Transponder SSANGYONG KORANDO 2012 Service Manual

15-40
Meter clusterImmobilizer
antenna
(10) Immobilizer control
a. Overview
The Immobilizer System provides an additional theft deterrent to the vehicle in which it is installed and
prevents it from being started by unauthorized persons. The transponder integrated in the key and the
engine control unit have the same code. When the ignition key with the integrated transponder is turned
to the ON position, the ECU (Engine Control Unit) checks the crypto code of the key and, if correct,
allows the vehicle to start the engine.
For details, refer to Chapter "BCM".
b. Components
Basic components (ignition key system) ▶
Immobilizer key
Start motor
BCM
ECU
D20DTF

15-210000-00
7) Immobilizer Control
(1) Overview
The Immobilizer System provides an additional theft deterrent to the vehicle in which it is installed and
prevents it from being started by unauthorized persons. The transponder integrated in the key and the
engine control unit have the same code. When the ignition key with the integrated transponder is turned
to the ON position, the ECU (Engine Control Unit) checks the crypto code of the key and, if correct,
allows the vehicle to start the engine.
For details, refer to Chapter "BCM".
(2) Components
Conditions for cooling fan ▶
Immobilizer
antenna
Immobilizer
key
Start motor
Instrument
cluster
BCM
G20DF ECU

03-38710-01
1. SPECIFICATION
Pin No. Specification Remark
Rated voltage DC 13.5 V
-
Operating voltageDC 9.0 to 16.0 V
DC 7.0 to 18.0 V (CAN)-
Operating temperature-30 to +80°C-
Storage temperature-40 to +85°C-
TransponderFrequency134.2 KHz ± 4 KHz
-
Operating
temperature-40 to +85°C-
Max. humidity 95%-
High resistant voltage 24 V-
Dark currentBCM without SKM: 7.0 mA or less
BCM with SKM: 4.0 mA or less
All switches OFF, key removed,
all doors LOCK and in sleep
mode
Voltage drop 1.0 V or lessat pin B6 and all pins for
IN/OUT
Frequency characteristics ▶
Pin No. Specification Remark
Receive frequency433.920±0.015 MHz-
Bandwidth15KHz ± 2KHz or less-
Modulation method FSK -
Range 10M or longer (open) -

03-68
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

03-70
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 -
-
-
-
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 battery discharge warning (3) Smart key verification fail warning
When the verification is requested for ignition status change or engine starting and no verified smart key
is in the vehicle, the SKM sends the [smart key verification status] signal, which indicates that the
verification has failed, for up to 10 sec. until the verification fail conditions are deactivated.
Verification fail detection and transmission conditions ▶
When the ignition status is changed after a smart key is verified by the START switch ON input, the
SKM sends the verification status for 10 sec. -Normally, the smart key verification warning is one of the smart key fail conditions. -
Ignition status change
(OFF ->ACC) / (OFF ->IGN)/(ACC ->IGN) / (IGN -> engine ON) *
If above conditions are met again, the SKM re-verifies a smart key and sends the verification status for
another 10 sec.
When the ignition status is changed by the transponder verification while the smart key status is sent
through the BCAN, the SKM sends the smart key verification signal and also sends the transponder
verification signal for 10 sec. -
-
If low smart key battery is detected during the verification process for ignition status change or engine
start, the SKM sends the signal for [smart key battery low voltage warning] to the BCM and instrument
cluster through the BCAN for up to 10 sec. until the warning condition is deactivated.
Smart key battery discharge confirmation and deactivation ▶
If the smart key battery low voltage is confirmed, the SKM sends the smart key battery low voltage
warning signal.
If the smart key battery is in normal condition, the SKM sends the smart key battery low voltage
warning deactivation signal.
The smart key is the last used key. -
-
*
(5) Transponder verification fail warning
If a verified smart key is not found by the key verification process, the SKM sends the information that
indicates the key is not verified to the instrument cluster through the BCAN for up to 10 sec. until the
verification fail condition is deactivated.
The SKM sends the transponder verification warning when the verification has failed with the smart key
inserted into the immobilizer holder. -
Transponder verification fail detection and transmission conditions ▶
When the ignition status is changed after the transponder is verified by the START switch ON input,
the SKM sends the transponder verification status for 10 sec. -

