fuel consumption SUZUKI SX4 2006 1.G Service Workshop Manual
[x] Cancel search | Manufacturer: SUZUKI, Model Year: 2006, Model line: SX4, Model: SUZUKI SX4 2006 1.GPages: 1556, PDF Size: 37.31 MB
Page 60 of 1556
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
Page 97 of 1556
Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-47
Engine overheatingInoperative thermostat“Thermostat Inspection in Section 1F”
Poor water pump performance“Water Pump Inspection in Section 1F”
Clogged or leaky radiator“Radiator On-Vehicle Inspection and Cleaning
in Section 1F”
Improper engine oil grade“Engine Oil and Filter Change in Section 0B”
Clogged oil filter or oil strainer“Oil Pressure Check in Section 1E”
Poor oil pump performance“Oil Pressure Check in Section 1E”
Faulty radiator cooling fan control
system“Radiator Cooling Fan Control System Check”
Dragging brakesCondition “Dragging brakes” in “Brakes
Symptom Diagnosis in Section 4A”
Slipping clutch (for M/T model)Condition “Slipping clutch” in “Clutch System
Symptom Diagnosis in Section 5C” for M/T
model
Blown cylinder head gasket“Cylinder Head Inspection in Section 1D”
Air mixed in cooling system
Poor gasoline mileageLeaks or loose connection of high-
tension cord“High-Tension Cord Removal and Installation
in Section 1H”
Faulty spark plug (improper gap, heavy
deposits and burned electrodes, etc.)“Spark Plug Inspection in Section 1H”
Malfunctioning EGR valve“EGR Valve Inspection (If Equipped) in Section
1B”
High idle speedCondition “Improper engine idling or engine
fails to idle”
Poor performance of ECT sensor, MAF
sensor“Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C”, or “Intake Air
Temperature (IAT) Sensor Inspection in
Section 1C”
Faulty electric throttle body assembly“Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly“Accelerator Pedal Position (APP) Sensor
Assembly Inspection in Section 1C”
Faulty fuel injector(s)“Fuel Injector Circuit Check”
Faulty ECM
Low compression“Compression Check in Section 1D”
Poor valve seating“Valves and Valve Guides Inspection in
Section 1D”
Dragging brakesCondition “Dragging brakes” in “Brakes
Symptom Diagnosis in Section 4A”
Slipping clutch (for M/T model)Condition “Slipping clutch” in “Clutch System
Symptom Diagnosis in Section 5C” for M/T
model
Thermostat out of order“Thermostat Inspection in Section 1F”
Improper tire pressure“Tires Description in Section 2D”
Camshaft position control (VVT) system
out of order (for engine with VVT
system)“Oil Control Valve Inspection (For Engine with
VVT) in Section 1D”
Excessive engine oil
consumption – Oil
leakageBlown cylinder head gasket“Cylinder Head Inspection in Section 1D”
Leaky camshaft oil seals“Camshaft, Tappet and Shim Inspection in
Section 1D” Condition Possible cause Correction / Reference Item
Page 98 of 1556
Downloaded from www.Manualslib.com manuals search engine 1A-48 Engine General Information and Diagnosis:
Excessive engine oil
consumption – Oil
entering combustion
chamberSticky piston ring“Cylinders, Pistons and Piston Rings
Inspection in Section 1D”
Worn piston and cylinder“Cylinders, Pistons and Piston Rings
Inspection in Section 1D”
Worn piston ring groove and ring“Cylinders, Pistons and Piston Rings
Inspection in Section 1D”
Improper location of piston ring gap“Pistons, Piston Rings, Connecting Rods and
Cylinders Disassembly and Assembly in
Section 1D”
Worn or damaged valve stem seal“Valves and Valve Guides Inspection in
Section 1D”
Worn valve stem“Valves and Valve Guides Inspection in
Section 1D”
Engine hesitates –
Momentary lack of
response as accelerator
is depressed. Can occur
at all vehicle speeds.
