SsangYong Korando III (2010 year). Manual — part 459
03-120
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.
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8710-01
4) REKES Key Configuration
Battery cover
Side cover
Battery (CR2032)
Transponder
Key plate
Remote controller PCB
Battery replacement
▶
Remove the battery cover with a flat-bladed screwdriver to replace the battery.
Transponder replacement
▶
Remove the battery cover to remove the battery.
Remove the key plate after removing the rubber cover and screws.
Remove the side cover and main cover.
Replace the transponder
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-
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Main cover
Spring
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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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04-3
8712-03
Smart key module
▶
1. SPECIFICATIONS
Component
Item
Specifications
SKM unit
(Electric)
Rated voltage
12.0 V
Operating voltage
9.0 V to 16.0 V
(CAN: 6.0 V to 18.0 V)
Operation temperature
-30℃ to 80℃
Max. operating humidity
95%
Dark current
5.5 mA
Voltage drop
1.0 V or less
SKM unit
(wireless)
Receive frequency
433.920 MHz ± 0.015 kHz/PWM
Frequency bandwidth
15 kHz ± 2 kHz or less
Modulation type
FSK
(Frequency Shift Keying)
Receive distance
RF: 10 m or more (without obstacles)
LF: 1.2 m (without obstacles)
Smart key
▶
Component
Item
Specifications
Smart key
(Electric)
Operating voltage
2.7 V to 3.3 V
Operation temperature
-20℃ to 60℃
Battery type
CR2032
Smart key
(wireless)
RF (Radio
Frequency)
(transmission)
LF (Low Frequency)
(receiving)
Sending/receiving
frequency
433.92 ± 0.0125 MHz
133.3 kHz ± 0.2 kHz
Modulation type
FSK
(Frequency Shift Keying)
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