Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSKIA2015FORTE EXREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULE (BCM)DESCRIPTION AND OPERATIONFUNCTION

2015 Kia Forte EX

Description And Operation: Function

2015 Kia Forte EXSECTION Function

Function	Description
Function	Input	Output
Front Washer & Wiper	IGN2 On & Washer S/W On and Off	Controlling Wiper Rly for 2.5~3.8 sec.
Front INT Wiper	IGN2 On & Front Wiper Int S/W On	Controlling Wiper Rly On/Off with 2.2~10 sec period depending on INT_Volume (5Step)
Front MIST Wiper	IGN2 On & Mist S/W On	Controlling Wiper Rly On during Mist S/W On (700msec)
DRV Seatblet Reminder	IGN On while belt off	Seat Belt Indicator blinking and buzzer warning for 6 sec.
	IGN On while belt on	Seat Belt Indicator for 6 sec. and warning buzzer Off
	IGN1 On & Drv sea belt Sw [Off→On]	Seat Belt Indicator Off and Buzzer Off
	IGN On & Vehicle Speed > 10km/h while belt off	Seat Belt Indicator and warning buzzer pattern starting (PATTERN: 6sec on/24sec off X 11times)
	IGN On & Vehicle Speed > 5km/h while belt off	Seat Belt Indicator blinking and buzzer warning for 6 sec.
	Pattern starting while Vehicle Speed < 5km/h	6 sec. after Seat Belt Indicator Off and Buzzer Off
Key Operated Warning	(Key In or SMK ACC) S/W On & Driver door open	Key Operated Buzzer Warning starting
Parking Start Warning	IGN1 On & Parking Brake S/W On & Vehicle Speed > 5km/h	Parking Brake Buzzer Warning Starting
PAS/RPAS Warning	Gear Position R and PAS/RPAS Sensors detecting warning	PAS/RPAS Warning Starting according to warning level from PAS/RPAS Sensors
Power Window/Safety Power Window	IGN1 On	Power Window/Safety Power Window enable all the time
	IGN1 Off	30sec. After IGN 1 turned off, Power Window/Safty Power Window disable
	less than 30 sec. after IGN1 turned off, and Drv Door Open	Power window/Safty Power Window disable immediately
Rear Defogger/Front Deicer	IGN1 On & Alternator On & Defogger S/W On	Defogger On & Deicer On for 20 min.
Room Lamp	Any Door Open	Room Lamp On for 20min.
	All Door Closed & Key [On→Off] & Any Door Unlock	Room Lamp On for 30sec.
	All Door Closed & Key [On→Off] & All Door Lock	Room Lamp Off
	Tx Unlock	Room Lamp On for 30sec.
	Tx Lock while Room Lamp On	Room Lamp Off
IGN Key Holl Illumination	IGN1 Off & Door open	Key Illumi Lamp On for 20min.
IGN Key Holl Illumination	IGN1 Off & Door [open→close]	Key Illumi Lamp On for 30sec.
Key Inter Lock	IGN1 On or ACC On & Key inter lock S/W On	Key Solenoid On
ATM Shift Lock	IGN1 On & Inhibit P On & Brake S/W On	ATMSOL On
Tail Lamp	Tail lamp S/W On	Tail Lamp On
Tail Lamp Auto Cut	Key In & Tail S/W On → Key Off → Drv Door Open	Tail Lamp Off
Tail Lamp Auto Cut	key In & Tail S/W On → Key Off → Drv Door Open → Tail S/W [Off→On]	Tail Lamp On
Auto Light	IGN1 On & Autolight S/W On with day light condition	Tail lamp Off, Headlamp Off
	IGN1 On & Autolight S/W On with night light condition	Tail lamp On, Headlamp On
	IGN1 on & Autolight S/W on with day light condition → night light condition	12sec. after sensing night light condition, Tail lamp On and Headlamp On
	IGN1 on & Autolight S/W on with night light condition → day light condition	12sec. after sensing day light condition, Tail lamp Off and Headlamp Off
Head Lamp	IGN2 On & Headlamp S/W On	Head Lamp On
Escort	IGN2 On, HeadLamp S/W On → IGN Off	Head Lamp On & Tail Lamp On for 5min.
Escort	IGN2 On, HeadLamp S/W On → IGN Off → Driver Door Open → Drive Door Close	Head Lamp On for 15sec, and Tail Lamp On for 15sec.