Usually most severe when
first trying to make
vehicle move, as from a
stop sign.Spark plug faulty or plug gap out of
adjustment“Spark Plug Inspection in Section 1H”
Leaky high-tension cord“High-Tension Cord Inspection in Section 1H”
Fuel pressure out of specification“Fuel Pressure Check”
Malfunctioning EGR valve“EGR Valve Inspection (If Equipped) in Section
1B”
Poor performance of ECT sensor or
MAF sensor, “Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C” or “Intake Air
Temperature (IAT) Sensor Inspection in
Section 1C”
Faulty electric throttle body assembly“Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly“Accelerator Pedal Position (APP) Sensor
Assembly Inspection in Section 1C”
Faulty fuel injector“Fuel Injector Circuit Check”
Faulty ECM
Engine overheatingCondition “Engine overheating”
Low compression“Compression Check in Section 1D”
Camshaft position control (VVT) system
out of order (for engine with VVT
system)“Oil Control Valve Inspection (For Engine with
VVT) in Section 1D”
Surge – Engine power
variation under steady
throttle or cruise. Feels
like vehicle speeds up
and down with no change
in accelerator pedal.Leaky or loosely connected high-tension
cord“High-Tension Cord Removal and Installation
in Section 1H”
Faulty spark plug (excess carbon
deposits, improper gap, burned
electrodes, etc.)“Spark Plug Inspection in Section 1H”
Variable fuel pressure“Fuel Pressure Check”
Kinky or damaged fuel hose and lines
Faulty fuel pump (clogged fuel filter)
Malfunctioning EGR valve“EGR Valve Inspection (If Equipped) in Section
1B”
Poor performance of MAF sensor“Intake Air Temperature (IAT) Sensor
Inspection in Section 1C”
Faulty fuel injector“Fuel Injector Circuit Check”
Faulty ECM
Faulty electric throttle body assembly“Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly“Accelerator Pedal Position (APP) Sensor
Assembly Inspection in Section 1C” Condition Possible cause Correction / Reference Item
Page 285 of 1556
Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-3
Camshaft Position Control (VVT Variable Valve Timing) System DescriptionS6RW0D1401002
System Description
The VVT system is an electronic control system which continuously vary and optimize the intake valve timing in
response to the engine operating condition.
The optimized intake valve timing produce such an air intake with high efficiency that both the higher power generation
and lower fuel consumption can be attained in the whole engine speed range from low to high. In the area of the
average engine load, low emission of nitrogen oxides (NOx) and high fuel efficiency can also be attained by making
the valve opening overlap between the intake and exhaust valves longer.
For the brief of the system operation, the intake valve timing is varied by the cam timing sprocket (1) which varies the
rotational phase between the intake camshaft (3) and sprocket. The rotor (2) in the cam timing sprocket is actuated by
switching or adjusting the hydraulic pressure applied to the chambers for the timing advancing (7) and/or retarding (6).
To switch or adjust the hydraulic pressure appropriately, ECM operates the oil control valve (12) with detecting the
engine speed, intake air value, throttle opening, engine coolant temperature and camshaft position (angle).
1
4
5
10
8
9
2
7
6
12
11
3
60˚ (variable angle)
Most retarded timing Most advanced timing
Exhaust valveIntake valve
Crank angle
Overlap of valves
Valve lift
I5RW0C140002-01
4. Oil passage to chamber for timing retarding 8. Oil filter 10. Oil pan
5. Oil passage to chamber for timing advancing 9. Oil pump 11. Control signal from ECM
Page 470 of 1556
Downloaded from www.Manualslib.com manuals search engine 2D-1 Wheels and Tires:
Suspension
Wheels and Tires
General Description
Tires DescriptionS6RW0D2401001
The tire is of tubeless type. The tire is designed to
operate satisfactorily with loads up to the full rated load
capacity when inflated to the recommended inflation
pressures.
Correct tire pressures and driving habits have an
important influence on tire life. Heavy cornering,
excessively rapid acceleration, and unnecessary sharp
braking increase tire wear.
Tire Placard
The “Tire Placard” is located on the left or right door lock
pillar and should be referred to tire information.
The placard lists the maximum load, tire size and cold
tire pressure where applicable.
NOTE
Whether rim size and/or maximum load are
listed or not depends on regulations of each
country.
Inflation of Tires
The pressure recommended for any model is carefully
calculated to give a satisfactory ride, stability, steering,
tread wear, tire life and resistance to bruises.
Tire pressure, with tires cold, (after vehicle has set for 3
hours or more, or driven less than one mile) should be
checked monthly or before any extended trip. Set to the
specifications on the “Tire Placard” located on the left or
right door lock pillar.
It is normal for tire pressure to increase when the tires
become hot during driving.
Do not bleed or reduce tire pressure after driving.
Bleeding reduces the “Cold Inflation Pressure”.
