Kia Optima: Function - Relay Box (Engine Compartment). Description and Operation - Fuses And Relays - Body Electrical System - Kia Optima TF 2011-2018 Service ManualKia 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 СRТ
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 Lock Switch Input

Door Unlock Status Input

Door Unlock Status Input

P/WDW DR Lock/Unlock Input

P/WDW DR Lock/Unlock Input

Brake Switch Input

Brake Switch Input

Seat Belt Switch Input

Seat Belt Switch Input

Trunk Switch Input

Trunk Switch Input

Hood Open Switch Input

Hood Open Switch Input

CANADA DRL Option

CANADA DRL Option

INHIBIT СRТ Input

INHIBIT СRТ Input

Burglar Alarm Start Relay

Burglar Alarm Start Relay

Burglar Alarm Horn Relay

Burglar Alarm Horn Relay

Door Lock/Unlock Relay

Door Lock/Unlock Relay

Trunk LID Release Relay Output

Trunk LID Release Relay Output

Power Window Relay Output

Power Window Relay Output

Defogger & Front Deicer Relay

Defogger & Front Deicer Relay

Head Lamp Control

Head Lamp Control

IPS Lamp Control

IPS Lamp Control

Hazard & Turn Signal

Hazard & Turn Signal


Description
Network ConfigurationThe Network of the SJB(Smart Junction Box) consists of Low speed CAN as shown in the following figure. Termination ResistorThe cluster has CAN termination resistor. It is p ...

Relay Box (Engine Compartment). Repair procedures
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See also:

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Chart 3
...

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1. Remove the trunk room lamp cover using flat blade screw driver. 2. After replacement of bulb, install the cover. ...

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