Welcome	Headlamp S/W On & All Door Closed & All Door Locked & Key Off & TX Unlock	Headlamp On & Tail lamp On for 15 sec.
	Headlamp S/W On & All Door Closed & All Door Locked & Key Off & TX Unlock → TX Lock before 15 sec timer expirsed	Headlamp Off just after TX Lock
	Autolight S/W On & night light condition & All Door Closed & All Door Locked & Key Off & TX Unlock	Headlamp On & Tail lamp On for 15sec.
DRL	IGN2 On & Alternator On and DRL Option On & H/Lamp S/W Off & Front fog Off	DRL On
	IGN2 On & Alternator On and DRL Option On & Tail lamp S/W Off	DRL On
	IGN2 On & Alternator On and DRL Option On & Tail lamp S/W [Off→On]	DRL Off
Front Fog Lamp	Front Fog S/W On when IGN2 On & Tail lamp On	Front Fog Lamp on
Rear Fog Lamp	Rear Fog S/W On when IGN2 On & Tail Lamp On & Front Fog Lamp On	Rear Fog Lamp on
Rear Fog Lamp	Rear Fog S/W On when IGN2 On & Tail Lamp On & HeadLamp On	Rear Fog Lamp on
Puddle Lamp/Pocket Lamp	SMK Option & Tx UnLock	Puddle Lamp On
Puddle Lamp/Pocket Lamp	SMK Option & Tx Lock	Puddle Lamp Off
AV Control	Autolight sensing with day light condition	AV Tail On
AV Control	Autolight sensing with night light condition	AV Tail Off
Central Lock/Unlock	P/WDW Lock S/W On or Tx Lock	All Door Lock
Central Lock/Unlock	P/WDW Unlock S/W On or Tx Unlock	All Door Unlock
Key Reminder	Key On & Driver/Assist door Open & P/WDW Lock S/W On	All Door Unlock. If knob keeps being in lock, BCM retries unlock 3 times
Key Reminder	Key On & Driver/Assist Door Open & Driver/Assist Knob changes unlock → lock	All Door Unlock. If knob keeps being in lock, BCM retries unlock 3 times
Passive Reminder	Passive Reminder signal received from SMK	All Door Unlock and Buzzer warning starts
Crash Unlock	Key On & Crash Signal received	All Door Unlock for 5 sec.
Speed Sensing Auto door Lock	IGN1 On & Alternator On & Any Door Unlock & Vehicle Speed >15km/h	All Door Lock
Speed Sensing Auto door Lock	IGN1 On & Alternator On & Vehicle Speed >15km/h & All Door Lock → Any Door unlock	All Door Lock
Shift-Lever Auto door Unlock	IGN1 On & Alternator On & Shift-Lever Position not [P] → [P]	All Door Unlock
Key Off Auto Door Unlock	Any Door Lock & Key [In] → [Off]	All Door Unlock
Tail Gate Release	All Door Unlock & Tail Gate Open S/W On	Tailgate Release
Tail Gate Release	Passive Tailgate signal received	Tailgate Release
Two Turn Unlock	Tx Unlock & Tx Unlock It Again after 4sec	Drv Door Knob Unlock
Two Turn Unlock	Tx Unlock & Tx Unlock It Again in 4sec	All Door Knob Unlock
Security Indicator	Tx Lock & after 30sec (Burglar Alarm State - ARM)	0.32sec On/2sec Off
Outside Mirror Auto Folding/Unfolding	Pwdw Mirror S/W Auto Position & Tx Unlock	Mirror Unfold
Outside Mirror Auto Folding/Unfolding	Pwdw Mirror S/W Auto Position & Tx Lock	Mirror Fold
Sunroof Open	SunRoof Open State → IGN Off → Drv Door Open	SunRoof Open Warning By Cluster 7sec
Navigation Wakeup	Key Out & Tx Unlock/Passive Unlock received	Navigation Wakeup Signal sends No re-send within 1 min.
Anti Theft	All Door Closed & Key Off & Tx Lock & All Door Closed	Armwait for 30 sec. Armed after 30 sec. without any interruptions
Anti Theft	[Arm state] Door open without Tx unlock/Passive Unlock signal	Horn activates, Hazard lamp blinks
Panic	Tx Panic	Horn activates, Hazard lamp blinks
Horn Answer Back	Tx Lock & Tx Lock It Again in 4sec	Horn On (0.1sec)

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.