Fuse Box Diagrams

2021 Hyundai Elantra Fuse Box Diagram

The 3 fuse boxes on the 2021 Hyundai Elantra, with every fuse and relay. Tap a fuse to see what it protects, or search for the thing that stopped working.

Year202120222023All years

Where it isInside the car, under or behind the dashboard, driver's side. Page 9-45 of the owner's manual shows the exact spot.

Slot map: the fuses are listed in the manual's order, not where they sit in the box. Match the numbers to the label inside the box cover, or the drawing on page 9-45 of your owner's manual.

DRIVER’S SIDE FUSE PANEL · SLOT MAP, NOT TO SCALEMEMORY110AAIR BAG210AMODULE410AMODULE77.5ASTART7.5ACLUSTER7.5AIBU27.5AA/C17.5ATRUNK10AS/HEATER FRT20AP/WINDOW LH25AMULTIMEDIA15AFCA10AMDPS7.5AMODULE67.5AS/HEATER RR20ASAFETY P/ WINDOW D…25AP/WINDOW RH25ABRAKE SWITCH10AIBU115AMODULE210AAIR BAG115AMODULE510AAMP25AHEATED MIRROR10ADOOR LOCK20AIAU10AMODULE37.5AA/BAG IND7.5AWASHER15AP/SEAT PASS30AP/SEAT DRV30AWIPER10AMODULE110ASUNROOF20AUSB CHARGER15AIG125A

2021 Elantra driver's side panel fuses

Driver’s side fuse panel. Tap a row to find it on the diagram.

No.AmpsTypeProtects
MEMORY110AFuse (size not listed)Instrument Cluster, A/C Controller, A/C Control Module, DRV/PASS Folding Outside Mirror
AIR BAG210AFuse (size not listed)SRS Control Module
MODULE410AFuse (size not listed)Lane Keeping Assist Unit (LINE), Crash Pad Switch, IBU, Parking Collision Avoidance Assist Unit, A/T Shift Lever Indicator, Front Console Switch
MODULE77.5AFuse (size not listed)Parking Collision Avoidance Assist Unit, IAU, Rear Seat Warmer Control Module
START7.5AFuse (size not listed)Burglar Alarm Relay, Transaxle Range Switch, PCM/ ECM IBU, E/R Junction Block (Start Relay)
CLUSTER7.5AFuse (size not listed)Instrument Cluster
IBU27.5AFuse (size not listed)IBU
A/C17.5AFuse (size not listed)E/R Junction Block (PTC Heater Relay, Blower Relay), A/C Control Module, A/C Controller
TRUNK10AFuse (size not listed)Trunk Lid Latch, Trunk lid Switch
S/HEATER FRT20AFuse (size not listed)Front Seat Warmer Control Module
P/WINDOW LH25AFuse (size not listed)Power Window Main Switch
MULTIMEDIA15AFuse (size not listed)Audio, A/V & Navigation Head Unit, DC-DC Converter
FCA10AFuse (size not listed)Forward Collision Avoidance Assist Unit
MDPS7.5AFuse (size not listed)MDPS Unit
MODULE67.5AFuse (size not listed)IBU
S/HEATER RR20AFuse (size not listed)Rear Seat Warmer Control Module
SAFETY P/ WINDOW DRV25AFuse (size not listed)Driver Safety Power Window Module
P/WINDOW RH25AFuse (size not listed)Power Window Main Switch, Passenger Power Window Switch
BRAKE SWITCH10AFuse (size not listed)Stop Lamp Switch, IBU
IBU115AFuse (size not listed)IBU
MODULE210AFuse (size not listed)E/R Junction Block (Power Outlet Relay), AMP, IBU, IAU, Audio, Power Outside Mirror Switch, Parking Collision Avoidance Assist Unit, DC-DC Converter, A/V Navigation Head Unit
AIR BAG115AFuse (size not listed)SRS Control Module, Passenger Occupant Detection Sensor A/T Shift Lever Indicator, Front Wireless Charger, A/C
MODULE510AFuse (size not listed)Controller, Electro Chromic Mirror, A/C Control Module, Audio, A/V & Navigation Head Unit, AMP, DC-DC Converter, Data Link Connector, Rear Seat Warmer
AMP25AFuse (size not listed)Control Module, Front Seat Warmer Control Module AMP, DC-DC Converter
HEATED MIRROR10AFuse (size not listed)DRV/PAS Outside Mirror Heated, A/C Control Module, A/C Controller
DOOR LOCK20AFuse (size not listed)DRV/PAS DOOR ACTUATOR
IAU10AFuse (size not listed)BLE Unit, IAU, Driver/Passenger Door NFC Module
MODULE37.5AFuse (size not listed)Stop Lamp Switch, IAU
A/BAG IND7.5AFuse (size not listed)Instrument Cluster, Overhead Console Lamp
WASHER15AFuse (size not listed)Multifunction Switch
P/SEAT PASS30AFuse (size not listed)Passenger Seat Manual Switch
P/SEAT DRV30AFuse (size not listed)Driver Seat Manual Switch
WIPER10AFuse (size not listed)PCM/ECM, IBU
MODULE110AFuse (size not listed)Driver/Passenger Smart Key Outside Handle, Crash Pad Switch, Sport Mode Switch, Data Link Connector, Hazard Switch, Key Solenoid
SUNROOF20AFuse (size not listed)Sunroof Motor, Data Link Connector
USB CHARGER15AFuse (size not listed)Front USB Charger
IG125AFuse (size not listed)PCB Block (Fuse - ABS3, ECU5, EOP2, TCU2)

2021 Elantra engine bay fuses

Engine compartment fuse panel. Tap a row to find it on the diagram.

