Kia Optima: Function

Function Requirements

The BCM controls IPS and relay on the SJB. For example, if BCM requests head lamp low beam control, then BCM requests related lamp control at one time.

Signal Flow Diagram

This chapter defines signal between SJB and peripheral electrical apparatus in the form of signal flow diagram. Control of the IPS and relay is required by BCM. Following figure expresses power source that is operating power condition

Input signal

No	Switch  Input
1	IGN1
2	IGN2
3	Driver S/Beltelt switch
4	Assist S/Beltelt switch
5	Driver door unlock switch
6	Assist door unlock switch
7	RL door unlock switch
8	RR door unlock switch
9	Driver door switch
10	Assist door switch
11	RL door switch
12	RR door switch
13	Driver&Assist door key lock
14	Driver door key unlock
15	Assist door key unlock
16	Hood switch
17	P/W Driver lock switch
18	P/W Driver unlock switch
19	T/signal LH switch
20	T/signal RH switch
21	Hazard switch
22	Trunk switch
23	Trunk release switch
24	Trunk lid HDL switch
25	Brake fluid sensor
26	Parking brake switch
27	Multi function switch
28	Inhibit ‘R’
29	CANADA DRL GND
30	HID option
31	RHD option

Output signal

No	Relay Control
1	B/Alarm relay
2	B/Horn relay
3	RR HTD relay
4	Driver door unlock relay
5	Deicer relay
6	Trunk lid relay
7	Rear window main relay
8	Sound relay
9	Door lock relay
10	Door unlock relay

No	IPS Control
1	H/Lamp HI LH
2	H/Lamp HI RH
3	H/Lamp LO LH
4	H/Lamp LO RH
5	Front fog LP LH/RH
6	External Tail lamp LH
7	External Tail lamp RH
8	T/signal LP FL
9	T/signal LP FR
10	T/signal LP RL
11	T/signal LP RR
12	INT Tail lamp LP
13	S/Belt LP LH
14	S/Belt LP RH
15	DRL

Door Switch Input

Door Lock Switch Input

Door Unlock Status Input

P/WDW DR Lock/Unlock Input

Brake Switch Input

Seat Belt Switch Input

Trunk Switch Input

Hood Open Switch Input

CANADA DRL Option

INHIBIT ‘R’ Input

Burglar Alarm Start Relay

Burglar Alarm Horn Relay

Door Lock/Unlock Relay

Trunk LID Release Relay Output

Power Window Relay Output

Defogger & Front Deicer Relay

Head Lamp Control

IPS Lamp Control

Hazard & Turn Signal