2012 SSANGYONG KORANDO ignition

04-16
(6) Limitations/Interruption of smart key function
The SKM searches for a smart key inside the vehicle when it receives the information on entering the
theft deterrent mode from the BCM. If a normal smart key is identified, the SKM memorizes this as a
function-limited key (Silent Smart Key) or a function interrupted key (Deactivation Smart Key) according
to the conditions.
If a smart key, which outputs the door LOCK signal, is found inside the vehicle, the SKM memorizes
all the smart keys inside the vehicle as function limited keys (Silent Smart Key).
The function limited smart key provides the passive START, ignition status change and REKES
functions except the passive UNLOCK function. -
-Function limitation ▶
Function interruption ▶
How to deactivate function limited/interrupted smart key ▶
Deactivate the theft deterrent mode. -If no smart key, which outputs the door LOCK signal, is found inside the vehicle, the SKM memorizes
all the smart keys inside the vehicle as function interrupted keys (Deactivation Smart Key).
The function interrupted smart key is not available for the passive LOCK/UNLOCK, passive START,
ignition status change and REKES functions. -
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04-178712-03
3) REKES Control Function
(2) REKES UNLOCK
The SKM receives the signal for [REKES UNLOCK] 0.1 sec. after the UNLOCK button on the smart
key is turned ON, and sends this signal through the BCAN. - When the SKM receives the REKES signals by the buttons on the smart key, it transmits the
corresponding signals through the BCAN.
Switch Stage Remark
LOCK 1 step
100 ms: 1 step CMD
1500 ms: 2 step CMD
1000 ms: 3 step CMD unlocked 1 step
Tailgate open 3 step
PANIC 3 step
(3) Remote keyless tailgate open
When the SKM receives the signal for [REKES UNLOCK] by the UNLOCK button on the smart key, it
transmits this signal through the BCAN.
(1) REKES LOCK
The SKM receives the signal for [REKES LOCK] 0.1 sec. after the LOCK button on the smart key is
turned ON, and it transmits this signal through the BCAN.
When the REKES LOCK signal is received with the ACC ON, the ACC is turned OFF and the signal
for [REKES LOCK] is sent. -
- When the SKM receives the signal for [REKES LOCK] by the LOCK button on the smart key, it transmits
this signal through the BCAN.
The SKM receives the tailgate open signal 1 sec. after the tailgate open button on the smart key is
turned ON with the ignition status OFF, ACC or IGN ON, and it transmits the signal for [REKES
tailgate open] through the BCAN. - When the SKM receives the signal for [REKES tailgate open] by the tailgate open button on the smart
key, it transmits this signal through the BCAN.
Remote keyless tailgate open ▶

04-18
(4) Remote keyless panic
When the SKM receives the panic signal with the ignition status OFF, ACC ON or IGN ON, the SKM
transmits the REKES panic signal through the BCAN. The SKM transmits the signals for [REKES panic] by the panic button of the smart key to the BCM.
Panic siren mode by REKES panic control ▶ The SKM receives the REKES panic signal 1 sec. after the panic button on the smart key is turned ON
with the ignition status OFF, ACC or IGN ON, and it transmits this signal through the BCAN.Remote keyless panic ▶

04-198712-03
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 ▶

04-20
5) Start & Power Mode Control
The smart key system performs the smart key verification inside the vehicle to operate the
'Passive/Emergency start' and 'Power mode control'. It performs the following functions according to the
verification result.
Power mode control: Ignition status change
Immobilizer communication with EMS
Start request transmission to EMS -
-
-
(1) Hardware interface
Replace the input shaft speed sensor with EMM or A/T and perform the TCU initialization and
coding work. ▶
Start button
- The SKM receives the signals from the START button and changes the ignition status or
stars/stops the engine.
Immobilizer holder antenna
- The SKM communicates with immobilizer antenna to verify the smart keys. 1.
2.
Output ▶
ACC relay
- The SKM operates the ACC relay.
IGN1 relay
- The SKM operates the IGN1 relay.
IGN2 relay
- The SKM operates the IGN2 relay.
START ready display
- The SKM operates the START ready display.
ACC status display
- The SKM operates the ACC status display.
ON status display
- The SKM operates the ON status display.
LF antenna
- The SKM controls the LF antenna outputs. 1.
2.
3.
4.
5.
6.
7.

