2013 SSANGYONG KORANDO engine

Operating process
- Engine running (Alternator: High)

8710-01
REKES key switch description
Door LOCK (locks the doors and tailgate when pressed briefly) 1.
All doors and the tailgate are locked and the theft deterrent mode is activated.
When the theft deterrent mode is activated, the hazard warning lamp flashes twice. When this
button is pressed once more within 4 seconds, the hazard warning lamp flashes twice and the
buzzer sounds once. -
-
Panic (Press and hold for 2 seconds or more) 3.
If this button is pressed for 2 seconds or more, the hazard warning lamp flashes while the buzzer
sounds for approx. 30 seconds.
If the door LOCK button or panic button is pressed, this function is deactivated. -
- Door UNLOCK (unlocks the doors and tailgate when pressed briefly) 2.
If this button is pressed briefly, all doors and the tailgate are unlocked and the theft deterrent
mode is deactivated.
When the theft deterrent mode is deactivated, the hazard warning lamp flashes once.
In theft deterrent mode, if a door, tailgate or engine hood is not opened within 30 seconds after
the door is unlocked by a remote controller, the doors are locked with the hazard warning lamp
and buzzer activated (lamp flashes twice and buzzer sounds once, the theft deterrent mode is
activated again). -
-
-
13. REMOTE KEYLESS ENTRY SYSTEM (REKES)
REKES key (Transmitter)
When the user operates the switch of the REKES key, the vehicle control message formatted by the
remote controller CPU is sent to the main part via radio transmission. The CPU of the main part controls
the vehicle and the main part controls the vehicle operations.
Door LOCK
Door UNLOCK
Panic
The escort function is activated with the headlamp ON for 20 seconds when the door LOCK button
is pressed for 0.5 seconds or more in the theft deterrent mode. If the door LOCK button is pressed
briefly or the ignition is turned ON during the escort operation, the escort is deactivated.

8710-01
24. IMMOBILIZER SYSTEM
1) System Description
The BCM without SKM communicates with the transponder in the REKES key and immobilizer unit in
the key box through wireless communication. The immobilizer unit and BCM check the encrypted codes
received through hard wire communication to start the engine.
Stays on: Communication failure between immobilizer and EMS (ECU)
Flashes: Immobilizer coding failure (once per second)
2) System Diagram

3) Immobilizer Ignition Key Verification
When turning the ignition key to the ON position, the power is supplied to the immobilizer unit and EMS
(ECU). The ECU communicates with the immobilizer unit to verify the key and transponder. If it is valid,
the ECU starts to control the engine or immobilizer indicator (illumination or flashing) when the ignition key
is turned to the START position.
Once the key is verified, valid key verification time is provided for 10 seconds and the engine can be
started by turning the ignition key to the engine START position during this verification time. If the ignition
key is turned to the START position again after the 10 seconds of verification time, the key verification
should be reperformed.
When the ignition key is inserted, the immobilizer unit requests the transponder verification through
the antenna.
The transponder sends the encrypted message to the immobilizer control unit.
The immobilizer unit compares the encrypted message received from the transponder to the
coded value through the logic circuit. If they are identical, it requests the transponder approval.
When the ignition is turned ON, the EMS (ECU) requests immobilizer verification process through
the P-CAN.
The immobilizer control unit sends the encrypted message to the EMS (ECU).
The EMS controls the engine normally when the coded value and the encrypted message sent
from the immobilizer are identical. 1.
2.
3.
4.
5.
6.
When the immobilizer verification has failed, the verification signal is sent again 3 times for 2
seconds, and the verification procedure is carried out up to 3 times by turning the ignition ON within
10 seconds. If the three re-verifications fail, verification procedure is stopped and will be restarted
after 10 seconds.

