2012 SSANGYONG KORANDO cruise control

15-91490-00
3. ECU CONTROL
1) Functions
ECU receives and analyzes signals from various sensors and then modifies those signals into
permissible voltage levels and analyzes to control respective actuators.
ECU microprocessor calculates injection period and injection timing proper for engine piston speed and
crankshaft angle based on input data and stored specific map to control the engine power and emission
gas.
Output signal of the ECU microprocessor activates the injector solenoid valve to control the fuel injection
period and injection timing; so controls various actuators in response to engine changes.
Auxiliary function of ECU has adopted to reduce emission gas, improve fuel economy and enhance
safety, comforts and conveniences. For example, there are autocruise and immobilizer and adopted
CAN communication to exchange data among electrical systems (automatic T/M and brake system) in
the vehicle fluently. And the diagnostic tool can be used to diagnose vehicle status and defectives.
<00760097008c00990088009b00900095008e0047009b008c00940097008c00990088009b009c0099008c0047009900880095008e008c00470096008d0047006c006a007c00470090009a0047009500960099009400880093009300a000470054005b005700
47009b009600470052005f005c00b6006a004700880095008b> protected from factors like oil,
water and electromagnetism and there should be no mechanical shocks.
2) Control Functions
Controls by operating stages:
To make optimum combustion under every operating stage, ECU should calculate proper injection
volume in each stage by considering various factors.
Starting injection volume control:
During initial starting, injecting fuel volume will be calculated by function of temperature and engine
cranking speed. Starting injection continues from when the ignition switch is turned to ignition
position to till the engine reaches to allowable minimum speed.
Driving mode control:
If the vehicle runs normally, fuel injection volume will be calculated by accelerator pedal travel and
engine rpm and the drive map will be used to match the drivers inputs with optimum engine power. -
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01-8
Steering wheel remote
control switchPassenger door switch
Lower main panel
switch
Start/stop switch
Cruise control switch
Hazard warning switch
bezel assembly
Multifunction switch
FATC switch
Drive door main switch
& Outside rearview mirror
switch
3. SWITCH SYSTEM LAYOUT

05-158010-01
Indicator
(green)
Hazard indicator ▶
ECO indicator ▶
Cruise control indicator ▶
Indicator
(red)
Indicator
(green)
Indicator
(green)
4WD LOCK indicator ▶
Indicator
(red)
4WD check warning lamp ▶This indicator comes on when the cruise control system is activated.
This indicator goes off when the brake pedal is depressed. (auto cruise
deactivated)
This warning lamp comes on when the 4WD LOCK switch is pressed.
This indicator goes off when pressing the switch again.
This warning lamp comes on when the 4WD system is defective. This indicator comes on when the hazard warning flashers are switched on.
(applies to STD class)
This indicator comes on when the ECO cruise system is activated.
This indicator goes off when the brake pedal is depressed. (ECO
deactivated)

05-478010-01
Pin No.Message
Operating condition
Domestic Export
Smart key
warningThis message comes on for 10 seconds if incorrect
signal on vehicle power control, ignition switch or gear
shift position is received or the signal is not received from
the SKM after the smart key is verified.
This message comes on for approx. 10 seconds if the
low smart key battery is detected when the ignition
switch is pressed or the engine is started.
DoorThis message comes on to inform the driver that any of
the doors is open or closed.
While the door/tailgate is displayed in 4 steps, the hood
displayed in 3 steps.
Parking aid
systemIf any obstacle is detected in the rear of the vehicle when
the shift lever is moved to "R" position with IGN ON,
each sensor shows its position and distance.
If any error is detected during initial diagnosis, it is
displayed as "?". Other than that is operated in the same
way as the PAS distance measurement mode.
Cruise
controlThis message comes on when the cruise control system
is activated.
This message comes on when the cruise control system
is deactivated.
This message comes on when the cruise switch is
moved to the ECO position.Pin No. Message Operating condition

