2023 Hyundai Nexo Fuel Cell Fuse Box Diagram
The 2 fuse boxes on the 2023 Hyundai Nexo Fuel Cell, with every fuse and relay. Tap a fuse to see what it protects, or search for the thing that stopped working.
Where it isInside the car, under or behind the dashboard. Page 7-50 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 7-50 of your owner's manual.
Where it isUnder the hood in the engine bay. Page 7-54 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 7-54 of your owner's manual.
2023 Nexo Fuel Cell interior panel fuses
Instrument panel fuse panel. Tap a row to find it on the diagram.
| No. | Amps | Type | Protects |
|---|---|---|---|
| MEMORY1 | 10A | Fuse (size not listed) | Power Tail Gate Module, A/C Control Module, A/C Control Panel |
| MODULE1 | 10A | Fuse (size not listed) | ICM Relay Box (Outside Mirror Folding/Unfolding Relay), A/V & Navigation Head Unit (Hazard Shift Selection Switch (SBW), Auto Light & Photo Sensor, Driver/Passenger Power Outside Mirror, Instrument Cluster |
| TAIL GATE OPEN | 10A | Fuse (size not listed) | Tail Gate Relay |
| P/WINDOW RH | 25A | Fuse (size not listed) | Power Window RH Relay |
| P/WINDOW LH | 25A | Fuse (size not listed) | Power Window LH Relay, Driver Safety Window Module |
| P/SEAT DRV | 25A | Fuse (size not listed) | Driver Seat Manual Switch |
| MODULE4 | 7.5A | Fuse (size not listed) | IBU, Remote Control Smart Parking Assist Unit, VESS Unit, Electronic Parking Brake Switch, Lane Keeping Assist Unit(Line), Blind-Spot Collision Warning Unit LH/RH, Crash Pad Switch, PE Room Junction Block (Multipurpose Check Connector) |
| MODULE8 | 7.5A | Fuse (size not listed) | Data Link Connector, Crash Pad Switch, Electro Chromic Mirror |
| S/HEATER RR | 20A | Fuse (size not listed) | Rear Seat Heater |
| HEATED MIRROR | 10A | Fuse (size not listed) | Driver/Passenger Power Outside Mirror, A/C Control Panel |
| S/HEATER FRT | 20A | Fuse (size not listed) | Front Air Ventilation/Seat Heater Seat Control Module |
| AMP | 25A | Fuse (size not listed) | AMP |
| MEDIA | 15A | Fuse (size not listed) | A/V & Navigation Head Unit, Center Fascia Switch Panel |
| MODULE5 | 10A | Fuse (size not listed) | Front Air Ventilation/Seat Heater Seat Control Module, AMP, A/V & Navigation Head Unit, A/C Control Panel, PTC Heater, A/C Control Module, Electro Chromic Mirror, Rear Seat Heater |
| WIPER (RR) | 15A | Fuse (size not listed) | ICM Relay Box (Rear Wiper Relay), Rear Wiper Motor |
| DOOR LOCK | 20A | Fuse (size not listed) | Door Lock Relay, Door Unlock Relay, ICM Relay Box (Two Turn Door Unlock Relay) |
| IBU1 | 15A | Fuse (size not listed) | IBU |
| BRAKE SWITCH | 10A | Fuse (size not listed) | IBU, Stop Lamp Switch |
| P/SEAT PASS | 25A | Fuse (size not listed) | Passenger Seat Manual Switch |
| A/C | 7.5A | Fuse (size not listed) | A/C Control Module, Incar Temperature Sensor, A/C Control Panel, Cluster Ionizer, A/C Compressor, PE Room Junction Block (Blower Relay) |
| AIR BAG2 | 10A | Fuse (size not listed) | SRS Control Module |
| WASHER | 15A | Fuse (size not listed) | Multifunction Switch |
| MDPS | 7.5A | Fuse (size not listed) | MDPS Unit |
| MODULE7 | 7.5A | Fuse (size not listed) | Front Air Ventilation/Seat Heater Seat Control Module, AC Inverter, Rear Seat Heater, Surround View Monitor Unit, Rear Power Outlet |
| SUNROOF2 | 20A | Fuse (size not listed) | Sunroof Unit |
| SUNROOF1 | 20A | Fuse (size not listed) | Sunroof Unit |
| CLUSTER | 7.5A | Fuse (size not listed) | Instrument Cluster |
| MODULE3 | 7.5A | Fuse (size not listed) | SCU, Shift Selection Switch (SBW), IDC, VPD Sensor, Stop Lamp Switch, HMU, BMS Control |
| START | 7.5A | Fuse (size not listed) | FCU, IBU |
| IBU2 | 7.5A | Fuse (size not listed) | IBU |
| A/BAG IND | 7.5A | Fuse (size not listed) | Instrument Cluster, A/C Control Panel |
| MODULE6 | 7.5A | Fuse (size not listed) | IBU |
| MODULE2 | 10A | Fuse (size not listed) | BMS Control Module, Wireless Charger, USB Charger LH/RH, A/V & Navigation Head Unit, Center Fascia Switch Panel, AMP, Surround View Monitor Unit, Power Outside Mirror Switch, IBU |
| AIR BAG1 | 15A | Fuse (size not listed) | SRS Control Module, Passenger Occupant Detection Sensor |
2023 Nexo Fuel Cell engine bay fuses
Motor compartment fuse panel. Tap a row to find it on the diagram.
