cooling SSANGYONG KORANDO 2013 Owner's Manual

(4) Cooling Fan and A/C Compressor Control
Conditions for cooling fan
The cooling fan module controls the cooling fan relay, high speed relay and low speed relay.
The cooling fan is controlled by the series and parallel circuits
A/C
switchCooling
fanCoolant temperatureRefrigerant
pressureA/C
compressor
OFFOFF
-
LO
-
HI
-
ONLO
Refrigerant
pressure<18 bar
ON
HI
pressure
HI
-
HI
- OFF (cut)
A/C compressor OFF conditions
Approx. 4 seconds after starting the engine
When abrupt acceleration
Refrigerant pressure:
-
-
-
-
Output voltage according to refrigerant pressure
The output voltage from refrigerant pressure sensor is 1.7 V to 3.5 V when the refrigerant pressure is 10
Cooling fan control by ATF temperature
ATF temperature Cooling fan speed Remark
HI -

0000-00
7) Immobilizer Control
(1) Overview
The Immobilizer System provides an additional theft deterrent to the vehicle in which it is installed and
prevents it from being started by unauthorized persons. The transponder integrated in the key and the
engine control unit have the same code. When the ignition key with the integrated transponder is turned
to the ON position, the ECU (Engine Control Unit) checks the crypto code of the key and, if correct,
allows the vehicle to start the engine.
For details, refer to Chapter "BCM".
(2) Components
Conditions for cooling fan
Immobilizer
antenna
Immobilizer
key
Start motor
Instrument
cluster
BCM
G20DF ECU

0000-00
1. SPECIFICATIONS
System Unit Description Specification
Intake
systemAir cleaner elementFiltering type Dry, filter element
Filtering area
Service intervalEU: Change every 20,000 km
(But, shorten the service
interval under severe
conditions)
GEN: Clean every 7,500 km,
change every 15,000 km (But,
shorten the service interval
under severe conditions)
Air cleaner assemblyWeight 1.5kg
Operating temperature
Capacity 8L
IntercoolerCore material Aluminum
Size 510X122X67(WxHxT)
Tank materialPlastic (Molding)
Efficiency 80%
Exhaust
systemTurbocharger assemblyMax. temperature of turbine
housing
Diameter of turbine housing
Diameter of compressor
housing
Cooling type Air cooled type

2. COOLANT FLOWS IN COOLING SYSTEM

0000-00
HFM (Hot Film Air-Mass Sensor)
HFM sensor, version 6
Air cleaner assembly
Its volume is increased and air flowing
efficiency is improved.Intercooler assembly
Its volume is increased and cooling efficiency is
improved.

3. MAJOR CHANGES
Changes for engine compartment fuse box
8410-02 Engine compartment fuse box
- Changed layout
Name Changes made
A ALT terminal and fuse (150A) Newly adopted
B A/C compressor relay Changed to PCB type
C Headlamp high beam Changed to PCB type
D Rear glass/heated mirror relay Changed to PCB type
E Cooling fan high-speed relay Changed to Micro type
F Blower motor relay Changed to Micro type
G Cooling fan low-speed relay Changed to Micro type
H Cooling fan relay Changed to Micro type
I Fuel heater relay Changed to Micro type
J PTC1 heater relay Changed to Micro type
K Power window relay Changed to Micro type
L Starting relay Changed to Micro type

8510-00
Heater and A/C control switch
Automatic Manual
1) Overview
3. INTEGRATED INSTRUMENT PANEL SWITCH
It is mounted to the instrument panel and combined with the cooler; which provides cooling and
dehumidification by repeating the cycles of compression -> condensation -> expansion -> evaporation,
and heater; which controls the heating systemically in the course of circulating the coolant heated by the
engine heat to the heater. This allows the driver to maintain the indoor comfortable conditions throughout
the year.
Temperature control
dial
AUTO switch
LCD display
Fan speed dial
A/C switch A.
B.
C.
D.
E.ON/OFF switch
Defroster mode switch
Indoor temperature sensing
part
Air source selection switch
Air distribution switch F.
G.
H.
I.
J.Fan speed dial
A/C switch
MAX A/C switch
Defroster mode switch
Defroster & foot mode
switch
Temperature control dial A.
B.
C.
D.
E.
F.Air source selection switch
Vent mode switch
Bi-level mode switch
Foot mode switch G.
H.
I.
J.

