Start stop SSANGYONG KORANDO 2013 Owner's Manual

Engine starting
When the START/STOP 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/STOP switch is received, the SKM sends the
start request signal through the P-CAN and the vehicle power status signal to the BCM through the B-
CAN.
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 (ECU) through the P-CAN. 1.
2.
3.
4.
EMS (ECU)Engine rpm, engine cranking/stop/running/loaded
TCUGear selector lever position: P, N
ABS/ESPVehicle speed signal (wheel speed sensor on each wheel)
The SKM turns on the ACC/IGN2 relays after the engine cranking and sends the signal for IGN after
starting to the BCM through the B-CAN.
When the START/STOP button is pressed and engine cranking request1 signal is sent, the EMS
(ECU) 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. 5.
6.
Engine cranking request1
(engine start after
warming up)When the START/STOP button is pressed briefly under the start
conditions, the vehicle starts to warming up and then the engine is started
after a certain amount of time (warming up indicator ON to OFF).
Engine cranking request2
(engine start without
warming up)When the START/STOP switch is pressed once again while the engine
cranking request1 signal is sent, the engine is started (regardless of
warming up indicator)
It can be delayed by several seconds according to the engine
coolant temperature.
Starting engine while driving 7.
The engine start request signal is sent when the START/STOP 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/STOP
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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No engine operation
When the START/STOP 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.
Vehicle status Conditions
3 km/h or faster - When the START/STOP switch is pressed for 3 seconds
or more, 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.
Abnormal vehicle speed
(No or abnormal CAN signal)- When the START/STOP switch is pressed for 3 seconds
or more, 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 Power OFF.
(DTC set)
When the START/STOP button is pressed and held with IGN ON, the ignition status is changed to
OFF. When the START/STOP button is pressed briefly, the ignition status is changed to ACC ON. 3.
ACC ON to 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 signal is input with ACC ON.
the driver door is opened with ACC ON.
(Driver door open signal input through B-CAN)
12 minutes have passed with ACC ON. 1.
2.
3.
4.Condition for starting request transmission 8.
ACC ON: Gear selector lever (P/N), Brake switch ON, START/STOP switch signal
IGN ON: Vehicle in stationary, Gear selector lever (P/N), Brake switch ON, START/STOP
switch ON -
-
Condition for canceling starting request 9.
At engine starting completed -

9. ESCL CONTROL
ESCL lock/unlock is not performed at ESCL virgin mode.
The SKM does not carry out the ESCL LOCK control if the engine is running with IGN ON or the
vehicle speed is 3 km/h or higher.
All the ESCL functions including START/STOP switch is disabled during anti-scanning flag bit set. -
-
-
If the smart key is pressed with power off, the electric steering motor performs the steering column
unlock. In some cases, power transition is carried out to ACC or IGN ON.
If the power transition and start is not possible after retry to LOCK or UNLOCK operation, the power
transition and start is not still possible after automatic retry and the warning lamp comes on. -
-
1) ESCL LOCK Control
When the ESCL is unlocked and the followings are met at normal condition:
If the driver door is open or closed with ignition key OFF, the electric steering motor performs the
steering column lock.
If the theft deterrent mode is activated by the LOCK signal from the passive or REKES key when
The ESCL LOCK is performed after 60 seconds since the ignition key is turned to B+ from
-
-
-
2) ESCL UNLOCL Control
When the ESCL is locked and the followings are met at normal condition:

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3) ESCL Retry Control
When the UNLOCK retry occurs after ESCL LOCK command, the ESCL LOCK is performed. 1.
2.
The UNLOCK retry is possible up to 2 times automatically. If the UNLOCK retry occurs 3 times in
succession, the ESCL NOT LOCKED warning is triggered.
Reactivates when the ESCL LOCK conditions are met. -
-
When the LOCK retry occurs after ESCL UNLOCK command, the ESCL UNLOCK is performed. 4.
The LOCK retry is possible up to 2 times automatically. If the LOCK retry occurs 3 times in succession,
the ESCL JAM warning is triggered.
Reactivates when the ESCL UNLOCK conditions are met by pressing the START/STOP switch. -
-
When the UNLOCK retry occurs after ESCL UNLOCK command, the command will be overridden
without retry. 5.
After the command is overridden, the ESCL JAM warning is triggered.
Reactivates when the UNLOCK conditions are met by pressing the START/STOP switch after
ESCL LOCK. -
- When the LOCK retry occurs after ESCL LOCK command, the command will be overridden without
retry. 3.
ESCL NOT LOCKED warning is triggered.
Reactivates when the UNLOCK conditions are met by pressing the START/STOP switch. -
-

10. START/STOP SWITCH CONTROL
1) Power Status
Ignition status indicator on START switch
Status Turning-ON conditions
OFF IGN OFF, IGN ON & engine ON
GreenEngine can be started by START/STOP switch operation/Engine is cranking
(IGN OFF & brake switch ON, ACC ON & brake switch ON, IGN ON & brake
switch ON)
Amber ACC ON
Red IGN ON & engine OFF, error
START switch indicator output
Powersta
tusPower OFF
ACC ON IGN
ONEngine
start
statusEngine
can be
startedError Remarks
Door
closedDoor
open
Figure
Indicator
statusOFF OFF Amber Red OFF GreenRed
Flash
Illuminatio
n
controlOFF TIME Controlled by SKM LED
The indicator flashes 5 times at intervals of 0.5 sec. ON/0.5 sec. OFF when an error occurs.
When all the doors are closed with B+, the indicator does not flash. -
-
START/STOP switch indicator control
START/STOP switch indicator
ON OFFDoor coupled function
When the driver door is opened, the indicator comes
on (the indicator remains on while the door is open).
When the room lamp is turned off, the indicator goes
out immediately.
The indicator goes out 10 seconds after the driver door
is closed.
The indicator is reset when the driver door is opened.
Tail lamp coupled function -
1)
2)
3)
4)
-

