Hyundai Sonata: Schematic Diagrams

Hyundai Sonata YF 2011-2014 Service Manual / Brake System / ESC(Electronic Stability Control) System / Schematic Diagrams

Circuit Diagram - ESC (1)

Circuit Diagram - ESC (2)

Circuit Diagram - ESC (2)

Circuit Diagram - ESC (3)

Circuit Diagram - ESC (3)

ESC HECU Connector input/output

Connector Terminal		Specifications	Conditions
No	Description	Specifications	Conditions
13	Ground(Motor)	Current range : Min-10 A Max 39 A	Always
38	Ground(Valve)	Current range : Min-2 A Max 15 A	Always
1	Supply voltage(Motor)	Battery voltage	Always
25	Supply voltage(Valve)	Battery voltage	Always
34	Wheel sensor voltage(FL)	Battery voltage	IG ON
18	Wheel sensor voltage(FR)
33	Wheel sensor voltage(RL)
19	Wheel sensor voltage(RR)
22	Wheel sensor signal(FL)	Voltage(High) : 0.26 ~ 0.37 V Voltage(Low) : 0.13 ~ 0.18 V	RUNNING
6	Wheel sensor signal(FR)
20	Wheel sensor signal(RL)
31	Wheel sensor signal(RR)
32	Ignition	Battery voltage	KEY ON/OFF
8	ESC Passive switch	Voltage(High) : 0.6 * IG ON more Voltage(Low) : 0.4 * IG ON lower	Switch ON/OFF
26	CAN High	not communicating:2.5 ± 0.5 V communication :	IG ON
14	CAN Low	not communicating:2.5 ± 0.5 V communication :	IG ON
30	BRAKE LIGHT SWITCH	voltage(High) : ≥ 4.5 V voltage(Low) : ≤ 2.0 V	BRAKE ON/OFF
12	Parking Brake Switch (Signal)	voltage(High) : ≥ 0.7 V * IG ON voltage(Low) : ≤ 0.35 V * IG ON

Description and Operation

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

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 ...