Hyundai Custo 2023 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, behind the cover.
Engine compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay Name | Rating | Functions |
| S/HEATER FRT | 20A | Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module |
| TAILGATE OPEN | 10A | Tailgate Relay |
| DOOR LOCK | 20A | Door Lock Relay, Door Unlock Relay |
| E-SHIFTER1 | 10A | SCU, Electronic ATM Shift Lever |
| MODULE8 | 10A | Power Outside Mirror Switch |
| A/BAG IND | 7.5A | Instrument Cluster (Air Bag IND.) |
| AIR BAG | 15A | SRS Control Module |
| USB CHARGER2 | 20A | Rear USB Charger #1/#2 |
| MODULE6 | 7.5A | IBU |
| SAFETY P/ WINDOW LH |
25A | Driver Safety Power Window Module, Rear Safety Power Window Module LH |
| SAFETY P/ WINDOW RH |
25A | Passenger Safety Power Window Module, Rear Safety Power Window Module RH |
| DOOR LOCK RR LH |
7.5A | Rear Door LH Lock Relay |
| A/C2 | 10A | Front A/C Control Module |
| MODULE4 | 7.5A | Crash Pad Switch, IBU, Front View Camera Front Console Switch, Rear Corner Radar LH/RH |
| MODULE3 | 7.5A | Stop Lamp Switch, Driver IMS Control Module |
| USB CHARGER1 | 10A | Front USB Charger, Rear A/C Control Module |
| WIPER RR | 15A | E/R Junction Block (Rear Wiper Relay), Rear Wiper Motor |
| RR SUNROOF | 25A | Rear Sunroof Motor |
| P/WINDOW RH | 25A | Power Window Main Switch, Passenger Power Window Switch |
| S/HEATER RR | 25A | 2nd Seat Air Ventilation Seat control Module 2nd Seat Warmer Control Module |
| IBU1 | 15A | IBU |
| MULTIMEDIA | 15A | Low DC-DC Converter |
| FCA | 10A | Front Radar Unit |
| CLUSTER | 7.5A | Instrument Cluster (IG1) |
| MODULE2 | 10A | IBU, Low DC-DC Convertor |
| A/C1 | 7.5A | Front A/C Control Module, E/R Junction Block (Blower Relay) |
| FRT SUNROOF | 20A | Front Sunroof Motor |
| P/WINDOW LH | 25A | Power Window Main Switch |
| P/SEAT (DRV) | 30A | Driver Power Seat Switch, Driver IMS Control Module |
| START | 7.5A | ECM/PCM, IBU |
| MODULE1 | 10A | Power Tailgate Unit, Data Link Connector, Crash Pad Switch, Driver/Passenger IMS Control Module, 2nd Seat LH/RH IMS Control Module, Rear Occupant Alert (ROA) Sensor, ICM Relay Box (Outside Mirror Folding/unfolding Relay) |
| MODULE5 | 7.5A | Front A/C Control Module, Low DC-DC Converter, Audio, Data Link Connector, A/V & Navigation Head Unit, Crash Pad Switch, Electro Chromic Mirror, Front/Rear Wireless Charger, Head Lamp LH/RH, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, 2nd Seat LH/RH IMS Control Module, 2nd Seat LH Air Ventilation Control Module, 2nd Seat Warmer Control Module |
| MDPS | 7.5A | MDPS Unit |
| POWER OUTLET | 15A | Power Outlet |
| MODULE7 | 7.5A | 2nd Seat LH Air Ventilation Control Module, 2nd Seat Warmer Control Module, Rear A/C Control Module, E/R Junction Block (Rear A/C Relay) |
| WASHER | 15A | Multifunction Switch |
| P/SEAT (PASS) | 30A | Passenger Power Seat Switch, Passenger IMS Control Module |
| HEATED MIRROR |
10A | ECM/PCM, Driver/Passenger Power Outside Mirror |
| BRAKE SWITCH | 10A | Stop Lamp Switch, IBU |
| MEMORY2 | 10A | Front/Rear A/C Control Module, Hazard Switch |