When deleting the old code of the transponder registering an extra ignition key, please attend on
the site and observe the process personally.
In any cases, the immobilizer system cannot be removed from the vehicle. If you attempt to remove
it and damage the system, starting will be impossible. So never attempt to remove, damage or
modify it.
The remote engine starter cannot be installed to the vehicle equipped with the immobilizer system.
Do not drop the key or subject it to impact the key, as it may damage the transponder inside the
key.
The engine cannot be started using a key with damaged transponder.
In the following cases, you may experience starting problem or a system error can occur. 1.
2.
3.
4.
5.
6.
5) Cautions for immobilizer
When two or more ignition keys come into contact with (each) other(s), or the key is close to any
device that sends/receives electromagnetic fields or waves.
When the ignition key is close to any electromagnetic device, such as lighting equipment, security
keys or security cards.
When the key is close to a magnetic, metal object, or battery. -
-
-

Smart key
Wireless communication with
SKM system by receiving LF
(Low frequency) and
transmitting RF (Radio
frequency)Emergency slot
For emergency use to
start the engine when
the smart key battery has
been discharged.
SKM
Wireless communication with other
modules through B-CAN, P-CAN,
hard wire to control SKM system
External buzzer
(SKM buzzer)
Sounds a warning related to SKM
system
START/STOP switch
- Supplies power to the
vehicle wiith a button
(ACC, IGN1, IGN2)
- Indicates vehicle status
with LED illumination and
flashing
1. OVERVIEW
The SKM (Smart Key Module) system is equipped to only the vehicles with smart key and is to prevent
theft and enhance the driver experience. When the driver presses a door handle switch carrying a smart
key, this system checks the smart key information and driver door status and locks/unlocks the doors
(passive function). The vehicle can be started when the driver enters the vehicle and presses the
START/STOP switch (passive start function).
2. COMPONENTS
Smart key indicator
Smart key undetected warning/
verification fail indicator
BCM
Communicates with SKM through
B-CAN to control the vehicle
components

Interior (center) antennaInterior (rear) antenna
The smart key verification many not possible in an area where the communication is poor, such as
the seat cushion that the seat heated wire is operated, around the pedals and the on the floor.
The smart key system malfunctions may occur when generating radio waves around the smart key
or vehicle, or attaching a electronic device which generates radio waves on the smart key or
vehicle. -
-
(2) Passive start actuation area
Starting the engine by pressing the START/STOP switch with the gear selector lever in "P" or "N"
position and the brake pedal depressed (START/STOP switch LED: green) after the driver has
entered the vehicle carrying a smart key. -
Passive start actuation area: Vehicle interior -

8712-03
7. SMART KEY VERIFICATION TIME CONTROL
The smart key verification time control consists of pre-verification timer and immobilizer verification timer,
and no verification process is required for 30 seconds after the each verification process has been
completed.
Pre-verification timer: Time for performing start & power mode function that controls the vehicle
power.
Immobilizer verification timer: Time for which the start with a smart key is possible after the SKM and
EMS (ECU) verify the immobilizer. -
-
Item Pre-verification timer Immobilizer verification timer
Operating power
Power OFF, ACC, IGN ON IGN ON after pre-verification (ACC)
FunctionTime for which the power control can be
carried out under the verified conditions
(30 seconds after the verification)Time for which the start request can be
carried out without a smart key under the
verified conditions
(30 seconds after the verification)
Input conditions
Verification
conditionsSmart key searching completed after the
following conditions are met:
Close signal input after any door
opened
Brake switch signal input
START/STOP switch signal input
After emergency slot inserted
After IGN OFF 1.
2.
3.
4.
5.Power changed to IGN ON after
valid pre-verification
Power changed to IGN ON by
smart key verification after pre-
verification timer completed
Smart key verification succeeded
by brake switch input after
immobilizer verification timer
completed with IGN ON
Smart key verification succeeded
after immobilizer verification timer
completed with IGN ON,
immobilizer verification and brake
switch input 1.
2.
3.
4. All doors closed
(including tailgate)
START/STOP switch input
Brake switch signal input
Smart key inserted into emergency
slot
Smart key searching completed
Engine start ON to OFF 1.
2.
3.
4.
5.
6.Brake switch signal input
START/STOP switch input 1.
2.