Hyundai Elantra 2021 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located at the left side of the steering column at the bottom of the instrument panel.
Engine compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay Name | Rating | Functions |
| MEMORY1 | 10A | Instrument Cluster, A/C Controller, A/C Control Module |
| AIR BAG2 | 10A | SRS Control Module |
| MODULE4 | 10A | Lane Keeping Assist Unit (LINE), Crash Pad Switch, IBU, Parking Collision Avoidance Assist Unit, A/T Shift Lever Indicator, Front Console Switch |
| MODULE7 | 7.5A | Parking Collision Avoidance Assist Unit, IAU, Cooling Fan Controller, Rear Seat Warmer Control Module |
| START | 7.5A | Burglar Alarm Relay, Transaxle Range Switch, PCM/ ECM IBU, E/R Junction Block (Start Relay) |
| CLUSTER | 7.5A | Instrument Cluster |
| IBU2 | 7.5A | IBU |
| A/C1 | 7.5A | Ecn7sd21100bn.EPS |
| TRUNK | 10A | Trunk Relay |
| S/HEATER FRT | 20A | Front Seat Warmer Control Module |
| P/WINDOW LH | 24A | Power Window Main Switch |
| MULTIMEDIA | 15A | Audio, A/V & Navigation Head Unit, DC-DC Converter |
| FCA | 10A | Forward Collision Avoidance Assist Unit |
| MDPS | 7.5A | MDPS Unit |
| MODULE6 | 7.5A | IBU |
| S/HEATER RR | 20A | Rear Seat Warmer Control Module |
| SAFETY P/WINDOW DRV | 25A | Driver Safety Power Window Module |
| P/WINDOW RH | 25A | Power Window Main Switch, Passenger Power Window Switch |
| BRAKE SWITCH | 10A | Stop Lamp Switch, IBU |
| IBU1 | 15A | IBU |
| MODULE2 | 10A | 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 BAG1 | 15A | SRS Control Module, Passenger Occupant Detection Sensor |
| MODULE5 | 10A | A/T Shift Lever Indicator, Front Wireless Charger, A/C Controller, Electro Chromic Mirror, A/C Control Module, Audio, A/V & Navigation Head Unit, AMP, DC-DC Converter, Data Link Connector, Rear Seat Warmer Control Module, Front Seat Warmer Control Module |
| AMP | 25A | AMP |
| HEATED MIRROR | 10A | Ecn7sd21100bn.EPS |
| DOOR LOCK | 20A | Center Door Lock/Unlock Relay, Two Turn Unlock Relay |
| IAU | 10A | BLE Unit, IAU, Driver/Passenger Door NFC Module |
| MODULE3 | 7.5A | Sport Mode Switch, Stop Lamp Switch, IAU |
| A/BAG IND | 7.5A | Instrument Cluster, Overhead Console Lamp |
| WASHER | 15A | Multifunction Switch |
| P/SEAT PASS | 30A | Passenger Seat Manual Switch |
| P/SEAT DRV | 30A | Driver Seat Manual Switch |
| WIPER | 10A | PCM/ECM, IBU, Wiper Motor, PCB Block (Front Wiper (Low) Realy) |
| MODULE1 | 10A | Driver/Passenger Smart Key Outside Handle, Crash Pad Switch, Sport Mode Switch, Data Link Connector, Hazard Switch, Key Solenoid |
| SUNROOF | 20A | Sunroof Motor |
| USB CHARGER | 15A | Front USB Charger |
| IG1 | 25A | PCB Block (Fuse - ABS3, ECU5, EOP2, TCU2) |
Engine compartment fuse box:
| Fuse/Relay Name | Rating | Functions |
| ALT |
150A 180A |
[G4NS-W/O AMS2] Alternator, (Fuse - ABS1, ABS2, EOP1, POWER OUTLET1) [G4FP/G4NS-WIth AMS2] Alternator, (Fuse - ABS1, ABS2, EOP1, POWER OUTLET1) |
| MDPS1 | 80A | MDPS Unit |
| COOLING FAN2 | 60A | [G4FP] Cooling Fan Controller |
| DCT3 | 40A | [G4FP] SGA |
| B+5 | 60A | PCB Block (Engine Control Relay, Fuse - ECU3, ECU4, HORN, WIPER, A/C) |
| B+1 | 60A | ICU Junction Block (IPS2/IPS5/IPS6/IPS7/ IPS14) |
| B+2 | 60A | ICU Junction Block (IPS1/IPS4/IPS8/IPS9/ IPS10) |
| B+3 | 50A | ICU Junction Block (Fuse - TRUNK, AMP, SAFETY P/WINDOW DRV, P/SEAT DRV, P/ SEAT PASS, S/HEATER FRT, S/HEATER RR, Long Term Load Latch Relay) |
| EPB | 60A | ESC Control Module |
| PTC HEATER | 50A | E/R Junction Block (PTC Heater Relay) |
| BLOWER | 40A | Ecn7sd21100dn.EPS |
| IG1 | 40A | E/R Junction Block (PDM (IG1/ACC) Relay), Ignition Switch |
| IG2 | 40A | E/R Junction Block (PDM (IG2) Relay, Start Relay), Ignition Switch |
| POWER OUTLET2 | 20A | Front Power Outlet |
| POWER OUTLET3 | 20A | Not used |
| COOLING FAN1 | 40A | [G4NS] E/R Junction Block (Cooling Fan1/2 Relay) |
| DCT1 | 40A | [G4FP] TCM |
| DCT2 | 40A | [G4FP] TCM |
| REAR HEATED | 40A | E/R Junction Block (Rear Heated Relay) |
| B+4 | 40A | ICU Junction Block (Fuse - AIR BAG2, IBU1, BRAKE SWITCH, DOOR LOCK, IAU, MODULE1, SUNROOF,Power Window Relay) |
| AMS | 10A | Battery Sensor |
| TCU1 | 10A | [DCT] TCM, [M/T] Ignition Lock & Clutch Switch |
| FUEL PUMP | 20A | E/R Junction Block (Fuel Pump Relay) |
| CVVD | 40A | [G4FP] CVVD Actuator |
| ABS1 | 40A | ABS Control Module, ESC Control Module, Multipurpose Check Connector |
| ABS2 | 30A | ABS Control Module, ESC Control Module, Multipurpose Check Connector |
| EOP1 | 30A | Electronic Oil Pump |
| POWER OUTLET1 | 40A | E/R Junction Block (Power Outlet Relay) |
| WIPER | 25A | Wiper Relay |
| ECU4 | 15A | PCM/ECM |
| A/C | 10A | [G4FM] A/C Relay |
| HORN | 15A | Horn Relay |
| IGN COIL | 20A | Ignition Coil #1~#4 |
| ECU3 | 15A | PCM/ECM |
| SENSOR3 | 10A | E/R Junction Block (Fuel Pump Relay) |
| ECU2 | 15A | PCM/ECM |
| SENSOR2 | 10A | Ecn7sd21100en.EPS |
| ECU5 | 10A | CVVD Actuator, ECM/PCM, Ignition Lock & Clutch Switch |
| SENSOR1 | 15A | Oxygen Sensor (UP/DOWN) |
| ABS3 | 10A | ABS Control Module, ESC Control Module, Multipurpose Check Connector |
| INJECTOR | 15A | [G4FM/G4FG/G4NA] Injector #1~#4 |
| ECU1 | 20A | PCM/ECM |
| TCU2 | 15A | Transaxle Range Switch, [G4FP] TCM |
