immobilizer SSANGYONG KORANDO 2013 User Guide

Item Functionw/o
SKMw/ SKM
17 Flasher unit control Left turn signal lamp control O O
Right turn signal lamp control O O
Hazard warning lamp control O O
AUTO hazard warning lamp control O O
Emergency hazard warning flasher control O O
18 Fog lamp control Fog lamp control O O
19 Immobilizer function Key coding O X
CHALLENGE O X
CAN information O X
20 Folding/unfolding control Folding/unfolding control O O
AUTO folding/unfolding control O O
21 Approach lamp control Approach lamp control (for vehicles without
SKM)OX
Approach lamp control (for vehicles with SKM) X O
22 SKM warning control SKM buzzer control X O
16 System power sleep
modeSystem power sleep mode control O O

8710-01
2) Without SKM
BCMInternal buzzer (chime)REKES key
Immobilizer
ICM box
Internal buzzer (chime)
Warning horn
Mounting location Component

Door is opened with IGN OFF.
The key hole lamp comes on.
The key hole lamp comes on for 10 seconds (T1) when the door is closed. A.
B.
C. Operation 1.
The ignition is turned ON with the key hole lamp ON.
The key hole lamp goes out. D.
E. Operation 2.
10. KEY HOLE LAMP CONTROL
The key hole lamp goes out when the REKES LOCK signal is received (in theft deterrent
mode).
When the key hole lamp and immobilizer signals are received simultaneously, the immobilizer signal
overrides the key hole lamp signal.
When the immobilizer confirmation is failed, regardless of the key hole lamp operation condition, it
flashes for 11 seconds at intervals of 0.5 sec. ON/0.5 sec. OFF.
When the ignition is turned ON in virgin status, the key hole lamp flashes for 8 seconds at intervals
of 0.5 sec. ON/0.5 sec. OFF. -
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8710-01
Theft deterrent mode deactivation conditions (for vehicles without SKM)
The REKES UNLOCK signal is input with IGN ON.
When the REKES UNLOCK signal is input in the theft deterrent mode or with the theft deterrent mode
deactivated, the hazard warning lamp is operated once and the theft deterrent mode is deactivated
(without warning horn output). -
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Theft deterrent mode (for vehicles without SKM)
Battery power
Front/rear door open
Tailgate open
4 doors LOCK/UNLOCK
Hood open -
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- The BCM monitors the following conditions continuously in theft deterrent mode.
Theft deterrent alarm activation (for vehicles without SKM)
Any door including hood and tailgate is opened in theft deterrent mode.
The LOCK switch of any door including tailgate is set to UNLOCK in theft deterrent mode.
Any door except tailgate and hood is closed and then opened after 30 seconds of alarming.
The hazard warning lamp and warning horn are activated for 30 seconds at intervals of 0.5 sec.
ON/0.5 sec. OFF. -
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Theft deterrent alarm deactivation conditions (for vehicles without SKM)
Any signal from the REKES (LOCK, UNLOCK, Panic, Escort) deactivates the theft deterrent
alarm.
The theft deterrent alarm remain on for up to 30 seconds.
When the theft deterrent alarm is activated in theft deterrent mode, turning the ignition ON
immediately deactivates the mode. The alarm is deactivated 30 seconds (time remaining) after that.
(For vehicles with immobilizer system, the alarm is deactivated once the key is verified after the
ignition is turned ON) -
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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. -
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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. -
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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.

Component Pre-verification timer Immobilizer verification timer
Deactivation
conditions
If any condition for pre-verification timer and immobilizer verification timer is met, no verification process
is required for 30 seconds after the each verification process has been completed.
Operation before pre-verification timer
Passive LOCK/UNLOCK
REKES LOCK/UNLOCK -
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Ignition status after immobilizer verification
The immobilizer verification has been completed when the engine starts.
The immobilizer verification is not deactivated until the ignition is turned to ON, OFF or ACC
ON.
The immobilizer is not deactivated when the key out warning condition is met while the engine
is running. -
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8. START & POWER MODE CONTROL
The ignition status is changed to OFF, ACC ON, IGN ON and engine cranking by one START/STOP
switch.30 seconds has been passed after
the immobilizer verification timer
IGN1 OFF
No smart key is found inside the
vehicle with all doors closed after any
door has been opened and then
closed. 1.
2.
3. 30 seconds has been passed after
the pre-verification timer
Door handle switch ON
IGN ON
Theft deterrent mode
activation/deactivation
Door status changed (open/closed) 1.
2.
3.
4.
5.

Engine starting
When the START/STOP button is pressed with the brake pedal applied and gear selector lever in P or
N position, the SKM performs the immobilizer verification and sends the engine START request signal
to the EMS if a normal coded smart key is found.
When the .engine start request signal from the START/STOP switch is received, the SKM sends the
start request signal through the P-CAN and the vehicle power status signal to the BCM through the B-
CAN.
The SKM cuts the power for IGN2 and ACC relays while the engine is cranking as cutting the electric
load is necessary.
The SKM receives the engine start status signal from the EMS (ECU) through the P-CAN. 1.
2.
3.
4.
EMS (ECU)Engine rpm, engine cranking/stop/running/loaded
TCUGear selector lever position: P, N
ABS/ESPVehicle speed signal (wheel speed sensor on each wheel)
The SKM turns on the ACC/IGN2 relays after the engine cranking and sends the signal for IGN after
starting to the BCM through the B-CAN.
When the START/STOP button is pressed and engine cranking request1 signal is sent, the EMS
(ECU) cranks the engine after checking the engine warming up. If the engine cranking request2
signal is sent, the EMS cranks the engine without checking the engine warming up. 5.
6.
Engine cranking request1
(engine start after
warming up)When the START/STOP button is pressed briefly under the start
conditions, the vehicle starts to warming up and then the engine is started
after a certain amount of time (warming up indicator ON to OFF).
Engine cranking request2
(engine start without
warming up)When the START/STOP switch is pressed once again while the engine
cranking request1 signal is sent, the engine is started (regardless of
warming up indicator)
It can be delayed by several seconds according to the engine
coolant temperature.
Starting engine while driving 7.
The engine start request signal is sent when the START/STOP switch is pressed, provided that the
vehicle speed is less than 10 Km/h or no vehicle speed signal is input, the gear selector lever is in
N position and the brake switch is ON with IGN ON (30 sec. verification is not required).
The engine start request signal is sent regardless of the brake signal when the START/STOP
switch is pressed, provided that the vehicle speed is 10 Km/h or more and the gear selector lever is
in N position with IGN ON (30 sec. verification is not required). -
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