Fuses and relays Hyundai Sonata 7 (LF), 2014–2019

The Seventh-Generation Sonata was introduced in South Korea in March 2014, followed by its North American debut at the 2014 New York International Auto Show. This guide provides detailed fuse box diagrams and terminal assignments for the Hyundai Sonata (chassis code LF) covering model years 2014, 2015, 2016, 2017, 2018, and 2019.

Below you will find the locations, diagrams, and photos of the power distribution centers. Fuses dedicated to the "Cigarette Lighter" and "Fuel Pump" circuits are highlighted in bold.

Engine Compartment Fuse Box

Located on the left side of the engine compartment, adjacent to the battery. Unlatch and remove the protective cover to access the fuses.

Example cover legend.

General assembly view.

Diagram
Name	Protected Component / Circuit	Rating (A)
IG2	[Without Smart Key] Starter relay, ignition switch [With Smart Key] Starter relay, PCB assembly (IG2 relay)	30
3 TCU	[G4FJ - DCT] Transmission Control Module (TCM)	40
BLOWER	Blower motor relay	40
1 ABS	Electronic Stability Control (ESC) module	40
REAR HEATED	Rear defroster relay	50
1 B +	Smart Junction Box (IPS2 [4-ch], IPS3 [4-ch])	50
1 COOLING FAN	[G4KH / G4FJ] Cooling fan relay, [G4KJ] Cooling fan relay	50
2 COOLING FAN	[G4KH / G4FJ] Cooling fan relay	60
1 MDPS	Motor Driven Power Steering (MDPS) unit	80
2 ABS	Electronic Stability Control (ESC) module, multi-purpose check connector	30
IG1	[Without Smart Key] Ignition switch [With Smart Key] PCB assembly (IG1 / ACC relay)	40
4 TCU	[G4FJ - DCT] Transmission Control Module (TCM)	40
3 POWER OUTLET	12V Power outlet relay	40
2 B +	Smart Junction Box (IPS1 [4-ch], IPS4 [4-ch], IPS5 [4-ch], IPS6 [2-ch], IPS7 [1-ch], AMP fuse)	50
5 B +	PCB assembly (engine control relay, TCU1, ECU1, HORN, AMS, WIPER fuses)	60
1 B +	Smart Junction Box (power window relay, LEFT SAFETY WINDOW, P/SEAT PASS, RIGHT SAFETY WINDOW, P/SEAT DRV, MODULE1, P/WDW LH, P/WDW RH, TRUNK, S/HEATER RR, SUNROOF2, LUX1 fuses)	60
2 MDPS	Motor Driven Power Steering (MDPS) unit	100
3 E-CVVT	[G4KJ / G4KH] Powertrain Control Module (PCM)	20
2 E-CVVT	[G4KJ / G4KH] Powertrain Control Module (PCM)	20
FUEL PUMP	Fuel pump relay	20
H / LAMP HI	Headlamp high-beam relay	20
1 VACUUM PUMP	[G4KH / G4FJ] Electric vacuum pump	20
1 E-CVVT	[G4KJ / G4KH] E-CVVT relay	40
4 B +	Smart Junction Box (battery saver relay fuse – INTERIOR LAMP, MULTIMEDIA, MEMORY1, DOOR LOCK, S/FRONT HEATER, BRAKE SWITCH, SMART KEY, MODULE10 fuses)	40
A / CON	Air conditioning control module	10
HEATED MIRROR	[G4FJ] Engine Control Module (ECM), A/C control module, driver/passenger power exterior mirrors	10
2 VACUUM PUMP	[G4KH / G4FJ] Electric vacuum pump, vacuum pressure switch	10
3 ECU	Powertrain Control Module (PCM) / Engine Control Module (ECM)	10
1 POWER OUTLET	Front cigarette lighter and auxiliary power outlet #2	20
FUEL PUMP	Fuel pump relay	20
HORN	Horn relay, ICM relay box (burglar alarm horn relay)	20
WIPER	Front wiper relay (low), front wiper relay (high)	30
2 TCU	Transmission range switch, [G4FJ-DCT] Transmission Control Module (TCM)	15
3 ABS	Electronic Stability Control (ESC) module	10
2 POWER OUTLET	Rear power outlet	20
B / UP LAMP	Transmission range switch, [G4KJ / G4KH-A/T] Powertrain Control Module (PCM), [G4FJ-DCT] Transmission Control Module (TCM), electrochromic mirror, rear combination lamps (LH / RH)	10
1 SENSOR	Oxygen sensors (upstream / downstream)	15
2 SENSOR	Purge Control Solenoid Valve (PCSV), canister close valve, RKV control solenoid valve, fuel pump relay, engine compartment junction box (cooling fan relay, fuel pump relay), [G4KJ / G4KH] Variable Intake System (VIS) solenoid valve, exhaust oil control valve, [G4FJ] intake / exhaust oil control valves (#1 / #2)	15
1 ECU	Powertrain Control Module (PCM) / Engine Control Module (ECM)	10
1 TCU	[G4KJ / G4KH-A/T] Powertrain Control Module (PCM), [G4FJ-DCT] Transmission Control Module (TCM)	10
1 ECU	Powertrain Control Module (PCM) / Engine Control Module (ECM)	10
IGN COIL	Ignition coils (#1 / #2 / #3 / #4)	20
INJECTOR	Engine management system / Fuel injectors	15
AMS	Alternator Management System (AMS) battery sensor	10

Passenger Compartment Fuse Box

Located behind the access panel on the lower driver-side instrument panel.