Higher than recommended pressure can cause:
• Hard ride
• Tire bruising or carcass damage
• Rapid tread wear at center of tire
Unequal pressure on same axle can cause:
• Uneven braking
• Steering lead
• Reduced handling
• Swerve on accelerationLower than recommended pressure can cause:
• Tire squeal on turns
• Hard Steering
• Rapid and uneven wear on the edges of the tread
• Tire rim bruises and rupture
• Tire cord breakage
• High tire temperature
• Reduced handling
• High fuel consumption
Matched Tires and Wheels (Steel Type)
Tires and wheels are match mounted at the assembly
plant.
This means that the radially stiffest part of the tire, or
“high spot”, is matched to the smallest radius or “low
spot” of the wheel.
This is done to provide the smoothest possible ride.
The “high spot” of the tire is originally marked by paint
dot (1) on the outboard sidewall. This paint dot will
eventually wash off the tire.
The “low spot” of the wheel is originally marked by paint
dot (2) on the wheel rim-flange. Properly assembled, the
wheel rims’ paint dot should be aligned with the tires’
paint dot as shown in figure.
Whenever a tire is dismounted from its wheel, it should
be remounted so that the tire and wheel are matched. If
the tire’s paint dot cannot be located, a line should be
scribed on the tire and wheel before dismounting to
assure that it is remounted in the same position.
I2RH01240001-01
Page 1363 of 1556
Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn: 9C-11
Clock System Diagnosis (If Equipped)S6RW0D9304016
Display of thermometer
does not change at 50
°C
(122
°F)Outside air temperature is 50 °C (122
°F) or more—
Outside air temperature sensor faultyCheck outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Display of thermometer
does not change at “- - -
°C (°F)”Outside air temperature sensor faultyCheck outside air temperature sensor referring
to “Outside Air Temperature Sensor Inspection
(If Equipped)”.
Outside air temperature sensor circuit is
open or shortRepair circuit.
Wiring or grounding faultyRepair circuit.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty.
Display of fuel
consumption does not
change at “- - - l / 100 km
(km/l, MPG)”Vehicle is not running (instantaneous
fuel consumption mode)—
Fuel consumption was reset (average
fuel consumption mode, if equipped)Vehicle runs for a while.
Vehicle speed signal faultyCheck ECM for DTC referring to “DTC Check
in Section 1A”.
Wiring or grounding faultyRepair circuit.
CAN communication data (information)
can not be received by BCMCheck BCM for DTC referring to “DTC Check
in Section 10B”.
Information display unit faultyReplace unit.
BCM faultyReplace after making sure that none of above
parts is faulty. Condition Possible cause Correction / Reference Item
Condition Possible cause Correction / Reference Item
No displaying of clockCircuit fuse blownReplace fuse and check for short circuit.
Wiring or grounding faultyRepair circuit.
Clock unit faultyReplace unit.
Page 1475 of 1556
Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-2
BCM Reception Data
Theft Deterrent LightS6RW0DA201003
The information display or clock (1) of this vehicle includes a theft deterrent light (2) for the theft preventive purpose.
The BCM makes the theft deterrent light flash at certain intervals after the ignition switch is turned off until it is turned
on again. Also, DTCs stored in BCM can be checked by reading the flashing patterns of the theft deterrent light when
diagnosing troubles.
Security Alarm Description (If Equipped)S6RW0DA201005
Operation
The security alarm system provides a warning of an abnormal condition to those who are around. Its operation is as
follows. While the system is in the stand-by mode (when 20 seconds or more elapsed after the door is locked using a
keyless entry transmitter or door request switch), BCM monitors door lock status, door switch status and battery power
supply voltage. When it detects an abnormal condition (door is unlocked by some way other than using keyless entry
transmitter or door request switch and opened or cut off BCM power supply voltage temporarily), it activates the
warning buzzer (located in BCM), theft deterrent light, hazard warning relay and horn relay.
The security alarm system has 2 selectable modes.
• A mode: No operation
• B mode: Theft deterrent light blinks, hazard warning lights blink, warning buzzer (located in BCM) sounds and horn
sounds
Engine speed signal
Vehicle speed signal Engine coolant temperature signal
Brake pedal switch signal
A/C refrigerant pressure signal
Fuel consumption signal A/C compressor clutch signal
Engine type signal
Transmission range sensor signal
Combination meter spec signal
Ignition knob switch signal
Door lock/unlock request signal
Buzzer request signal
Answer back request signal DATA BCM
Receive
Combination
Meter TCM
(A/T model)Keyless Start
Control Module
(if equipped) ECM
I6RW0CA20002-01
12
I5RW0AA20003-01