Hyundai Elantra: Cruise Control System / Schematic Diagrams

Hyundai Elantra AD (2016-2020) Service Manual / Engine Electrical System / Cruise Control System / Schematic Diagrams

System Block Diagram

Component Parts And Function Outline

Component part		Function
Vehicle-speed sensor, ESP/ABS Control Module		Converts vehicle speed to pulse.
ECM		Receives signals from sensor and control switches.
Cruise control indicator		Illuminate when CRUISE main switch is ON (Built into cluster)
Cruise Control switches	CRUISE switch	Switch for automatic speed control power supply.
	RES+ switch	Controls automatic speed control functions by Resume/Accel switch (Set/Coast switch)
	SET- switch
Cancel switches	Cancel switch	Sends cancel signals to ECM.
	Brake-pedal switch
	Transaxle range switch (A/T)
ETC motor		Regulates the throttle valve to the set opening by ECM.

* ETC Motor : Electronic Throttle Control Motor

Description and Operation

Cruise Control The cruise control system is engaged by the cruise "ON/OFF" main switch located on the right-hand side of steering wheel column. The system has the capability to cruise, coast, a ...

Troubleshooting

Trouble Symptom Charts Trouble Symptom 1 Trouble Symptom 2 Trouble symptomProbable causeRemedyThe set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Schematic Diagrams
Schematic Diagrams Terminal Function Wire No.DesignationCurrentmaxmin13Ground for recirculation pump39 A10 A1Voltage supply for pump motor39 A10 A25Voltage supply for solenoid valves15 A2 A38Ground for solenoid valves andECU15 A2 A22Signal wheel speed sensor (FL)16.8 mA5.9 mA33Voltage supply f ...

Hyundai Elantra AD (2016-2020) Service Manual: 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 system control is prohibited. 3. However, when the solenoid valve relay should be turned off in case of ESC failure, refer to the ABS fail-safe. 4. ...