2012 SSANGYONG KORANDO immobilizer

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8) Key Hole Illumination
When opening the door with IGN OFF, the key hole lamp comes on.
When closing the door, the key hole lamp stays on for 10 seconds and goes off.
When turning the ignition switch to ON position during the operation of key hole illumination, it goes of
f
immediately.
When receiving the door lock signal (entering into theft deterrent mode), the lamp goes off.
The key hole illumination function has a priority over the immobilizer function.
If the communication with the immobilizer is interrupted, the lamp comes on for 11 seconds with the
interval of 0.5s ON/0.5s OFF regardless of the operating conditions of key hole lamp.
When turning the ignition switch to ON position in "Virgin" condition, the lamp comes on for 8 seconds
with the interval of 0.5s ON/0.5s OFF. 1.
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6.
(*1) ON: IGN ON
OFF: IGN OFF(*2) Open: driver or passenger door is open
Close: driver and passenger door are closed
Room lamp OFF control ▶
The room lamps stop operating when the BCM enters into the theft deterrent or sleep mode. (This is
to prevent battery discharge if the overhead room lamp and sensor room lamp switch is ON position.)
The room lamps go off automatically 10 minutes after the key is removed. After that, if the door unlock
or all door open signal is received and the key is inserted, the sleep mode is deactivated and the room
lamps operate for another 10 minutes.
The room lamps come on when the key is inserted (BCM without SKM) or the ignition switch is turned
to "ACC" or "ON" position (BCM with SKM) while the room lamps are OFF. 1.
2.
3.

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Disarming by REKES remote control 2.
When unlocking the doors or turning the ignition switch to ON position.
When receiving the door unlock signal in theft deterrent mode, all doors are unlocked and the turn
signal lamps blink once (the horn does not sound).
When receiving the door unlock signal with the theft deterrent mode disarmed, the turn signal
lamps blink once (the horn does not sound). -
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In theft deterrent mode
BCM observes the conditions below continuously: 3.
Battery connection (B+)
Front/rear door open
Tailgate open
4 doors lock/unlock
Engine hood open -
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Activation of theft deterrent alarm 4.
When any of doors, tailgate or engine hood is open in theft deterrent mode
When unlocking the door lock switch in theft deterrent mode
When opening a door after completion of theft deterrent alarm (for 30 seconds)
Horn and the turn signal lamps operate for 30 seconds with the interval of 0.5s ON/0.5s OFF. -
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Disarming conditions of theft deterrent mode 5.
When pressing any switch (lock, unlock, panic) on the remote control key during the theft deterrent
alarm, the alarm stops its operation.
When turning the ignition switch to ON position during the theft deterrent alarm, the alarm stops its
operation.
(For vehicle with immobilizer system, the alarm stops after completion of authorization. For vehicle
without immobilizer system, the alarm stays ON for 30 seconds)
When turning the ignition switch to ON position during the theft deterrent alarm, the alarm stops
and the theft deterrent mode is deactivated after 30 seconds (remaining time).
If there is not any disarming commend, the alarm stays ON for 30 seconds and the theft deterrent
mode continues. -
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Operation when disarming 6.
The horn and the turn signal lamps stop their operation. -

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2. IMMOBILIZER/REMOTE CONTROL KEY CODING
1) System Overview
While the communication between BCM/SKM and ECU is based on the CAN communication, the
communication between transponder and BCM/SKM is based on LF (Low frequency) and RF (Radio
frequency). When the ignition switch is turned to ON position, the BCM checks the verified transponder
according to the immobilizer verification procedure, if correct, allows the vehicle to start the engine. The
immobilizer indicator comes on during the communication and if the verification is carried out
successfully the indicator goes off.
If there is something wrong in the system, the indicator blinks.
2) System Layout

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3) Operation of Immobilizer
When the ignition switch is turned to the ON position with REKES key, the BCM checks the crypto code
of the inserted key using the immobilizer antenna and sends whether the engine is startable or not to the
engine ECU through the CAN communication so that the engine can be started.
BCM
REKES key
Immobilizer antenna
ECUCAN line
For the vehicle with the immobilizer, there can be a problem in starting the vehicle or the system error:
When two or more immobilizer keys come into contact with (each) other(s).
When the key is close to any device sending or receiving electromagnetic fields or waves other
than Ssangyong products.
When the key is close to any electronic or electric devices such as lighting equipment, security keys
or security cards.
When the key is close to a magnetic or metal object or a battery. -
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4) Components of REKES Key
Battery cover
Side & main cover Battery: CR2032TransponderKey plate Remote control PCB
How to replace battery ▶
Remove the battery cover using a flat screwdriver to replace the battery.
How to replace transponder ▶
Remove battery cover and battery
Remove rubber cover and screw then remove key plate
Remove side cover and main cover
Replace transponder -
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Do not drop or shock to the transponder in the key as it may be damaged.
With a damaged transponder, the engine cannot be started.
When you erase the code or register an extra key, please attend on the site.
In any cases, the immobilizer system can not 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. -
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4) Smart Key Verification Time Control
(1) Pre-verification timer
When the operation signal from the START switch is received, the START & power control functions can
be performed without smart key verification.
(2) Immobilizer verification timer
The immobilizer verification status indicates that it is possible to respond to the request message sent
from the EMS to deactivate the immobilizer. The SKM verified a smart key and the engine can be
started.
The 30-second immobilizer verification time is started when:
the ignition status is changed to IGN by the START switch while the pre-verification timer is activated.
the ignition status is changed to IGN by the smart key verification while the pre-verification timer is
stopped; the SKM verified a smart key by the brake switch signal while the immobilizer verification
timer is stopped or the ignition status is IGN ON.
the SKM verified a smart key successfully if the immobilizer verification timer is stopped with IGN
ON/immobilizer verification /brake switch ON. -
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Condition SKM operation
- when door closed signal is input with - B+ or ACC ON
- when brake is applied with - B+ or ACC ON
- when START switch is operated with - B+
- when smart key is inserted into slot & brake switch is
operated or START switch is operated with - B+Once the vehicle interior verification
is completed, 30 sec. pre-verification
timer is started
when the ignition is turned OFF with IGN ON and engine
running 30 sec. pre-verification timer is
started without re-verification
Timer deactivation conditions: after 30 sec. has passed, IGN ON, Outside door handle switch ON,
entering theft deterrent mode when door condition is changed
IGN1 OFF
30 sec. has passed after immobilizer verification
Any door is opened and then closed when all doors are closed & smart key out
When the engine starts to run, the immobilizer verification status is determined, and the immobilizer will
not be deactivated until the ignition status is changed to IGN/ACC/OFF.
The immobilizer is not deactivated when the key out warning condition is met while the engine is
running. (when the RND is received by the EMS reset while the engine is running)
When attempting to start the engine without immobilizer verification, the system performs smart key
verification procedures, and sends the engine start request to EMS only when the verification result is
normal. -
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*Entry conditions ▶
Deactivation condition ▶