2012 SSANGYONG KORANDO key

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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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1. SYSTEM LAYOUT
The vehicles with smart key system are equipped with the SKM (Smart Key Module) unit. The SKM,
which does not use the traditional key or remote controller to access the vehicle, provides 3 functions.
The passive UNLOCK function unlocks the door after confirming the smart key information and the
driver's door conditions when the driver carrying a smart key touches the door handle. The passive
START function starts the engine when the START switch is pressed by the driver sitting on the driver's
seat. The passive LOCK function locks the door when the door handle switch is pressed by the driver
after exiting the vehicle.
Buzzer
Start switch
SKM unit
Outside door handle
switch and antenna

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Slot
Rear bumper antenna
Front interior antennaRear interior antenna
Smart key

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2. INPUT/OUTPUT DIAGRAM
Major functions ▶
Passive LOCK/UNLOCK by outside door handle switch
Passive UNLOCK by tailgate open switch
Passive START by START switch
Engine ECU and High speed CAN communication
BCM, Instrument cluster and Low speed CAN communication
RF communication for REKES operation
Smart key system warning function
Smart key registration (up to 3 keys) 1.2.
3.4.
5.6.
7.8.

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1) Coding
(1) Coding process
Coding for each unit ▶
(2) Operation with/without smart key/EMS registration
Passive
LOCK/UNLOCKIgnition status
changeSTARTING THE
ENGINE
New - O 10 times
Smart key registration O O -
EMS REGISTRATION - - -
Smart key & EMS
registrationOOO
3. OPERATIONS

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(3) Coding after replacing components
When replacing smart key and SKM: Register smart key and EMS
When replacing EMS: Register EMS -
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(4) VIRGIN power control
If the SKM is not coded at all, the power control is performed as follows:
Virgin control by TM & EMS ▶
If there is no variant code value from the EMS and no value is stored in the inactive memory area
after the ignition status is changed to IGN ON, the START signal is not sent.Power control ▶
The coding is available only when the ignition status is IGN1 ON.
Engine start ▶
If the SKM is in Virgin condition, the engine cranking can be performed up to 10 times.
No variant code in memory: IGN ON -> Check variant code -> Operate START switch -> Check
ignition status -> Request START
Variant code stored in memory: Normal operation -
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Passive function actuation area: Within 1 m from the door handle
Passive tailgate open actuation area: Within 1 m from the bumper -
-Response signal
(RF transmission) Verification request signal
(LF transmission)Smart key
Passive function
operating range
Passive
trunk open
operating range
Passive function
operating range
2) Smart Key Function
(1) Passive entry actuation area
Passive entry actuation area ▶Searching for a smart key signal from the outside the vehicle is prioritized in theft deterrent mode.
Searching for a smart key signal from the inside is prioritized when the theft deterrent mode is
deactivated.
The smart key verification is performed only for the driver's or passenger's door which has received
the input from the corresponding door handle switch. If a verified smart key is found, the passive entry
function is performed.
A maximum of 3 keys can be registered. -
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- The passive LOCK/UNLOCK is performed by the input from the outside door handle switch.
(For driver's door LOCK/UNLOCK)