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Ignition status change
(OFF ->ACC) / (OFF ->IGN)/(ACC ->IGN) / (IGN -> engine ON) *
If above conditions are met again, the SKM re-verifies the transponder and sends the verification
status for another 10 sec.
When the ignition status is changed by a smart key verification while the transponder verification is
processed, the SKM sends the signal for [transponder verification fail], and sends the smart key
verification status for 10 sec. -
-
(6) Transmission position warning
When the gear selector lever is in a position other than P or N with IGN ON and engine started, the
SKM sends the [gear position warning] signal to the instrument cluster through the BCAN for up to 10
sec. until the operating conditions are deactivated.
Transmission position warning deactivation ▶
When re-attempting to start with IGN1 ON and transmission in P or N -
(7) SKM error alert
The SKM sends the SKM error alert signal to the instrument cluster through the BCAN for up to 10 sec.
when an in ignition status related error or passive entry system error occurs.
SKM error transmission conditions ▶
When any of the following errors is detected and a DTC is set, the SKM sends the error alert signal for
10 sec.
B+ (power) low voltage
B+ (logic) low voltage
ACC ON fail
ACC OFF fail
IGN1 ON fail
IGN1 OFF fail
IGN2 ON fail
IGN2 OFF fail
Short circuit in START switch 1.
2.
3.
4.
5.
6.
7.
8.
9.
The SKM sends the corresponding signal only once for 10 sec. when any of the above errors is detected
with IGN OFF/ON. It sends the signal again when a new error occurs.

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(8) Brake not working alert
The SKM sends the brake not working alert signal for 10 sec. every time the ignition status is changed
after the 1st cycle (OFF-ACC-IGN-ACC-OFF) while the brake is not operated.
when the brake pedal is depressed, the system is reset and alert deactivation signal is sent.
when the 10 min. timer is terminated -
-
(9) Clutch not working alert
The SKM sends the clutch not working alert signal for 10 sec. every time the ignition status is changed
after the 1st cycle (OFF-ACC-IGN-ACC-OFF)
while the clutch is not operated.
when the clutch pedal is depressed, the system is reset and alert deactivation signal is sent.
when the 10 min. timer is terminated -
-
(10) Smart key slot detection alert
The SKM sends the smart key slot detection alert signal for 10 sec. when a smart key inserted into
the slot is detected with IGN OFF and the driver's door open. -
(11) SKM alert priority
1 Smart key out alert EXTERIOR
1
2 Smart key reminder alert EXTERIOR
3 Smart key verification fail alert INTERIOR
2 4 Transponder verification failure alarm INTERIOR
5 Smart key battery low voltage alert INTERIOR
6 Transmission position alert INTERIOR
7 SKM error alert INTERIOR
8 Brake alert INTERIOR
9 Clutch alert INTERIOR
10 Smart key slot reminder alert INTERIOR1
Warning cancellation requirements ▶
Warning cancellation requirements ▶
Warning transmission conditions ▶
Warning cancellation requirements ▶
when the smart key is removed, the alert deactivation signal is sent.
when the 10 min. timer is terminated -
-

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Indicator
(amber)
Brake warning lamp (brake fluid) ▶
ABS warning lamp ▶
Passenger air bag disable indicator ▶
Indicator
(red)
Indicator
(amber)
Indicator
(red)
EPS ▶
Indicator
(amber)
Immobilizer indicator ▶This indicator comes on when the passenger air bag OFF switch is operated.
This indicator comes on the immobilizer (transponder) is not certified.This lamp comes on when the parking brake is applied or the brake fluid
is insufficient.
If this lamp doesn't go off after the parking brake is released, check the
brake fluid level first and then fluid leakage. -
-
This warning light comes on when the ignition switch is turned to ON
and should go out if the system is normal -
This indicator comes on when the EPS system is faulty.

05-16
Indicator
(green)
Passenger seat belt reminder ▶
Left turn signal indicator ▶
Right turn signal indicator ▶
Indicator
(red)
Indicator
(green)
Indicator
(red)
Winter mode indicator(DSL only) ▶The right turn signal indicator blinks if the light switch is pushed up to the right,
and both turn signal indicators blink if the hazard warning flasher switch is
pressed.
When the mode switch is pressed, the winter mode is selected and the
winter mode indicator comes on on the instrument cluster. The winter
mode is used to start off on a slippery road with the 2nd gear. If the switch
is pressed again, the winter mode is deactivated and system returns to
standard mode.This indicator comes on when the ignition switch is turned to the "ON"
position and goes off when the passenger's seat belt is fastened.
The left turn signal indicator blinks if the light switch is pushed down to the
left, and both turn signal indicators blink if the hazard warning flasher switch
is pressed.
Smart key warning lamp ▶
Indicator
(amber)
This lamp comes on when the uncertified transponder or smart key is
detected,
SKM system is defective or there is no smart key in the vehicle.