04-218712-03
(2) Ignition status change
The ignition status is changed to OFF, ACC ON, IGN ON and engine cranking by one START/STOP
button.
The SKM cuts the power for IGN2 and ACC relays while the engine is cranking as cutting the electric
load is necessary.
The SKM monitors the brake pedal status through the hardware signals.
The ignition status change is available when the engine START/STOP button is pressed.
The SKM uses the EMS (engine condition) and ABS/ESP (FR vehicle speed) signals sent through the
P-CAN bus (High Speed CAN).
When the smart key battery is discharged and the driver inserts the smart key into the immobilizer slot
in emergency mode, the smart key verification is performed if the brake or START switch is pressed
before the ignition status is changed (ACC ON, IGN ON).
Ignition status change during driving 1.
2.
3.
4.
5.
6.
7.
When the engine START/STOP switch is pressed for 3 sec. or more at more than 3 km/h, the
ignition status is changed from IGN to ACC.
If the engine START/STOP switch is pressed again, the ignition status is changed from ACC to
IGN.
The 4 vehicle speeds are abnormal (CAN signal timeout, abnormal signal):
If the engine START/STOP switch is pressed for 3 sec., the ignition status is changed from IGN
to ACC. If the switch is pressed again, the ignition status is changed from ACC to OFF (DTC
set). -
-
The SKM changes the ignition status as follows: 8.

04-22
When the ignition status is changed, the SKM communicates according to the body network
conditions as follows: 9.
OFF → ACC: Keep communicating for 5 sec.
OFF → IGN: Keep communicating
ACC → IGN: Keep communicating
IGN → Cranking: Keep communicating
Cranking→ IGN: Keep communicating
IGN → ACC: Keep communicating for 5 sec.
ACC → OFF: Keep communicating for 5 sec.
IGN → OFF: Keep communicating for 5 sec. -
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(3) Engine start
When the START 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 switch is received, the SKM sends the start
request signal through the PCAN and the smart key location signal through the BCAN to crank the
engine.
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 through the PCAN.
The SKM turns on the ACC/IGN2 relays after the engine cranking and sends the signal for [IGN after
starting] through BCAN.
When the START button is pressed and engine cranking request1 signal is sent, the EMS 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. 1.
2.
3.
4.
5.
6.
Engine cranking request1:
When the START switch is pressed briefly under a normal condition
Engine cranking request2:
When the START switch is pressed once again while the engine cranking request1 signal is sent,
OR When the START switch is pressed for 3 sec. or more -
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Starting engine while driving 7.
The engine start request signal is sent when the START 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 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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04-238712-03
(4) Engine stop
When the START button is pressed at the vehicle speed of 3 km/h or less, the SKM turns off the IGN
relay to stop the engine.
When the vehicle speed is 3 km/h or more or no speed signal is input, the SKM performs the
following functions: 1.
2.
When the START switch is pressed for 3 sec. or more at more than 3 km/h, the ignition status is
changed from IGN to ACC.
If the switch is pressed again, the ignition status is changed from ACC to IGN.
When the START switch is pressed for 3 sec. or more with no vehicle speed signal (CAN signal
timeout, abnormal signal), the ignition status is changed from IGN to ACC. If the switch is pressed
again, the ignition status is changed from ACC to OFF. -
-
When the START button is pressed and held with IGN ON, the ignition status is changed to OFF.
When the START button is pressed briefly, the ignition status is changed to ACC ON. 3.
(5) ACC ON/Power OFF
The SKM changes the ignition status to OFF from ACC ON when:
the engine START/STOP button is pressed with the brake pedal released after the ignition status is
changed from IGN ON to ACC ON.
the REKES LOCK or passive LOCK is operated with ACC ON.
the BCM sends the driver's door open signal.
12 minutes have passed with ACC ON. 1.
2.
3.
4.Except brake switch signal input
For the vehicles with A/T, when the START switch is pressed for 10 sec. or more, the ignition
status is changed to IGN ON and the engine start request signal is sent regardless of the brake
signal, provided that the initial ignition status is ACC ON and the gear selector lever is in P or N
position. *-