT: Circuit
CKP Sensor: Crankshaft Position Sensor
CMP Sensor: Camshaft Position Sensor
CO: Carbon Monoxide
CPP Switch: Clutch Pedal Position Switch (Clutch
Switch, Clutch Start Switch)
CPU: Central Processing Unit
CRS: Child Restraint System
D:
DC: Direct Current
DLC: Data Link Connector (Assembly Line Diag. Link,
ALDL, Serial Data Link, SDL)
DOHC: Double Over Head Camshaft
DOJ: Double Offset Joint
DRL: Daytime Running Light
DTC: Diagnostic Trouble Code (Diagnostic Code)
E:
EBCM: Electronic Brake Control Module, ABS Control
Module
EBD: Electronic Brake Force Distribution
ECM: Engine Control Module
ECT Sensor: Engine Coolant Temperature Sensor
(Water Temp. Sensor, WTS)
EFE Heater: Early Fuel Evaporation Heater (Positive
Temperature Coefficient, PTC Heater)
EGR: Exhaust Gas Recirculation
EGRT Sensor: EGR Temperature Sensor (Recirculated
Exhaust Gas Temp. Sensor, REGTS)
EPS: Electronic Power Steering
EVAP: Evaporative Emission
EVAP Canister: Evaporative Emission Canister
(Charcoal Canister)F:
4WD: 4 Wheel Drive
G:
GEN: Generator
GND: Ground
GPS: Global Positioning System
H:
HAVC: Heating, Ventilating and Air Conditioning
HC: Hydrocarbons
HO2S: Heated Oxygen Sensor
I:
IAC Valve: Idle Air Control Valve (Idle Speed Control
Solenoid Valve, ISC Solenoid Valve)
IAT Sensor: Intake Air Temperature Sensor (Air
temperature Sensor, ATS)
ICM: Immobilizer Control Module
IG: Ignition
ISC Actuator: Idle Speed Control Actuator
L:
LH: Left Hand
LHD: Left Hand Drive vehicle
LSPV: Load Sensing Proportioning Valve
M:
MAF Sensor: Mass Air Flow Sensor (Air Flow Sensor,
AFS, Air Flow Meter, AFM)
MAP Sensor: Manifold Absolute Pressure Sensor
(Pressure Sensor, PS)
Max: Maximum
MFI: Multiport Fuel Injection (Multipoint Fuel Injection)
Min: Minimum
MIL: Malfunction Indicator Lamp (“SERVICE ENGINE
SOON” Light)
M/T: Manual Transmission, Manual Transaxle
N:
NOx: Nitrogen Oxides
O:
OBD: On-Board Diagnostic System (Self-Diagnosis
Function)
O/D: Overdrive
OHC: Over Head Camshaft
O2S: Oxygen Sensor
P:
PCM: Powertrain Control Module
PCV: Positive Crankcase Ventilation
PNP: Park / Neutral Position
P/S: Power Steering
PSP Switch: Power Steering Pressure Switch (P/S
Pressure Switch)
R:
RH: Right Hand
RHD: Right Hand Drive vehicle

