Hyundai i-30: ABS (Anti-Lock Brake System) / Schematic diagrams

Hyundai i30 (PD) 2018-2024 Service Manual / Brake System / ABS (Anti-Lock Brake System) / Schematic diagrams

Schematic Diagrams
[Without EPB]

[With EPB]

Termianal Function
[Without EPB]

Pin No
Description
Current
Max
Min
13
Ground for recirculation pump
39 A
10 A
1
Voltage supply for pump motor
39 A
10 A
25
Voltage supply for solenoid valves
15 A
2 A
38
Ground for solenoid valves and ECU
15 A
2 A
22
FL Wheel speed sensor signal
16.8 mA
5.9 mA
33
RL Wheel speed sensor power
16.8 mA
5.9 mA
19
RR Wheel speed sensor power
16.8 mA
5.9 mA
18
FR Wheel speed sensor power
16.8 mA
5.9 mA
6
FR Wheel speed sensor signal
16.8 mA
5.9 mA
14
CAN LOW
30 mA
20 mA
34
FL Wheel speed sensor power
16.8 mA
5.9 mA
20
RL Wheel speed sensor signal
16.8 mA
5.9 mA
32
Voltage for hybrid ECU
1 A
500 mA
31
RR Wheel speed sensor signal
16.8 mA
5.9 mA
30
Brake light switch
10 mA
5 mA
26
CAN HIGH
30 mA
20 mA
27
Wheel speed sensor output
Open Draim
4
ESS output
20mA
5mA
23
Clutch switch (MT Only)
10 mA
5 mA
10
Parking brake switch
10 mA
5 mA
21
L-CAN LOW
30 mA
20 mA
9
L-CAN HIGH
30 mA
20 mA

[With EPB]

Pin No
Desciption
Current
Max
Min
1
Voltage supply for pump motor
39A
10A
2
RR EPB motor power
30A
-
3
RR EPB motor ground
30A
-
4
-
-
-
5
Local CAN High
30 mA
20 mA
6
Electric parking brake signal 1
20 mA
-
7
Electric parking brake signal 2
20 mA
-
8
Electric parking brake signal 3
20 mA
-
9
Electric parking brake signal 4
20 mA
-
10
-
-
-
11
-
-
-
12
RL EPB motor ground
30A
-
13
RL EPB motor power
30A
-
14
Ground for solenoid valves and ECU
30A
10A
15
-
-
-
16
-
-
-
17
FR Wheel speed sensor signal
16.8 mA
5.9 mA
18
-
-
-
19
ESP OFF switch signal
10 mA
5 mA
20
Local CAN  Low
30 mA
20 mA
21
Clutch stroke sensor signal
-
-
22
-
-
-
23
N' Signal
200 mA
100 mA
24
-
-
-
25
FR Wheel speed sensor power
16.8 mA
5.9 mA
26
RR Wheel speed sensor power
16.8 mA
5.9 mA
27
RL Wheel speed sensor signal
16.8 mA
5.9 mA
28
-
-
-
29
FL Wheel speed sensor signal
16.8 mA
5.9 mA
30
Voltage supply for solenoid valves
30A
10A
31
-
-
-
32
Wheel speed sensor output
Open drain
-
33
-
-
-
34
Auto holding ON/OFF switch signal
10 mA
5 mA
35
Brake light switch
10 mA
5 mA
36
RR Wheel speed sensor signal
16.8 mA
5.9 mA
37
IGN 1
5A
1A
38
RL Wheel speed sensor power
16.8 mA
5.9 mA
39
FL Wheel speed sensor power
16.8 mA
5.9 mA
40
-
-
-
41
-
-
-
42
-
-
-
43
-
-
-
44
C-CAN  High
30 mA
20 mA
45
C-CAN  Low
30 mA
20 mA
46
Voltage supply for pump motor
40A
10A

    Description and operation

    Description This specification applies to HCU (Hydraulic Control Unit) and ECU (Electronic Control Unit) of the HECU. (Hydraulic and Electronic Control Unit) This specification is for the wiring design and installation of ABS ECU...

    Repair procedures

    Inspection ABS System Bleeding This procedure should be followed to ensure adequate bleeding of air and filling of the ESC unit, brake lines and master cylinder with brake fluid...

    Other information:

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    Hyundai i30 (PD) 2018-2024 Owner's Manual: Steering wheel


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