Example panel cover legend.

General view of the Hyundai Sonata (LF) interior fuse box.

Diagram
Name	Protected Component / Circuit	Rating (A)
SAFETY WINDOW LH	Driver safety power window module	25
P / SEAT PASS	Passenger power seat switch	30
P / WDW LH	Power window main switch, left rear power window switch	20
P / WDW RH	Power window main switch, right rear power window module, front passenger door module, front passenger power window switch	25
DR LOCK	Door lock relay, door unlock relay	20
S / HEATER FRT	Front seat ventilation module, front seat heater module	25
BRAKE SWITCH	Brake light switch, immobilizer module, Smart Key control module	10
8 MODULE	Body Control Module (BCM) / Smart Key control module	7.5
SAFETY POWER WINDOW RH	Front passenger safety power window module	25
SMART KEY	Smart Key control module	15
TRUNK	Trunk lid release relay, fuel filler door and trunk release switch	10
7 MODULE	Digital clock, driver / passenger door module	10
INTERIOR LAMP	Ignition key switch and door-ajar warning switch, front map lamp switches (LH / RH), overhead console lamp, dome lamp, rear personal lamps (LH / RH), trunk room lamp, driver / passenger exterior Smart Key door handle lamps	10
2 MEMORY	Not used	7.5
P / SEAT DRV	Driver power seat switch, driver Integrated Memory System (IMS) module	30
CLUSTER	Instrument cluster	10
4 MODULE	Immobilizer module, Smart Key control module	10
MULTI MEDIA	Audio / Video Navigation (AVN) head unit	15
1 MEMORY	Driver / passenger door modules, driver Integrated Memory System (IMS) module, A/C control module, auto-light & photo sensor, electrochromic mirror, instrument cluster, Tire Pressure Monitoring System (TPMS) module, digital clock, wireless phone charger, Audio / Video Navigation (AVN) head unit	10
S / HEATER RR	Rear seat heater module	25
2 SUN ROOF	Panoramic sunroof motor	20
9 MODULE	Front ventilated seat module, front seat heater module, rear seat heater module	7.5
MDPS	Motor Driven Power Steering (MDPS) unit (column-type / rack-type)	7.5
3 MODULE	Body Control Module (BCM), Drive Mode selector switch, brake light switch	10
1 MODULE	Key interlock solenoid valve, driver / passenger door modules	7.5
1 SUN ROOF	Sunroof motor (standard / panoramic)	20
A / CON	A/C control module, engine compartment junction box (blower relay)	7.5
2 MODULE	Audio / Video Navigation (AVN) head unit, digital clock, USB charging port, Body Control Module (BCM), audio amplifier, power exterior mirror switch, wireless phone charger, Smart Key control module, overhead console lamp, engine compartment junction box (power outlet relay)	10
A / BAG IND	Instrument cluster (airbag indicator lamp)	7.5
6 MODULE	Multi-purpose check connector, A/C control module, Audio / Video Navigation (AVN) head unit, front ventilated seat module, front seat heater module, rear seat heater module, driver Integrated Memory System (IMS) module, headlamps with Dynamic Bending Light (DBL), automatic transaxle shift lever indicator	10
AMP	Audio amplifier (JBL / MOBIS)	25
HTD STRG	Heated steering wheel module, Body Control Module (BCM)	15
5 MODULE	Front console switch assembly, Tire Pressure Monitoring System (TPMS) module, Lane Keeping Assist System (LKAS) module, Smart Cruise Control (SCC) module, trunk lid release switch, Autonomous Emergency Braking (AEB) module, headlamps with Dynamic Bending Light (DBL), rear parking assist sensors (corner LH/RH, center LH/RH), Blind Spot Detection (BSD) radar modules (LH/RH)	10
IG1	PCB junction block (VACUUM PUMP2, TCU2, ECU3, ABS3 fuses)	25
WASHER	Multi-function switch (windshield wiper lower switch and washer switch)	15
POWER OUTLET	Front 12V power socket	20
A / BAG	Supplemental Restraint System (SRS) control module, occupant classification sensor	15
START	[Without Smart Key & Immobilizer] ICM relay box (burglar alarm relay) [With Smart Key / Immobilizer] Transmission range switch, Powertrain Control Module (PCM) [G4KJ / G4KH]	7.5
10 MODULE	Body Control Module (BCM)	10