Downloaded from www.Manualslib.com manuals search engine Table of Contents 1- i
1
Section 1
CONTENTS
Engine
Precautions ................................................. 1-1
Precautions............................................................. 1-1
Precautions for Engine .......................................... 1-1
Engine General Information and
Diagnosis ................................................. 1A-1
Precautions........................................................... 1A-1
Precautions on Engine Service ........................... 1A-1
Precaution on On-Board Diagnostic (OBD)
System .............................................................. 1A-1
Precautions in Diagnosing Trouble ..................... 1A-1
Precautions for DTC Troubleshooting ................. 1A-2
Precautions of ECM Circuit Inspection................ 1A-2
Precautions of Electric Throttle Body System
Calibration ......................................................... 1A-2
Precaution on CAN Troubleshooting .................. 1A-3
General Description ............................................. 1A-5
Statement on Cleanliness and Care ................... 1A-5
Engine Diagnosis General Description ............... 1A-5
On-Board Diagnostic System Description ........... 1A-5
Data Link Connector (DLC) ................................. 1A-8
Engine and Emission Control System
Description ........................................................ 1A-8
CAN Communication System Description........... 1A-9
Air Intake System Description ........................... 1A-11
Description of Electric Throttle Body System
Calibration ....................................................... 1A-11
Description of Electric Throttle Body System .... 1A-11
Engine and Emission Control Input / Output
Table ............................................................... 1A-18
Schematic and Routing Diagram ...................... 1A-19
Engine and Emission Control System
Diagram .......................................................... 1A-19
Component Location ......................................... 1A-21
Electronic Control System Components
Location .......................................................... 1A-21
Diagnostic Information and Procedures .......... 1A-22
Engine and Emission Control System Check.... 1A-22
Malfunction Indicator Lamp (MIL) Check .......... 1A-25
DTC Check ....................................................... 1A-25
DTC Clearance ................................................. 1A-26
Troubleshooting for Communication Error
with Scan Tool Using CAN.............................. 1A-26
DTC Table ......................................................... 1A-32For Vehicle Equipped with A/T .......................... 1A-36
Fail-Safe Table .................................................. 1A-36
Scan Tool Data ................................................. 1A-38
Visual Inspection ............................................... 1A-43
Engine Basic Inspection .................................... 1A-43
Engine Symptom Diagnosis .............................. 1A-45
Malfunction Indicator Lamp Does Not Come
ON with Ignition Switch ON and Engine Stop
(but Engine Can Be Started) ........................... 1A-52
Malfunction Indicator Lamp Remains ON after
Engine Starts................................................... 1A-54
DTC P0010: Camshaft Position Actuator
Circuit (for engine with VVT system) ............... 1A-55
DTC P0011 / P0012: Camshaft Position -
Timing Over-Advanced or System
Performance / Retarded (for engine with
VVT system).................................................... 1A-57
DTC P0031 / P0032: HO2S Heater Control
Circuit Low / High (Sensor-1) .......................... 1A-59
DTC P0037 / P0038: HO2S Heater Control
Circuit Low / High (Sensor-2) .......................... 1A-61
DTC P0101: Mass Air Flow Circuit Range /
Performance.................................................... 1A-63
DTC P0102: Mass Air Flow Circuit Low Input ... 1A-66
DTC P0103: Mass Air Flow Circuit High Input .. 1A-67
DTC P0106: Manifold Absolute Pressure
Range / Performance ...................................... 1A-69
DTC P0107: Manifold Absolute Pressure
Circuit Low Input ............................................. 1A-70
DTC P0108: Manifold Absolute Pressure
Circuit High Input............................................. 1A-72
DTC P0111: Intake Air Temperature Circuit
Range / Performance ...................................... 1A-74
DTC P0112: Intake Air Temperature Sensor
Circuit Low ...................................................... 1A-76
DTC P0113: Intake Air Temperature Sensor
Circuit High...................................................... 1A-78
DTC P0116: Engine Coolant Temperature
Circuit Range / Performance ........................... 1A-80
DTC P0117: Engine Coolant Temperature
Circuit Low ...................................................... 1A-83
DTC P0118: Engine Coolant Temperature
Circuit High...................................................... 1A-85
DTC P0122: Throttle Position Sensor (Main)
Circuit Low ...................................................... 1A-87

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-5
General Description
Statement on Cleanliness and CareS6RW0D1101001
An automobile engine is a combination of many
machined, honed, polished and lapped surfaces with
tolerances that are measured in the thousands of an
millimeter (ten thousands of an inch).
Accordingly, when any internal engine parts are
serviced, care and cleanliness are important.
It should be understood that proper cleaning and
protection of machined surfaces and friction areas is part
of the repair procedure. This is considered standard
shop practice even if not specifically stated.
• A liberal coating of engine oil should be applied to
friction areas during assembly to protect and lubricate
the surfaces on initial operation.
• Whenever valve train components, pistons, piston
rings, connecting rods, rod bearings, and crankshaft
journal bearings are removed for service, they should
be retained in order.
At the time of installation, they should be installed in
the same locations and with the same mating
surfaces as when removed.
• Battery cables should be disconnected before any
major work is performed on the engine.
Failure to disconnect cables may result in damage to
wire harness or other electrical parts.
• The four cylinders of the engine are identified by
numbers; No.1 (1), No.2 (2), No.3 (3) and No.4 (4)
counted from crankshaft pulley side to flywheel side.
Engine Diagnosis General DescriptionS6RW0D1101002
NOTE
There are two types of OBD system
depending on the vehicle specification.
For identification, refer to “Precaution on On-
Board Diagnostic (OBD) System”.

