SsangYong Korando III (2010 year). Manual - part 464

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Component

Pre-verification timer

Immobilizer verification timer

Deactivation 

conditions

If any condition for pre-verification timer and immobilizer verification timer is met, no verification process 
is required for 30 seconds after the each verification process has been completed.

Operation before pre-verification timer

Passive LOCK/UNLOCK

REKES LOCK/UNLOCK

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Ignition status after immobilizer verification

The immobilizer verification has been completed when the engine starts.

The immobilizer verification is not deactivated until the ignition is turned to ON, OFF or ACC 

ON.

The immobilizer is not deactivated when the key out warning condition is met while the engine 

is running.

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8. START & POWER MODE CONTROL

The ignition status is changed to OFF, ACC ON, IGN ON and engine cranking by one START/STOP 

switch.

30 seconds has been passed after 

the immobilizer verification timer

IGN1 OFF

No smart key is found inside the 

vehicle with all doors closed after any 

door has been opened and then 

closed.

1. 

2. 

3.

30 seconds has been passed after 

the pre-verification timer

Door handle switch ON

IGN ON

Theft deterrent mode 

activation/deactivation

Door status changed (open/closed)

1. 

2. 

3. 

4. 

5.

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Power control and engine start diagram

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Engine starting

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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

TCU

Gear selector lever position: P, N

ABS/ESP

Vehicle 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

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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

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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

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Condition for canceling starting request

9.

At engine starting completed

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