Where are the Fuse Boxes located in the 2018 Hyundai Tucson?

2018 Hyundai Tucson has 2 main boxes with fuses and relays. One is in the cabin (Passenger Compartment) and another is under the hood (Engine Compartment).

2018 Hyundai Tucson Under Dash Fuse Box and Relay Location 

2018 Hyundai Tucson Under Hood Fuse Box and Relay location

The Engine compartment fuse block is in the engine compartment is located on the driver side of the vehicle.

Battery Terminal(main fuse)

2018 Hyundai Tucson under Dash Fuse Box Layout

2018 Hyundai Tucson under Dash Fuse Box and Relay Details

Assignment of the fuses and relays in the Passenger compartment

NameAmp RatingCircuit Protected
A/CON17.5AA/C Control Module, Cluster Ionizer (Auto A/C), E/R Junction Block (Blower Relay)
WIPER RR15AICM Relay Box (Rear Wiper Relay), Rear Wiper Motor
MODULE610ABCM, Smart Key Control Module
WASHER15AMultifunction Switch (Washer Switch)
MODULE57.5ACrash Pad Switch, Parking Assist Buzzer, BCM, ATM Shift Lever, 4WD ECM, AEB Sensor, Console Switch, Blind Spot Detection Radar LH/RH, Lane Departure Warning Control Module, Lane Keeping Assist Control Module
AIR BAG15ASRS Control Module, Passenger Occupant Detection Sensor
MODULE110ABCM, Smart Key Control Module, AUDIO, A/V & Navigation Head Unit, TMU Module, AMP, Power Outside Mirror Switch, PCB Block (Power Outlet Relay)
START10AICM Relay Box (Burglar Alarm Relay), Transaxle Range Switch
MODULE77.5AFront Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Rear Seat Warmer
HEATED STEERING15ABCM
MODULE87.5ADriver/Passenger Power Outside Mirror, Center Facia Switch, Key Solenoid, AEB Sensor
MODULE47.5AData Link Connector, A/C Control Module, Head Lamp LH/RH, A/V & Navigation Head Unit, Electro Chromic Mirror, TMU Module, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Rear Seat Warmer
A/BAG IND7.5AInstrument Cluster, Center Facia Switch
MODULE310ABCM, ATM Shift Lever, IPS Control Module (ON/START Input)
SMART KEY115ASmart Key Control Module
4WD20A4WD ECM
TAILGATE OPEN10ATail Gate Open Relay
S/HEATER RR15ARear Seat Warmer
MDPS7.5AMDPS Unit
SMART KEY37.5ASmart Key Control Module, Immobilizer Module
CLUSTER7.5AInstrument Cluster (IG1 Power), ATM Shift Lever ILL.
SMART KEY210ASmart Key Control Module, Start/Stop Button Switch, Immobilizer Module
MULTIMEDIA15AAudio, A/V & Navigation Head Unit, TMU Module
INTERIOR LAMP10AIgnition Key III. & Door Warning Switch, Luggage Lamp, Glove Box Lamp, Overhead Console Lamp, Front Vanity Lamp LH/RH, Room Lamp, Rear Personal Lamp LH/RH
DOOR LOCK20ADoor Lock Relay, Door Unlock Relay, ICM Relay Box (Two Turn Unlock Relay)
SUNROOF220APanorama Sunroof
POWER OUTLET20AFront Power Outlet & Cigarette Lighter
BRAKE SWITCH7.5ASmart Key Control Module, Stop Lamp Switch
MEMORY210AData Link Connector, BCM, Instrument Cluster, A/C Control Module, Auto Light & Photo Sensor, Electro Chromic Mirror, ICM Relay Box (Outside Mirror Folding/Unfolding Relay)
P/SEAT (PASS)30APassenger Seat Manual Switch
S/HEATER FRT20AFront Air Ventilation Seat Control Module, Front Seat Warmer Control Module
SUNROOF120APanorama Sunroof
MODULE220APCB Block (Fuse – ABS3, ECU6, TCU2, MODULE1, MODULE2)
A/CON27.5AA/C Control Module
HEATED MIRROR10ADriver/Passenger Power Outside Mirror, A/C Control Module, ECM (G4FJ)
P/SEAT (DRV)30ADriver Seat Manual Switch
SAFETY P/WINDOW25ADriver Safety Power Window Module
P/WINDOW RH25APower Window Main Switch, Passenger Power Window Switch
P/WINDOW LH25APower Window Main Switch
AMP25AAMP

