Hyundai Elantra: Schematic Diagrams - ESC(Electronic Stability Control) System - Brake System - Hyundai Elantra HD 2006Ц2010 Service ManualHyundai Elantra: Schematic Diagrams


ESC Circuit Diagram(1)

ESC Circuit Diagram(2)

ESC Circuit Diagram(2)


ESC HECU Connector Input / Output

Connector Terminal
Specifications
Conditions
No
Description
1
Ground(Pump)
Current range : Min-10 A
Max-20 ~ 39 A
Always
4
Ground(Valve,ECU)
Current range : Min-2.5 A
Max-5 ~ 15 A
Always
2
Supply voltage(Pump)
Battery voltage
Always
3
Supply voltage(Valve)
26
Wheel sensor voltage(FL)
Battery voltage
IG ON
9
Wheel sensor voltage(FR)
6
Wheel sensor voltage(RL)
8
Wheel sensor voltage(RR)
5
Wheel sensor signal(FL)
Voltage(High) : 0.89~1.26 V
Voltage(Low) : 0.44~0.63 V
RUNNING
10
Wheel sensor signal(FR)
27
Wheel sensor signal(RL)
29
Wheel sensor signal(RR)
11
Diagnosis Input/oupput
Voltage(High) : 0.8 * IG ON more
Voltage(Low) : 0.2 * IG ON lower
SCAN TOOL
Communication
28
Ignition
Battery voltage
KEY ON/OFF
31
ESC Passive switch
Voltage(High) : 0.6 * IG ON more
Voltage(Low) : 0.4 * IG ON lower
Switch ON/OFF
37
Yaw Rate Sensor Test
Voltage(High) : 4.1 V more
Voltage(Low) : 1 V lower
IG ON
18
Yaw Rate Sensor Reference
2.464 V ~ 2.536 V
IG ON
16
Yaw Rate Sensor Signal
Offset voltage :2.5 V
range : 0.35 V ~ 4.65 V(-100 ~ 100 ∞/s)
IG ON
20
Acceleration Sensor Signal
Offset voltage :2.5 V
range : 0.35 V ~ 4.65 V(-1.8 g ~ 1.8 g)
IG ON
15
Yaw Rate Sensor Ground
GND LEVEL
Always
35
CAN High
not communicating:2.5 ± 0.5 V
communication :

IG ON
14
CAN Low
30
BRAKE LIGHT SWITCH
voltage(High) : 0.8 * IG ON more
voltage(Low) : 0.3 * IG ON lower
BRAKE ON/OFF


    Troubleshooting
    Failure Diagnosis 1. In principle, ESC and TCS controls are prohibited in case of ABS failure. 2. When ESC or TCS fails, only the failed s ...