BCM Connectors

Fig 1: BCM Connector Terminals

Courtesy of HYUNDAI MOTOR CO.

BCM CONNECTOR REFERENCE

PIN NO.	Connector A	Connector B	Connector C
1	B+	CRASH INPUT	Power Window Relay
2	Front DEICER SW	-	-
3	Passenger Seat Belt SW	SAVE CODE	Front FOG Relay
4	Driver Seat Belt SW	K_LINE	-
5	Auto Light SW	WASHER SW	Wiper Relay
6	Head Lamp SW	Wiper INT SW	Tail GATE Relay
7	Tail SW	MIST SW	Horn Relay
8	Rear FOG SW	IGN2	Hazard Relay
9	Front FOG SW	-	START INHIBIT Relay
10	RR SBR BUZZER SIGNAL	Power Window Door Unlock SW	Defogger Relay
11	SPEED SENSOR	Power Window Door Lock SW	DEICER Relay
12	IGN1	Passenger Door SW	Door Unlock Relay
13	Defogger SW	Driver Door SW	-
14	Driver Door Unlock SW	Rear RIGHT Door SW	Door Lock Relay
15	Passenger Door Unlock SW	Rear LEFT Door SW	KEY HOLE ILLUMINATION
16	Rear RIGHT Door Unlock SW	Tailgate SW	Tail Lamp Relay
17	Tailgate Open SW	HOOD SW	Safety Power Window ECU
18	Rear LEFT Door Unlock SW	KEY IN SW	Auto Light Power
19	Driver Door KEY LOCK SW	-	Auto Light SIGNAL
20	Driver Door KEY Unlock SW	Passenger Door KEY LOCK SW	ALT_L
21	Passenger KEY Unlock SW		INTT
22	-		Auto Light GROUND
23	Power2 GROUND		Passenger Seat Belt INDICATOR
24	Power1 GROUND		Driver Seat Belt INDICATOR
25			OVER SPEED INDICATOR
26			-
27			-
28			-
29			-
30			-
31			Head Lamp Relay
32			Room Lamp

Terminal Voltage

TERMINAL VOLTAGE CHART

Function	Pin Name	State	Voltage Level
Function	Pin Name	State	Low Level	High Level
Analog Input	B+	8 V ~ 16 V	-	-
	Auto Light Signal	0 V ~ 5 V	-	-
	Int T	0 V ~ 5 V	-	-
	IGN1	8 V ~ 16 V	-	-
Logic Input	IGN2	OPEN/ON	Below 1 V	Over 8 V
	Washer SW	OPEN/ON	Below 1 V	Over 8 V
	Wiper Int SW	OPEN/ON	Below 1 V	Over 8 V
	Mist SW	OPEN/ON	Below 1 V	Over 8 V
	Key In SW	OPEN/ON	Below 1 V	Over 6 V
	Driver Door Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Passenger Door Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Rear Left Door Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Rear right Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Tailgate Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Hood SW	OPEN/ON	Below 1 V	Over 6 V
	Tailgate open SW	OPEN/ON	Below 1 V	Over 6 V
	Rear Left Door SW	OPEN/ON	Below 1 V	Over 6 V
	Rear Right Door SW	OPEN/ON	Below 1 V	Over 6 V
	Driver Door SW	OPEN/ON	Below 1 V	Over 6 V
	Passenger Door SW	OPEN/ON	Below 1 V	Over 6 V
	Driver door Key Lock SW	OPEN/ON	Below 1 V	Over 6 V
	Driver door Key Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Passenger Door Key Lock SW	OPEN/ON	Below 1 V	Over 6 V
	Passenger Door Key Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Power window Door Lock SW	OPEN/ON	Below 1 V	Over 6 V
	Power window Door Unlock SW	OPEN/ON	Below 1 V	Over 6 V
	Defogger SW	OPEN/ON	Below 1 V	Over 6 V
	Deicer SW	OPEN/ON	Below 1 V	Over 6 V
	Passenger Seat Belt SW	OPEN/ON	Below 1 V	Over 6 V
	Driver Seat Belt SW	OPEN/ON	Below 1 V	Over 6 V
	Auto Light SW	OPEN/ON	Below 1 V	Over 6 V
	Head Lamp SW	OPEN/ON	Below 1 V	Over 6 V
	Tail SW	OPEN/ON	Below 1 V	Over 6 V
	Front Fog SW	OPEN/ON	Below 1 V	Over 6 V
	Crash Input	OPEN/ON	Below 1 V	Over 6 V
	Push Knob SW	OPEN/ON	Below 1 V	Over 4 V
Frequency	Speed Sensor	OPEN/ON	Below 1 V	Over 6 V
Communication	CODE_SAVE	OPEN/ON	Below 1 V	Over 4 V
Communication	K LINE	OPEN/ON	Below 1 V	Over 6 V