05-48
Pin No.Message
Operating condition
Domestic Export
Cruise control This message comes on when the ECO cruise mode
is deactivated.
EMSThis message comes on when the engine is faulty.
LampThis message comes on when the tail lamps are ON
with the ignition in the "OFF" or "ACC" position.
SUNROOF
SYSTEMFor the vehicle with SKM, this message comes on
when the sunroof is open with the ignition in the "OFF"
or "ACC" position. For the vehicle without SKM, this
comes on when the sunroof is open with the ignition in
the "OFF" position and the key removed.
Low fuel level This message comes on when the remaining fuel is
insufficient.
ESP checkThis message comes on when the ESP system is
faulty.
ABS check This message comes on when the ABS system is
faulty.
Engine oil level
checkThis message comes on when the engine oil level is
low. Pin No. Message Operating condition

06-6
Steering wheel remote
control switchPassenger door switch
Lower main panel
switch
Start/stop switch
Cruise control switch
Hazard warning switch
bezel assembly
Multifunction switch
FATC switchDrive door main switch
& outside mirror switch
Switch layout ▶

06-358510-00
3) Cruise Control Switch
Cruise control switch
The cruise control is an automatic speed control system that maintains a desired driving speed without
using the accelerator pedal. The cruise control switch is fitted to the bottom right section of the steering
wheel. When this switch is operated, the AUTO CRUISE or ECO lamp on the instrument cluster comes
on.
The cruise control switch has a fivefold switch in it. The engine ECU can determine the current driving
condition since the resistance varies depending on the operation of the switch.
The cruise control system is operated at vehicle speed of between 38 km/h and 150 km/h. The manual
transmission is operated in the range of 3rd gear or higher.
This function can be used at the following traffic condition. (It is important to be careful for using this
function)
Cruise control (ON)
Cruise control (OFF)
Cruise control (Acceleration)Cruise control (Deceleration)
Cruise control (Reset)

02-16
3) Shift Map Selection
The driver can manually select between normal (S) and winter modes (W) via the mode switch.
Depending on the transaxle temperature, uphill and downhill grades and altitude, shift maps will be
selected by the TCU to suit the driving conditions. The following maps are available.
Standard (Normal) Mode ▶
Normal Mode is selected when the lever is in the D position with the mode switch in the normal (S)
position and the transaxle is within normal temperature ranges. Shift schedule points are optimised for
fuel efficiency and general driving conditions.
Uphill and Downhill Mode ▶
In this mode, depending on the load of the vehicle, adaptive shift maps are selected to progressively
adjust the shift points and torque converter lock points.
Altitude Mode ▶
Shift points are automatically adjusted at higher altitudes to compensate for changes in engine torque
where the torque produced by the engine is greatly reduced by the effects of reduced barometric
pressure and temperature.
Winter (W) Mode ▶
When winter mode is selected, starting in second gear is facilitated and the WINTER mode indicator
light is switched ON. To prevent wheel spin on slippery surfaces, the transmission will not allow first gear
unless manually overridden.
Warm up Schedule ▶
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470089008c00930096009e00470059005700b6006a0055>
The torque converter will not lock-up below 20°C to assist in transaxle warm-up.
Hot Mode ▶
<007b008f008c0047008f0096009b004700940096008b008c00470090009a0047009700990096008e0099008c009a009a0090009d008c009300a0004700880097009700930090008c008b00470089008c009b009e008c008c00950047009b008c0094009700
8c00990088009b009c0099008c009a00470096008d00470058>10° ~ 200°C. The torque
converter lock-up is increased to prevent heat generation by the torque converter.
Activation of the hot mode inhibits other transmission performance features including uphill and downhill
compensation and altitude compensation. Some degradation in shift feel may be experienced as the
torque converter is not unlocked during shifting.
Cruise Control Mode ▶
When cruise control is activated the engine ECU may request the transaxle to downshift under trailing
throttle conditions to increase engine braking.
Above 110℃the electrical radiator fans are switch ON
Above 130℃the engine torque will be reduced and the W light on the instrument cluster will flash
Above 200℃the transaxle will neutralise until the fluid tem
perature falls below 200°C as a final
protection.