This vehicle is equipped with an engine and emission
control system which are under control of ECM.
The engine and emission control system in this vehicle
are controlled by ECM. ECM has an On-Board
Diagnostic system which detects a malfunction in this
system and abnormality of those parts that influence the
engine exhaust emission. When diagnosing engine
troubles, be sure to have full understanding of the outline
of “On-Board Diagnostic System Description” and each
item in “Precautions in Diagnosing Trouble” and execute
diagnosis according to “Engine and Emission Control
System Check”.
There is a close relationship between the engine
mechanical, engine cooling system, ignition system,
exhaust system, etc. and the engine and emission
control system in their structure and operation. In case of
an engine trouble, even when the malfunction indicator
lamp (MIL) doesn’t turn ON, it should be diagnosed
according to “Engine and Emission Control System
Check”.
On-Board Diagnostic System DescriptionS6RW0D1101003
NOTE
There are two types of OBD system
depending on the vehicle specification.
For identification, refer to “Precaution on On-
Board Diagnostic (OBD) System”.

Euro OBD model
ECM in this vehicle has the following functions.
• When the ignition switch is turned ON with the engine
at a stop, malfunction indicator lamp (MIL) (1) turns
ON to check the circuit of the malfunction indicator
lamp (1).
• When ECM detects a malfunction which gives an
adverse effect to vehicle emission while the engine is
running, it makes the malfunction indicator lamp (1) in
the meter cluster of the instrument panel turn ON or
flash (flashing only when detecting a misfire which
can cause damage to the catalyst) and stores the
malfunction area in its memory.
(If it detects that continuously 3 driving cycles are
normal after detecting a malfunction, however, it
makes MIL (1) turn OFF although DTC stored in its
memory will remain.)
1
234
I3RM0A110001-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-7
Priority of freeze frame data:
ECM has 4 frames where the freeze frame data can be stored. The first frame stores the freeze frame data of the
malfunction which was detected first. However, the freeze frame data stored in this frame is updated according to the
priority described. (If malfunction as described in the upper square “1” is detected while the freeze frame data in the
lower square “2” has been stored, the freeze frame data “2” will be updated by the freeze frame data “1”.)
In the 2nd through the 4th frames, the freeze frame data of each malfunction is stored in the order as each malfunction
is detected. These data are not updated.
Shown in the table are examples of how freeze frame data are stored when two or more malfunctions are detected.
Freeze frame data clearance:
The freeze frame data is cleared at the same time as clearance of DTC.
Non-Euro-OBD Model
ECM diagnosis troubles which may occur in the area
including the following parts when the ignition switch is
ON and the engine is running, and indicates the result by
turning on malfunction indicator lamp (MIL) (1).
• Heated oxygen sensor-1
• Heated oxygen sensor-2
• ECT sensor
•TP sensor
• Throttle actuator
• MAF sensor
• IAT sensor
• CMP sensor
• CKP sensor
• Knock sensor
• Wheel speed sensor
• CPU (Central Processing Unit) of ECM
• APP sensor
• Oil control valve (VVT model)
• Barometric pressure sensor
• A/C refrigerant pressure sensor
• ECM backup power supply
• Fuel level sensor
•CANECM and MIL operate as follows.
• MIL lights when the ignition switch is turned ON (but
the engine at stop) with the diagnosis switch terminal
ungrounded regardless of the condition of Engine and
Emission control system. This is only to check MIL in
the combination meter and its circuit.
• If the above areas of Engine and Emission control
system is free from any trouble after the engine start
(while engine is running), MIL turns OFF.
• When ECM detects a trouble which has occurred in
the above areas, it makes MIL turn ON while the
engine is running to warn the driver of such
occurrence of trouble and at the same time it stores
the trouble area in ECM back-up memory. (The
memory is kept as it is even if the trouble was only
temporary and disappeared immediately. And it is not
erased unless the power to ECM is shut off for
specified time or it is cleared by SUZUKI scan tool
(SUZUKI-SDT) (2).)
For further detail of the checking / clearing procedure,
refer to “DTC Check” or “DTC Clearance”. Priority Freeze frame data in frame 1
1Freeze frame data at initial detection of malfunction among misfire detected (P0300 – P0304), fuel
system too lean (P0171) and fuel system too rich (P0172)
2 Freeze frame data when a malfunction other than those in “1” is detected
Malfunction detected orderFrame
Frame 1 Frame 2 Frame 3 Frame 4
Freeze frame data to
be updated1st freeze frame
data2nd freeze frame
data3rd freeze frame
data
No malfunction No freeze frame data
1P0401 (EGR)
detectedData at P0401
detectionData at P0401
detection——
2P0171 (Fuel system)
detectedData at P0171
detectionData at P0401
detectionData at P0171
detection—
3P0300 (Misfire)
detectedData at P0171
detectionData at P0401
detectionData at P0171
detectionData at P0300
detection
4P0301 (Misfire)
detectedData at P0171
detectionData at P0401
detectionData at P0171
detectionData at P0300
detection

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 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