| No. | Amps | Type | Protects |
|---|---|---|---|
| B+2 | 60A | Fuse (size not listed) | ICU Junction Block (IPS Control Module, IPS1) |
| B+3 | 60A | Fuse (size not listed) | ICU Junction Block (IPS Control Module) |
| COOLING PE PUMP | 40A | Fuse (size not listed) | PE Room Coolant Pump (CPP) |
| EPB2 | 40A | Fuse (size not listed) | Electronic Brake Control Module |
| IG2 | 40A | Fuse (size not listed) | PE Room Junction Block (IG2 Relay) |
| EPB1 | 40A | Fuse (size not listed) | Electronic Brake Control Module, PE Room Junction Block (Multipurpose Check |
| B+4 | 60A | Fuse (size not listed) | ICU Junction Block (Fuse - SUNROOF1, SUNROOF2, AMP, P/SEAT DRV, P/SEAT PASS, S/HEATER FRT, P/WINDOW LH, P/WINDOW RH, TAIL GATE OPEN) |
| IMEB | 80A | Fuse (size not listed) | Electronic Brake Control Module |
| BLOWER | 50A | Fuse (size not listed) | PE Room Junction Block (Blower Relay) |
| MDPS | 80A | Fuse (size not listed) | MDPS Unit |
| HVJB LV | 15A | Fuse (size not listed) | HV Junction Block |
| RCU | 15A | Fuse (size not listed) | Driver / Passenger Auto Flush Door Handle Module, Rear Auto Flush Door Handle Module LH/RH |
| FUEL DOOR OPEN | 7.5A | Fuse (size not listed) | ICM Relay Box (Fuel Filler Door Relay) |
| E-SHIFTER | 40A | Fuse (size not listed) | PE Room Junction Block (E-Shifter Relay) |
| INVERTER | 30A | Fuse (size not listed) | AC Inverter |
| REAR HEATED | 40A | Fuse (size not listed) | PE Room Junction Block (Rear Heated Relay) |
| B+1 | 50A | Fuse (size not listed) | ICU Junction Block ((Fuse - MODULE1, AIR BAG2, MODULE8, S/HEATER RR, DOOR LOCK, IBU1, BRAKE SWITCH), Leak Current Autocut |
| POWER TAIL GATE | 30A | Fuse (size not listed) | Power Tail Gate Module |
| WIPER FRT | 30A | Fuse (size not listed) | Front Wiper Motor |
| COOLING STACK PUMP | 10A | Fuse (size not listed) | Stack Coolant Pump (CSP) |
| INVERTER LV | 7.5A | Fuse (size not listed) | Inverter |
| BHDC | 7.5A | Fuse (size not listed) | IDC |
| HMU1 | 10A | Fuse (size not listed) | HMU |
| BATTERY MANAGEMENT | 10A | Fuse (size not listed) | BMS Control Module |
| FUEL CELL CONTROL UNIT | 15A | Fuse (size not listed) | FCU |
| BMS FAN | 15A | Fuse (size not listed) | PE Room Junction Block (BMS FAN Relay) |
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: 2023 Hyundai NEXO fuel cell Owner's Manual, "Fuses" section, p. 7-50 and 7-54.
Always replace a fuse with one of the same amp rating. If a new fuse blows straight away, the circuit has a fault.