No.AmpsTypeProtects
ALT180AFuse (size not listed)[G4FP/G4NS-WIth AMS2] Alternator, (Fuse - ABS1, ABS2, EOP1, POWER OUTLET1)
MDPS180AFuse (size not listed)MDPS Unit
B+560AFuse (size not listed)PCB Block (Engine Control Relay, Fuse - ECU3, ECU4, HORN, WIPER, A/C)
B+160AFuse (size not listed)ICU Junction Block (IPS2/IPS5/IPS6/IPS7/ IPS14)
B+260AFuse (size not listed)ICU Junction Block (IPS1/IPS4/IPS8/IPS9/ IPS10)
POWER OUTLET220AFuse (size not listed)Front Power Outlet
POWER OUTLET320AFuse (size not listed)Not Used
COOLING FAN140AFuse (size not listed)Cooling Fan
DCT140AFuse (size not listed)Not Used
DCT240AFuse (size not listed)Not Used
REAR HEATED40AFuse (size not listed)Rear glass heated
B+440AFuse (size not listed)ICU Junction Block (Fuse - AIR BAG2, IBU1, BRAKE SWITCH, DOOR LOCK, IAU, MODULE1, SUNROOF,Power Window Relay)
AMS10AFuse (size not listed)Battery Sensor
TCU110AFuse (size not listed)[DCT] TCM, [M/T] Ignition Lock Switch
FUEL PUMP20AFuse (size not listed)Fuel Pump Control Module (T-GDI), Fuel Pump Motor (NU MPI AKS)
CVVD40AFuse (size not listed)Not Used
ABS140AFuse (size not listed)ABS Control Module, ESC Control Module, Multipurpose Check Connector
ABS230AFuse (size not listed)ABS Control Module, ESC Control Module, Multipurpose Check Connector
EOP130AFuse (size not listed)Electronic Oil Pump
POWER OUTLET140AFuse (size not listed)P/OUTLET FRT
WIPER25AFuse (size not listed)Wiper Motor
ECU415AFuse (size not listed)PCM/ECM
A/C10AFuse (size not listed)[G4FM] A/C Compressor
HORN15AFuse (size not listed)Horn
IGN COIL20AFuse (size not listed)Ignition Coil #1~#4
ECU315AFuse (size not listed)PCM/ECM
SENSOR310AFuse (size not listed)E/R Junction Block (Fuel Pump Relay)
ECU210AFuse (size not listed)Not Used [G4NS] Variable Intake Solenoid Valve, Oil Pump
SENSOR210AFuse (size not listed)Solenoid Valve, Oil Control Valve #1/#2, Canister Close Valve, Purge Control Solenoid Valve, PCB Block (A/C Relay), E/R Junction Block (Cooling
ECU510AFuse (size not listed)Fan1/2 Relay) ECM/PCM, [MT] Ignition Lock Switch
SENSOR115AFuse (size not listed)Oxygen Sensor (UP/DOWN)
ABS310AFuse (size not listed)ABS Control Module, ESC Control Module
INJECTOR15AFuse (size not listed)[G4FM/G4FG/G4NA] Injector #1~#4
ECU120AFuse (size not listed)PCM/ECM
TCU215AFuse (size not listed)Transaxle Range Switch

2021 Elantra cargo area fuses

ICU Junction Block (Fuse - TRUNK, AMP,. Tap a row to find it on the diagram.

No.AmpsTypeProtects
B+350AFuse (size not listed)ICU Junction Block (Fuse - TRUNK, AMP, SAFETY P/WINDOW DRV, P/SEAT DRV, P/ SEAT PASS, S/HEATER FRT, S/HEATER RR,
EPB60AFuse (size not listed)Long Term Load Latch Relay) ESC Control Module
PTC HEATER50AFuse (size not listed)PTC HEATER
BLOWER40AFuse (size not listed)BLOWER, DATC
IG140AFuse (size not listed)E/R Junction Block (PDM (IG1/ACC) Relay), Ignition Switch
IG240AFuse (size not listed)E/R Junction Block (PDM (IG2) Relay, Start Relay), Ignition Switch

Blade fuse colours

  • 5A Tan
  • 7.5A Brown
  • 10A Red
  • 15A Blue
  • 20A Yellow
  • 25A Clear
  • 30A Green
  • 35A Blue-green
  • 40A Orange

Cartridge (J-case) colours

  • 20A Blue
  • 25A White
  • 30A Pink
  • 40A Green
  • 50A Red
  • 60A Yellow

Source: 2021 Hyundai ELANTRA Owner's Manual, "Fuses" section, p. 9-45 and 9-48.

Always replace a fuse with one of the same amp rating. If a new fuse blows straight away, the circuit has a fault.