width SSANGYONG NEW ACTYON SPORTS 2013 Service Manual

02-72211-06
7) Battery Voltage Correction Mode
When battery voltage is low, the ECM can compensate for a weak spark delivered by the ignition
module by using the following methods:
Increasing the fuel injector pulse width.
Increasing the idle speed rpm.
Increasing the ignition dwell time. -
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8) Fuel Cut-Off Mode
No fuel is delivered by the fuel injectors when the ignition is off. This prevents dieseling or engine runon.
Also, the fuel is not delivered if there are no reference pulses received from the CKP sensor. This
prevents flooding.

06-92110-01
3. PWM (PULSE WIDTH MODULATION) ELECTRIC FAN
OPERATION
1) Function
The PWM (Pulse Width Modulation) high capacity electric fan is installed instead of electric condenser
fan to enhance the durability and controllability and reduce noise.
2) Mounting Location
PWM
Fan shroud
Electric fan PWM unit

06-10
3) PWM Electric Fan
(1) Advantages and Disadvantages of the PWM Electric Fan
Advantages ▶
Enhanced A/C performance: at low speed, at
idling, driving in city
Reduction of vibration/noise: fan activated by
PWM only when necessary
Reduction of engine consuming power
(V/Fan driving force) by 4 Hp - Cost saving -
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Disadvantage ▶
Poor engine cooling perfomance at low and
high rpm -
4) PWM (Pulse Width Modulation) Unit
It controls the time of the output voltage to control
the fan motor speed independently.
Internal functions ▶
Motor power shutting-off function when
overcurrent is applied
Adverse voltage prevention function
Detection function for the motor lock
Temperature detecting function: The electric
fan operates at FULL speed to cool down
the PWM unit when the interior temperature
of PWM unit is over 120~150°C.
Communication function when failing: The
fail signal is transmitted to the ECU when the
PWM unit is malfunctioning.
Soft start function: The motor speed is
gradually increased when the motor is
initially operated. -
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14-8
Measure the dial runout and lateral runout
on both the inboard and outboard rim
flanges. - Tire inflation pressure -
Check the tire inflation pressure by
inspecting the tread width. -
Specified value 2.66 mm
Wheel runout
If wheel runout or tire runout is excessive, it
could result in abnormal wear of the tire.
Measure the runout with a dial gauge. 4.
Measure free radial runout on the tire tread. -
Specified value 2.03 mm
If any measurement exceeds the above
specifications, replace the applicable tires
or wheels -Tire inflation pressure 3.
Specified value 32 psi
Maintaining the specified tire ressure is
essential for comfortable riding, driving
safety, and long tire life. Incorrect inflation
pressures will increase tire wear and will
impair safety, vehicle handling, comfortable
driving and fuel economy. Always make sure
that the tire inflation pressure is correct.
Proper
inflationProper
inflationOver
inflation
Tread width Tread width Tread width

14-14
Tire Unit Indication ▶
Tire Inflation Pressure (32 psi) ▶
Proper inflation
pressureExcessive inflation pressure Low inflation
pressure
Aspect ratio (%)
= Nominal section height (H) / Nominal section
width (W)
X 100
The contact area between the
ground and tire faces the tread
layer completely. Thus the
driving force and the braking
force are optimized, and the tire
is worn out evenly resulting in
increased life.The contact area between the
ground and tire is not enough,
so the tire is worn out unevenly
and the tire is vulnerability to
outside influence.The contact area between the
ground and tire is excessive, so
a lot of heat is generated and
the tire is worn out unevenly
and abnormally.
Tread width Tread width Tread width