| IG1 | 25A | PCB Block (Fuse : TCU4, ABS2, ECU3, CVVD2) |
| IBU2 | 7.5A | IBU |
| E-SHIFTER2 | 10A | SCU, Electronic ATM Shift Lever |
| WIPER FRT | 25A | Front Wiper Motor, PCB Block (Front Wiper (Low) Relay) |
Engine compartment fuse box:
| Fuse/Relay Name | Rating | Functions |
| MDPS | 100A | MDPS Unit |
| B+3 | 60A | ICU Junction Block (Power Window Relay, Fuse - SAFETY P/WINDOW LH, SAFETY P/WINDOW RH, FRT SUNROOF, RR SUNROOF, P/SEAT (DRV), P/SEAT (PASS), S/HEATER FRT, S/HEATER RR, TAILGATE OPEN) |
| C/FAN2 | 60A | Cooling Fan2 (High) Relay |
| B+1 | 50A | ICU Junction Block (IPS1/IPS4/IPS8/IPS9/IPS10/IPS12) |
| B+4 | 40A | ICU Junction Block (Fuse - IBU1, DOOR LOCK, DOOR LOCK RR LH, BRAKE SWITCH, MODULE1, E-SHIFTER1, Long Term Load Latch Relay) |
| EPB | 60A | ESP Control Module |
| ABS1 | 40A | ESP Control Module |
| PTG | 40A | Power Tailgate Module |
| B+5 | 50A | PCB Block (Engine Control Relay, Fuse - ECU1, ECU2, HORN, A/CON, VACUUM PUMP1) |
| B+2 | 50A | ICU Junction Block (IPS2/IPS5/IPS6/IPS11) |
| IGN1 | 40A | PCB Block (IG1 Relay/ACC Relay) |
| C/FAN1 | 40A | Cooling Fan (Low) Relay |
| IGN2 | 40A | Start Relay, PCB Block (IG2 Relay) |
| BLOWER | 40A | Blower Relay |
| EOP | 30A | Electronic Oil Pump |
| RR HTD | 40A | Rear Defogger Relay |
| PSD1 | 40A | Power Sliding Door Module |
| PSD2 | 40A | Power Sliding Door Module |
| CVVD1 | 40A | [G4FS] CVVD Actuator |
| RR P/SEAT LH | 30A | 2nd Seat LH Power Seat Unit |
| RR P/SEAT RH | 30A | 2nd Seat RH Power Seat Unit |
| LDC | 25A | Low DC-DC Converter |
| AMS1 | 10A | Battery Sensor |
| RR A/CON | 15A | Rear A/C Relay |
| F/PUMP | 20A | Fuel Pump Relay |
| TCU2 | 20A | [G4FS] TCM |
| TCU3 | 20A | [G4FS] TCM |
| FUEL LID | 10A | Fuel Filler Actuator |
| VACUUM PUMP2 |
10A | ESP Control Module |
| E162/E262 | - | REAR DEFOGGER RELAY |
| E163/E263 | - | COOLING FAN2 (HIGH) RELAY |
| E164/E264 | - | BLOWER RELAY |
| E165/E265 | - | FUEL PUMP RELAY |
| E166/E266 | - | REAR WIPER RELAY |
| E167/E267 | - | COOLING FAN1 (LOW) RELAY |
| E168/E268 | - | START RELAY |
| E169/E269 | - | REAR A/C RELAY |
| AMS2 | 10A | Front Wiper (Low) Relay, Front Wiper Motor, IBU |
| SENSOR4 | 10A | [G4FS] Variable Oil Pump Solenoid Valve, Oil Control Valve (Intake/Exhaust) [G4NN] Variable Oil Pump Control Valve, Oil Control Valve (Intake/Exhaust) |
| IGN COIL | 20A | Ignition Coil #1/#2/#3/#4 |
| SENSOR1 | 10A | [G4FS] ECM, E/R Junction Block (Fuel Pump Relay) [G4NN] E/R Junction Block (Fuel Pump Relay) |
| SENSOR2 | 15A | [G4FS] ECM, Oxygen Sensor (Up/Down) [G4NN] PCM, Oxygen Sensor (Up/Down) |
| VACUUM PUMP1 |
20A | Vacuum Pump Relay |
| SENSOR3 | 10A | A/CON Relay, E/R Junction Block (Cooling Fan (High/Low) Relay), Purge Control Solenoid Valve, Canister Close Valve, RCV Control Solenoid Valve |
| A/CON | 10A | A/CON Relay |
| HORN | 15A | Horn Relay |
| ECU2 | 15A | [G4FS] ECM |
| ECU3 | 10A | PCM/ECM |
| ECU1 | 15A | PCM/ECM |
| ABS2 | 10A | ESP Control Module |
| TCU4 | 15A | Electronic Oil Pump, [G4FS] TCM |
| CVVD2 | 10A | [G4FS] CVVD Actuator |