3680-01
2. FEATURES
1) Advantages
Early Downshift with Hard Braking and Skip Shifts
When heavy braking is detected, the transaxle downshifts early and skips gears to provide increased
engine braking to provide gear selection for tip-in.
Gear Hold going Uphill/Downhill
If the accelerator pedal is released when traveling uphill, upshifts are prevented to reduce busyness on
grades. If the accelerator pedal is released when traveling downhill, upshifts are prevented to enhance
engine braking.
Drive and Reverse Engagement
A soft engagement feature avoids harsh take up of drive when selecting Drive or Reverse. This is
achieved by limiting engine speed and engine torque which results in a rapid, but progressive
engagement of either Drive or Reverse when moving from the Park or Neutral positions. Drive and
Reverse engagements from either Park or Neutral are performed in less than 2.2 seconds. There is no
drive engagement prevention strategy implemented on the transaxle system as there is sufficient engine
strategy to protect the system. However, reverse engagement is prevented until engine speed is less
than 1,400 rpm and the accelerator pedal position is less than 12% and vehicle speed is less than 10
km/h.
Converter Clutch Lock-Up In All Gears
The transaxle features converter clutch lock-up in all gears. This feature provides improved fuel economy
and vehicle performance. It also improves transaxle cooling efficiency when towing heavy loads at low
speeds, e.g. in city driving or hill terrain.
Embedded Memory Module (EMM)
The embedded memory module (EMM) is
transaxle assembly to ensure refined shift quality.
The EMM is used to store data such as valve body
calibration data and valve body serial number.
Upon installation, the TCU will download the data
from the EMM and utilize this data in the operation
of the transaxle.

2) Transaxle Cooling
The transaxle cooling system ensures rapid warm-up and constant operating temperature resulting in
reduced fuel consumption and refined shift quality.
It also includes a cooler by-pass within the hydraulic system to allow sufficient lubrication to the transaxle
drivetrain in the event of a blockage in the transaxle cooler.
3) Shift Strategy
Gear Change
Transaxle gear change is controlled by the
TCU. The TCU receives inputs from various
engine and vehicle sensors to select shift
schedules and to control the shift feel and
torque converter clutch (TCC) operation at each
gear change.
Coast down
Coast down down shifts occur at 0% pedal
when the vehicle is coasting down to a stop.
Torque Demand
Torque demand down shifts occur
(automatically) when the driver demand for
torque is greater than the engine can provide at
that gear ratio. If applied, the transaxle will
disengage the TCC to provide added
acceleration.

3680-01
4. LIMP HOME MODE
When the transaxle is defective
In the event of a system fault, the TCU also provides for failure mode effect control (FMEC) to maintain
maximum functional operation of the transaxle.
In the event of a total loss of control or electrical power, the basic transaxle functions (Park, Reverse,
Neutral and Drive) are retained. The 4th and reverse gear ratios with the torque converter clutch in the
unlocked state are the retained gear states the hydraulic system supports without any electrical
assistance.
The TCU communicates with other vehicle electronic control modules by the controller area network
(CAN). If a major fault develops, the transaxle may automatically operate in a "limp home" (failure)
mode to enable the vehicle to be driven to an authorized dealer for repair.
The TCU also provides for transaxle diagnostics, which meet the requirements of OBD II legislation,
monitoring all components which may effect vehicle emissions. 1.
2.
3.
4.
When the transaxle overheats
Limp home mode may also be engaged if the battery charge falls below 8V.
If the transaxle overheats, the shift patterns will automatically change to enable improved transaxle
cooling.
During transaxle overheat, the instrument cluster transaxle selector position display and the over
cluster until normal transaxle operating temperature is reached. 1.
2.
3.
Towing the automatic transaxle equipped vehicle
Flat-bed equipment is the best method of moving a disabled vehicle to avoid any damages.
For AWD vehicle: The vehicle must be towed with a wheel lift and dollies or flatbed equipment with
all the wheels off the ground.
For 2WD vehicles: It is acceptable to tow the vehicle with the rear wheels on the ground without
dollies and the front wheels off the ground. When being towed by a commercial towtruck and wheel
dollies are not available, the front of the vehicle should be lifted, not the rear. -
-