Hyundai Elantra Owners and Service Manuals

Hyundai Elantra: Integrated Body Control Unit (IBU) / Components and components location

Components (1)
With Smart Key

Connector Pin Information
Pin no
Connector A
Connector B
Connector C
Connector D
Connector E
1
ESCL (+)_output
-
-
-
-
2
Front heated nozzle_output
-
-
-
-
3
-
Puddle pocket lamp_output
-
Mirror folding_output
-
4
Front washer switch _Input
-
-
-

5
-
LIN(PDW)
-
-
ESCL enable_output
6
Ground_Power
R-PDW power_input
-
-
RPM_input
7
Ground_ECU
R-PDW power_output
-
-
Start relay_output
8
ESCL (-)_output
F-PDW power_output
-
-
ACC relay_output
9
Battery (+) ECU
ATM solenoid_output
-
Auto light sensor ground_output
Start feedback_input
10
Battery (+) Power
Head lamp high beam switch_input
-
Rear view camera switch_input
SSB switch2_input
11
IGN_Input
Front washer switch _Input
-
R-PDW switch_input
Trunk antenna (-)_output
12
Kiline_IMMO
Front wiper INT volume switch_input
-
P-Position_input
Interior2 antenna power(-)_output
13
-
Wiper parking switch_input
-
Passenger outside handle switch_input
-
14
-
External buzzer_output
-
Multifunction Switch ground _Input
Passenger outside handle antenna (-)_output
15
-
R-PDW switch IND_output
-
ACC_input
-
16
-
-
-
IGN2_input
-
17

-
-
Front wiper low back up switch_input
-
18

-
-
Brake switch_input
Driver outside handle antenna (-)_output
19

-
-
-
Immobilizer antenna ground_output
20

-
-
-
-
21

-
-
-
-
22

LIN 3(Rain sensor)
-
PDW option_input
-
23

Wiper power relay_output

Mirror unfolding_output
-
24

-

-
-
25

Wiper low relay_output

-
-
26

Wiper high relay_output

-
Wheel speed sensor_input
27

-

-
IGN2 relay_output
28

Fog lamp switch_input

-
IGN1 relay_output
29

Light switch_input

Auto light sensor power_output
SSB symbol illumination(+)_output
30

-

Auto light sensor signal_input
SSB switch1_input
31

-

Sunroof status_input
Trunk antenna (+)_output
32

-

ESCL unlock switch_input
Interior2 antenna power(+)_output
33

ESCL_COM

Clutch lock switch_input (MT)
-
34

EMS ECU wake up_output/Dood unlock signal_output

Driver outside handle switch_input

Passenger outside handle antenna (+)_output
35

-

B-CAN High
-
36

-

B-CAN Low
-
37



P-CAN High
-
38


P-CAN Low
Driver outside handle antenna (+)_output
39


-
Immobilizer antenna power_output
40


-
-

Without Smart Key

Connector Pin Information
Pin no
Connector A
Connector B
Connector C
Connector D
1
-
-
-
-
2
Front heated nozzle_output
-
-
-
3
-
-
-
Mirror folding_output
4
Front washer switch _Input
-
-
PDW option_input
5
-
LIN(PDW)
-
-
6
Ground_Power
R-PDW power_input
-
-
7
Ground_ECU
R-PDW power_output
-
-
8
-
F-PDW power_output
-
-
9
Battery (+) ECU
ATM solenoid_output
-
Auto light sensor ground_output
10
Battery (+) Power
Head lamp high beam switch_input
-
Rear view camera switch_input
11
IGN_Input
Front washer switch _Input
-
R-PDW switch_input
12
Kiline_IMMO
Front wiper INT volume switch_input
-
P-Position_input
13
-
Wiper parking switch_input
-
-
14
-
-
-
Multifunction Switch ground _Input
15
-
R-PDW switch IND_output
-
ACC_input
16
-
-
-
IGN2_input
17

-
-
Front wiper low back up switch_input
18

-
-
Brake switch_input
19

-
-
-
20

-
-
-
21

-
-
-
22

LIN 3(Rain sensor)
-
-
23

Wiper power relay_output

Mirror unfolding_output
24

-

-
25

Wiper low relay_output

B-CAN High
26

Wiper high relay_output

B-CAN Low
27

-

P-CAN High
28

Fog lamp switch_input

P-CAN Low
29

Light switch_input

Auto light sensor power_output
30

-

Auto light sensor signal_input
31

-

Sunroof status_input
32

-

Key solenoid_output
33

Key hall illumination_output

Start inhibit relay_output
34

EMS ECU wake up_output/Dood unlock signal_output

key in switch_input
35

-

-
36

-

-
37



Immobilizer antenna power_output
38


Immobilizer antenna ground_output
39


-
40


-

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