Hyundai Sonata LF: Advanced Smart Cruise Control System / Schematic Diagrams

Hyundai Sonata LF 2014-2019 Service Manual / Engine Electrical System / Advanced Smart Cruise Control System / Schematic Diagrams

Trouble Symptom Charts

Component Parts And Function Outline

Component part	Function
Cruise Control Switch	Input the set speed and distance to the SCC ECU.
Instrument Cluster	Display various information inputted from SCC.
Smart Cruise Control Unit	Recognize and track the vehicle ahead. Calculate the target speed and distance Request the acceleration and retardation to ESP
VDC (HECU)	Automatic braking and request the engine torque control to the engine (ECM) Request the EPB torque control to the Electronic Parking Brake (EPB) Request the stop lamp indicator ON
Engine (ECM)	Control the engine torque
Electronic Parking Brake (EPB)	Control the EPB torque
Stop lamp	Stop lamp indicator ON

General Safety Information and Caution

General Safety Information and Caution Be careful when driving the vehicle using the smart cruise control system as follows. • The smart cruise control system may have limits to detect distance to the vehicle ahead due to road and traffic conditions...

Description and Operation

Description The smart cruise control system allows a driver to program the vehicle to control the speed and following distance detecting the vehicle ahead without depressing the brake pedal and the accelerator pedal...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting

Troubleshooting Ignition System SymptomSuspect AreaRemedyEngine will not start or is hard to start (Cranks OK)Ignition lock switchInspect ignition lock switch, or replace as requiredIgnition coilInspect ignition coil, or replace as requiredSpark plugsInspect spark plugs, or replace as requiredIgnition wiring disconnected or brokenRepair wiring, or replace as requiredRough idle or stallsIgnition wiringRepair wiring, or replace as requiredIgnition coilInspect ignition coil, or replace as requiredEngine hesitates/poor accelerationSpark plugs and spark plug cablesInspect spark plugs / cable, or replace as requiredIgnition wiringRepair wiring, or replace as requiredPoor mileageSpark plugs and spark plug cablesInspect spark plugs / cable, or replace as required Charging System SymptomSuspect AreaRemedyCharging warning indicator does not light with ignition switch "ON" and engine off...

Hyundai Sonata LF 2014-2019 Service Manual: Front Strut Assembly Repair procedures