2013 SSANGYONG KORANDO ignition

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4. WITH SKM VS. WITHOUT SKM
BCM (BODY CONTROL MODULE)
BCM (Body Control Module) inputs/outputs data from various switches, sensors, and other modules
through the hard wire and CAN communication, and controls the body and electronic system of the
vehicle.
For the vehicles with SKM, the SKM unit communicates with BCM through B-CAN. It sends the door
LOCK/UNLOCK signal by smart key, theft deterrent mode signal, and passive entry signal, etc. to the
BCM to control each module. The signals for engine running and stopping controls are sent to the EMS
(ECU) through the P-CAN.
For the vehicles without SKM, the BCM receives door LOCK/UNLOCK signal by smart key, theft
deterrent mode signal, and passive entry signal, etc. directly from the modules to control them. The
BCM controls the engine running and stopping by sending the corresponding signals to the EMS (ECU)
after verifying the ignition key. The controls for other modules may vary depending on the vehicle
specifications.

Windshield wiper MIST operation
The ignition is turned ON.
The MIST switch is turned ON for 0.1 seconds or more.
The wiper LO/HI relay is activated 0.1 seconds (T1) after the MIST switch is turned ON.
The wiper LO relay is deactivated when the MIST switch is turned OFF and the wiper motor parking
signal is input. A.
B.
C.
D. Operation 1.
The wiper HI relay is activated when the MIST switch signal is input. If no signal from the MIST
switch is input, the wiper LO relay is activated.

Windshield washer switch coupled windshield wiper operation
The ignition is turned ON.
When the windshield washer switch is turned ON for 0.6 seconds or more (T2), the windshield
washer motor is activated.
The windshield wiper LO relay is activated 0.5 seconds (T1) after the windshield washer switch is
turned ON.
When the windshield washer switch is turned OFF, the windshield wiper LO relay is deactivated after
the windshield wiper motor rotates 3 times (T3). A.
B.
C.
D. Operation 1. (washer switch pressed for 0.1 to 0.59 seconds)

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Windshield washer switch coupled windshield wiper operation (during intermittent
windshield wiper)
The ignition is turned ON with the wiper AUTO switch ON.
The windshield wiper LO relay is activated 0.5 seconds (T1) after the windshield washer switch is
turned ON for less than 0.6 seconds (T2). A.
B. Operation 1. (windshield washer switch pressed for 0.1 to 0.59 seconds)
When the windshield washer switch is turned OFF, the windshield wiper LO relay is deactivated
after the windshield wiper motor rotates once (T5), and then the windshield wiper is operated
intermittently after the rest time (T6). -
The ignition is turned ON with the wiper AUTO switch ON.
The windshield wiper LO relay is activated 0.5 seconds (T1) after the windshield washer switch is
turned ON for 0.6 seconds or more (T3). C.
D. Operation 2. (windshield washer switch pressed for 0.6 seconds or more)
When the windshield washer switch is turned OFF, the windshield wiper LO relay is deactivated
after the windshield wiper motor rotates 3 times (T4), and then the windshield wiper is operated
intermittently after the rest time (T6). -

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Rear washer motor control
The ignition is turned ON.
The rear washer motor is activated when the rear washer switch is turned ON.
The rear washer motor is deactivated when the rear washer switch is turned OFF. A.
B.
C. Operation 1.
Operating process
- IGN ON
Priority of operation: Windshield washer switch > Rear washer switch.

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Operating process
BCM and rain sensor system diagram
Data recognition time
The LIN communication is established when the ignition is turned ON, regardless of the wiper and light
switch operation. Then the function for the LIN data is carried out with the wiper AUTO switch or AUTO
light switch in the AUTO position.
The data from the rain sensor is recognized as 2 consecutive data.
Operation when data is recognized
Data OFF: Lo/HI relay output OFF
Low speed signal: LO relay output ON (ON for at least 1 revolution), HI relay output OFF
High speed signal: HI relay output ON (ON for at least 1 revolution), LO relay output ON
The washer input is overridden during continuous operation of wiper. (washer coupled wiper operation
during intermittent operation)

Power-up reminder wiper
The wiper AUTO switch is in the ON position.
The ignition is turned ON, and then OFF, and then ON again.
The windshield wiper LO relay is not operated. A.
B.
C. Operation 1.
The position of the wiper AUTO switch is changed to the ON from the OFF position with IGN ON.
The wiper motor rotates once (T1) initially when the windshield wiper LO relay is activated, regardless of
the rain sensor communication. D.
E. Operation 2.
The ignition is turned ON with the wiper AUTO switch in the ON position.
The windshield wiper LO relay is not operated. F.
G. Operation 3.
(The rain sensor did not detect rain drops after Operation 2.)
Operation 4.
(The rain sensor detects rain drops after Operation 2.)
The ignition is turned ON with the wiper AUTO switch in the ON position.
The windshield wiper LO relay is operated. H.
I.

Wiper LO/HI control
When front or rear washer signal is input during the wiper LO/HI operation, the front or rear washer
motor is activated.
The AUTO washer input is overridden during wiper LO/HI operation. A.
B. Operation 1.
When the signal from the wiper LO/HI switch is received, the wiper LO/HI relay is turned ON/OFF.
(The wiper LO relay is always activated when the HI relay is activated.)
If the ignition turned OFF while the wiper is operated, the wiper stops operating when the wiper
motor parking signal is input.
If no wiper motor parking signal is input during the wiper LO/HI operation, the wiper relay continues
working. (If no wiper parking signal is input for 3 seconds of wiper AUTO operation, wiper relay is
deactivated after 5 seconds - failure notification)
When the ignition is turned OFF during the wiper HI operation, the wiper is operated in LO mod and
then returns to the parking position. -
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