Hyundai Santa Fe: Cruise Control System (CC) / Schematic diagrams

Hyundai Santa Fe (TM) 2019-2025 Service Manual / Advanced Driver Assistance System (ADAS) / Cruise Control System (CC) / 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.
	Resume/Accel switch (RES +)	Controls automatic speed control functions by Resume/Accel switch (Set/Coast switch)
	Set/Coast switch (RES -)
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

Troubleshooting

Trouble Symptom Charts Trouble Symptom 1 Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward "Surging" (repeated alternating acceleration and deceleration) occurs after setting Malfunction of the vehicle speed sensor circuit Repair the vehicle speed sensor system, or replace the part Malfunction of ECM Check input and output signals at ECM Trouble Symptom 3 Trouble symptom Probable cause Remedy The CC system is not canceled when the brake pedal is depressed Damaged or disconnected wiring of the brake pedal switch Repair the harness or replace the brake pedal switch Malfunction of the ECM signals Check input and output signals at ECM Trouble Symptom 4 Trouble symptom Probable cause Remedy The CC system is not canceled when the shift lever is moved to the "N" position (It is canceled, however, when the brake pedal is depressed) Damaged or disconnected wiring of inhibitor switch input circuit Repair the harness or repair or replace the inhibitor switch Improper adjustment of inhibitor switch Malfunction of the ECM signals Check input and output signals at ECM Trouble Symptom 5 Trouble symptom Probable cause Remedy Cannot decelerate (coast) by using the "SET/–" switch Temporary damaged or disconnected wiring of "SET/–" switch input circuit Repair the harness or replace the "SET/–" switch Malfunction of the ECM signals Check input and output signals at ECM Trouble Symptom 6 Trouble symptom Probable cause Remedy Cannot accelerate or resume speed by using the "RES/+" switch Damaged or disconnected wiring, or short circuit, or "RES/+" switch input circuit Repair the harness or replace the "RES/+" switch Malfunction of the ECM signals Check input and output signals at ECM Trouble Symptom 7 Trouble symptom Probable cause Remedy CC system can be set while driving at a vehicle speed of less than 40km/h (25mph), or there is no automatic cancellation at that speed Malfunction of the vehicle-speed sensor circuit Repair the vehicle speed sensor system, or replace the part Malfunction of the ECM signals Check input and output signals at ECM Trouble Symptom 8 Trouble symptom Probable cause Remedy The cruise main switch indicator lamp does not illuminate (But CC system is normal) Damaged or disconnected bulb of cruise main switch indicator lamp Repair the harness or replace the part...

Cruise Control (CC) Switch. Components and components location

Other information:

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