Hyundai Sonata LF Quiz
Engine Electrical System

Schematic Diagrams

In this manual: Engine Electrical System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
~1min read

Symptom Troubleshooting Tables

Component Location and Function Diagram
Component Function
Cruise control switch Input the set speed and distance into the SCC ECU.
Instrument Cluster Display various information input from the SCC.
Smart Cruise Control Recognize and track the vehicle ahead.
Calculate the speed and distance to the target
Request acceleration and deceleration from the ESP
DC Hydraulic Electronic Control Unit (HECU) Automatic braking and request for engine torque control to the Engine Control Module (ECM)
Request for EPB torque control to the Electronic Parking Brake (EPB)
Request activation of the brake light
Engine (ECM) Control engine torque
Electronic Parking Brake (EPB) Monitor EPB torque
Stop Lamp Brake light illuminates

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.