Hyundai Elantra: ESC(Electronic Stability Control) System / Schematic Diagrams

Schematic Diagrams

Terminal Function

Wire No.
Designation
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 andECU
15 A
2 A
22
Signal wheel speed sensor (FL)
16.8 mA
5.9 mA
33
Voltage supply for the active wheel speed sensor(RL)
16.8 mA
5.9 mA
19
Voltage supply for the active wheel speed sensor(RR)
16.8 mA
5.9 mA
18
Voltage supply for the active wheel speed sensor(FR)
16.8 mA
5.9 mA
6
Signal wheel speed sensor (FR)
16.8 mA
5.9 mA
14
C-CAN LOW
30 mA
20 mA
34
Voltage supply for the active wheel speed sensor(FL)
16.8 mA
5.9 mA
20
Signal wheel speed sensor (RL)
16.8 mA
5.9 mA
32
Voltage for HECU (IGN)
1 A
500 mA
31
Signal wheel speed sensor (RR)
16.8 mA
5.9 mA
30
Brake light switch
10 mA
5 mA
26
C-CAN HIGH
30 mA
20 mA
27
Wheel speed sensor output
Open Draim
-
8
ESC switch
10 mA
5 mA
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

Description and Operation
Description of ESC Optimum driving safety now has a name : ESC, the Electronic Stability Program. ESC recognizes critical driving conditions, such as panic reactions in dangerous situations, a ...

Repair procedures
Inspection ESC 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. 1. Remove t ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Side Impact Sensor (SIS) Description and Operation
Description • Side Impact Sensors (SIS), each installed on the center part of the right and left front door modules and the right and left center pillars, detects side impact during collision. • The SRSCM uses the signals from SIS during side collision to determine whether and w ...

Hyundai Elantra AD (2016-2020) Service Manual: ESC OFF Switch Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the crash pad lower panel. (Refer to Body - "Crash Pad") 3. Remove the side crash pad switch. 4. Disconnect the ESC OFF switch connector. 5. Check the continuity between the switch termi ...

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