2018 Hyundai Tucson Under Hood Fuse Box Layout

2018 Hyundai Tucson under Hood Fuse Box and Relay Details

Assignment of the fuses and relays in the Engine compartment

NameAmp ratingProtected Component
MDPS80AMDPS Unit
B+ 160ASmart Junction Block (ARISU-LT IPS 1, IPS 2, IPS 3, IPS 4, Fuse – AMP)
B+ 260ASmart Junction Block (ARISU-LT IPS 5, IPS 6, IPS 7, IPS 8, Fuse – SMART KEY1, SMART KEY2, BRAKE SWITCH)
B+ 350ASmart Junction Block (Fuse – SUNROOF1, SUNROOF2, S/HEATER FRT, S/HEATER RR, SAFETY P/WINDOW, Power Window Relay (Fuse – P/WINDOW LH, P/WINDOW RH)
ABS140AESC Module, Multipurpose Check Connector
ABS240AESC Module, Multipurpose Check Connector
IG140AIgnition Switch (W/O Smart Key), PCB Block (PDM (IG1)/PDM (ACC) Relay – With Smart Key)
IG230AStart Relay, Ignition Switch (W/O Smart Key), PCB Block (PDM (IG2) Relay – With Smart Key)
B+ 450ASmart Junction Block (Fuse – MODULE8, 4WD, P/SEAT (DRV), P/SEAT (PASS), TAILGATE OPEN, DOOR LOCK, Leak Current Autocut Device – Fuse Switch, INTERIOR LAMP, MULTIMEDIA, MEMORY2)
COOLING FAN140A / 50ACooling Fan High Relay
TCU340A[G4FJ – 7DCT] TCM
TCU440A[G4FJ – 7DCT] TCM
BLOWER40ABlower Relay
POWER TAILGATE40APower Tail Gate Module
REAR HEATED40ARear Defogger Relay
WIPER FRT125AIgnition Switch (W/O Smart Key), PDM (IG2) Relay (With Smart Key)
TCU115A[G4FJ] TCM (7DCT)
WIPER FRT210ABCM
ECU320APCM (G4NC) / ECM (G4FJ)
HORN15AHorn Relay
BATTERY MANAGEMENT10ABattery Sensor
SENSOR210A[G4NC] Oil Control Valve #1/#2, Camshaft Position Sensor #1/#2, Purge Control Solenoid Valve, Variable Intake Solenoid Valve, Canister Close Valve, Fuel Pump Relay
[G4FJ] Oil Control Valve #1/#2, Purge Control Solenoid Valve, Canister Close Valve, Fuel Pump Relay
SENSOR115A[G4NC] PCM, Oxygen Sensor (Up)/(Down)
[G4FJ] ECM, Oxygen Sensor (Up)/(Down)
ECU220AIGNITION COIL #1/#2/#3/#4, Condenser (G4NC)
ECU515APCM (G4NC) / ECM (G4FJ)
ECU415APCM (G4NC) / ECM (G4FJ)
SENSOR310A[G4NC] E/R Junction Block (Cooling Fan High Relay)
[G4FJ] Brake Vacuum Switch, RCV Control Solenoid Valve, E/R Junction Block (Cooling Fan High Relay)
DEICER15AE/R Junction Block (Front Deicer Relay)
FUEL PUMP120AFuel Pump Relay
MODULE17.5AO/S Mirror Switch
B/ALARM HORN10AE/R Junction Block (B/Alarm Horn Relay)
ABS310AESC Module
AFLS10AAdaptive Front Light System
PCT Heaterl50APCT Heater 1
PCT Heater250APCT Heater 2
M0DULE210A[G4FJ] Vacuum Pump
POWER OUTLER FRT20AFront Power Outlet & Cigarette Lighter
ECU610APCM (G4NC) / ECM (G4FJ)
TCU215ATransaxle Range Switch, TCM (G4FJ – 7DCT)
B/UP LAMP10APCM (G4NC) / TCM (G4FJ), Transaxle Range Switch, Audio, A/V & Navigation Head Unit, Electro Chromic Mirror, Rear Combination Lamp (IN) LH/RH
POWER OUTLER REAR20ARear Power Outlet
ECU130AEngine Control Relay
E-CVVT120APCM (G4NC) / ECM (G4FJ)
E-CVVT220APCM (G4NC) / ECM (G4FJ)

WARNING: The terminal and harness assignments for individual connectors may vary depending on the vehicle’s equipment level, model, and market. It is recommended to refer to the fuse box diagram provided at the back of the fuse box cover for accurate information.

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