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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. for up to 10
seconds. 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/STOP 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 seconds.
When the ignition status is changed by the transponder verification while the smart key status is sent
through the B-CAN, the SKM sends the smart key verification signal and also sends the transponder
verification signal for 10 seconds. -
-
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 B-CAN 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 B-CAN for up to 10 seconds until
the warning 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/STOP switch ON
input, the SKM sends the transponder verification status for 10 sec. -

Ignition status change*
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) ESCL JAM warning
The SKM transmits the warning active command to the BCAN through the BCAN signals such as ESCL
NOT LOCKED warning signal or ESCL JAM warning signal within 10 seconds or until the active
command deactivation conditions will be met, if jam is occurred when the electric steering motor is
locked/unlocked.
Failure Detecting Conditions
When the UNLOCK retry occurs after ESCL LOCK command, the ESCL LOCK is performed.
- The UNLOCK retry is possible up to 2 times automatically. If the UNLOCK retry occurs 3 times
in succession, the ESCL NOT LOCKED warning is triggered.
- Reactivates when the ESCL LOCK conditions are met.
When the LOCK retry occurs after ESCL LOCK command, the command will be overridden without
retry.
- After the command is overridden, the ESCL NOT LOCKED warning is triggered.
- Reactivates when the LOCK conditions are met by pressing the START/STOP switch after
ESCL UNLOCK.
When the LOCK retry occurs after ESCL UNLOCK command, the ESCL UNLOCK is performed.
- The LOCK retry is possible up to 2 times automatically. If the LOCK retry occurs 3 times in
succession, the ESCL JAM warning is triggered.
- Reactivates when the ESCL UNLOCK conditions are met by pressing the START/STOP
switch.
When the UNLOCK retry occurs after ESCL UNLOCK command, the command will be overridden
without retry.
- After the command is overridden, the ESCL JAM warning is triggered.
- Reactivates when the UNLOCK conditions are met by pressing the START/STOP switch after
ESCL LOCK. 1.
2.
3.
4.

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(9) SKM error alert
The SKM sends the SKM error alert signal to the instrument cluster through the B-CAN 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
START/STOP switch short circuit 1.
2.
3.
4.
5.
6.
7.
8.
9.ESCL JAM Warning Deactivation
met again by pressing the START/STOP switch to change the ignition status within 10 seconds or after
10 seconds triggering the warning.
(8) ESCL FAIL warning
The SKM monitors the ESCL and transmits the warning active command to the BCAN for 10 seconds
Failure Transmitting Conditions
ESCL bolt status failure
ESCL no response error
- No response or incorrect response from ESCL 3 times in succession
Status mismatch
- Mismatch between ESCL bolt status and micro switch status
ESCL anti-scanning error
- Verification fails 2 times in succession 1.
2.
3.
4.

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Start motor
12. SKM IMMOBILIZER SYSTEM
1) System Description
The immobilizer system prevents the vehicle theft by allowing only the authorized key to start the engine.
The transponder inside the key communicates with the SKM (immobilizer slot) and EMS (ECU) through
P-CAN communication, and the system permits the engine to start after confirming the encrypted
coding.
When the START/STOP switch is pressed with the smart key inserted into the immobilizer slot because
of the smart key battery discharge, the SKM communicates with the EMS (ECU) through P-CAN, and
the ECU starts to control the engine only the signal is valid.
A valid key verification time is provided for 10 seconds and the engine can be started during this time. If
pressing the START/STOP switch again after this 10 seconds, the key verification process is performed
again.
2) Configuration
Emergency slot
Smart key
SKM
EMS (ECU)

3) Operating Process
Key verification can be divided into two types, immobilizer key verification and smart key verification. The
immobilizer verification is applied for the SKM system, and verifies the transponder built in the smart key.
When the smart key is inserted into the slot, the verification is carried out, overriding the RF signal from
the smart key.
The power is supplied to the slot when the START/STOP switch is pressed with the smart key inserted
into the slot, and the smart key transponder verification is carried out by the transponder communication.
Once the key is verified, a valid key verification time is provided for 10 seconds and the engine can be
started by pressing the START/STOP switch during this time. If pressing the START/STOP switch after
this 10 seconds, the key verification process is performed again.
When the ignition is turned ON, the EMS (ECU) sends the challenge message to the SKM through
the P-CAN. (This is to verify whether the transponder of the smart key is valid. If the verification fails,
it transmits the re-verification signals 3 times for 2 seconds. If 3rd re-verification fails, the verification
is deactivated for 10 seconds and re-activated after that.)
The immobilizer slot of the SKM system sends the encrypted cod to the transponder, and the
transponder re-sends the encrypted code to the immobilizer slot.
The encrypted sent to the immobilizer slot is re-sent to the SKM.
The SKM compares this code with the encrypted code randomly transmitted by the internal logic.
(System compares the signal from transponder and encrypted signal from the immobilizer control
unit)
Only when the two signals are identical, it recognizes the key as the verified one and transmits the
positive message to the ECU.
The ECU enables the engine to be started. 1.
2.
3.
4.
5.
6.