The 2025 Kia Sorento MQ4 is the updated fourth-generation SUV. In combustion-engine versions, the main fuse locations are the driver’s-side cabin panel and the engine compartment power distribution box, including its PCB block and main relays.
Fuse positions vary with engine, equipment and country. These tables reproduce the 2025 combustion-engine manufacturer’s assignments. Hybrid (HEV) and Plug-in Hybrid (PHEV) models have additional protection and different electrical systems. Check the fuse label fitted to the actual vehicle before testing or replacing any fuse.
Where are the 2025 Kia Sorento fuse boxes?
Passenger compartment: behind the lower dashboard trim on the driver’s side. Switch the ignition off, remove the fuse access cover and read the diagram on its inner surface.
Engine compartment: beneath the bonnet next to the battery. The protected power distribution assembly includes main fuses, PCB circuits and relays. Release the lid clips carefully, confirm the fuse label and refit the cover tightly when finished.
Cabin fuse panel
| Position | Amperage [A] | Protected circuit / function |
|---|---|---|
| A/C | 7.5 | Manual/dual automatic climate control (MTC/DATC); engine-room PTC heater 2 relay |
| BRAKE SWITCH | 7.5 | Body Domain Controller (BDC) and stop lamp switch |
| MEMORY | 10 | Instrument cluster, 450 W ISG low-voltage DC/DC converter, ambient lighting, BDC, integrated camera, MTC/DATC, ADAS parking module and rear HVAC controller |
| A/BAG IND | 7.5 | Overhead console SRS warning indicator |
| CCU | 10 | Central Communication Unit (CCU) |
| BDC1 | 7.5 | Body Domain Controller (BDC) |
| MODULE3 | 10 | CCU, DCU and stop lamp switch |
| wireless DCU | 7.5 | Wireless DCU module |
| RR A/CON | 10 | Rear HVAC controls and rear blower motor |
| CHILD LOCK | 15 | Electric child safety locks for left and right rear doors |
| MULTI MEDIA1 | 25 | 200 W ISG low-voltage DC/DC converter and ccNC infotainment system |
| MODULE5 | 7.5 | Wireless charger, OBD port, MTC/DATC, ECM/DCM mirror, built-in camera, ccNC, 200/450 W ISG low-voltage DC/DC converters, front seat control, amplifier and HLLD headlamp levelling |
| CLUSTER | 7.5 | Instrument cluster |
| 2nd ROW SEAT FOLDING LH | 20 | Left second-row seat folding actuator |
| 2nd ROW SEAT FOLDING RH | 20 | Right second-row seat folding actuator |
| MODULE8 | 10 | Auxiliary lithium battery module |
| T/GATE OPEN | 10 | Tailgate latch |
| MODULE6 | 7.5 | Multifunction switch and main power window switch |
| MDPS | 7.5 | Motor-driven power steering (MDPS/EPS) |
| MODULE2 | 10 | ccNC keypad, BDC, CCU, USB chargers, built-in camera, ccNC, MTC, DCU, overhead console, amplifier and ADAS parking module |
| P/SEAT PASS | 30 | Passenger power seat motor |
| S/HEATER FRT | 25 | Left and right front heated and ventilated seats |
| WASHER | 15 | Multifunction switch and washer system |
| BDC2 | 10 | BDC, driver/passenger exterior handles, automatic transmission selector, Digital Key 2.0 module and sensor |
| A/BAG2 | 10 | Airbag control unit |
| HEATED MIRROR | 7.5 | Heated left/right power door mirrors |
| A/BAG1 | 10 | Airbag control unit |
| USB CHARGER | 15 | Left and right luggage compartment USB chargers and front seat USB chargers |
| MULTI MEDIA2 | 10 | Instrument cluster, MTC, wireless charger, ADAS parking module and rear corner radars; manufacturer manual labels this MULTI MEDAI2 |
| P/WINDOW RH | 25 | Right electric window motor |
| SUNROOF | 30 | Panoramic sunroof motor |
| S/HEATER RR | 15 | Left and right second-row heated seats |
| AMP | 25 | Audio amplifier and 450 W ISG low-voltage DC/DC converter |
| MODULE4 | 10 | Front camera, steering column adjustment, dash and console switches, driving/parking ADAS modules, front/rear corner radars, 4WD controller, DCU and front radar |
| P/SEAT DRV | 30 | Driver power seat motor |
| DR LOCK | 20 | Central locking and unlocking of all doors |
| 4WD | 20 | Four-wheel drive (4WD) control module |
| START | 7.5 | Ignition switch |
| POWER TAILGATE | 30 | Power tailgate module |
| P/WINDOW LH | 25 | Left electric window motor |
Engine compartment fuses and main power distribution
| Position | Amperage [A] | Protected circuit / function |
|---|---|---|
| COOLING FAN | 80 / 100 | Cooling fan motor; fuse rating is 80 A or 100 A depending on version |
| B+2 | 40 | Power Distribution Centre (PDC) module |
| BLOWER | 50 | Blower relay |
| ABS1 | 40 | ABS/ESC |
| ABS2 | 30 | ABS/ESC |
| TRAILER1 | 50 | Trailer control module |
| MDPS1 | 100 | Motor-driven power steering (MDPS/EPS) |
| AUX BATT | 60 | Auxiliary lithium battery module |
| B+3 | 60 | Power Distribution Centre (PDC) module |
| B+6 | 60 | PCB fuse block |
| REAR HEATED | 40 | Rear window defogger relay |
| B+1 | 50 | Power Distribution Centre (PDC) module |
| ABS3 | 60 | ABS/ESC |
| B+4 | 50 | Power Distribution Centre (PDC) module |
| FUEL PUMP | 20 | Fuel pump relay |
| HEAD LAMP RH | 20 | Right headlamp |
| HEAD LAMP LH | 20 | Left headlamp |
| PTC HEATER | 50 | PTC heater relay 1 |
| TCU3 | 60 | Dual-clutch transmission (DCT) controller |
| EOP1 | 60 | Electric oil pump |
| B+5 | 40 | Power Distribution Centre (PDC) module |
| TRAILER2 | 20 | Trailer control module |
| TRAILER3 | 20 | Trailer control module |
| TCU1 | 15 | Transmission Control Unit (TCU) |
| AMS | 10 | Battery sensor |
| E-CVVT1 | 50 | E-CVVT relay |
| EOP2 | 30 | Electric oil pump |
| VACUUM PUMP1 | 20 | Vacuum pump relay |
| E-CVVT2 | 20 | Smartstream 2.5 T-GDi engine ECU |
| E-CVVT3 | 20 | Smartstream 2.5 T-GDi engine ECU |
| VACUUM PUMP2 | 20 | ABS/ESC |
PCB fuse block in the engine compartment
The PCB block is part of the under-hood power distribution assembly. It protects the engine controller and ignition, wipers, fuel pump circuits, A/C, horns, 12 V power outlets and transmission controller.
| Position | Amperage [A] | Protected circuit / function |
|---|---|---|
| IG1 | 40 | IG1 and ACC relays |
| IG2 | 40 | IG2 and starter relays |
| FRT WIPER2 | 7.5 | BDC and engine ECU |
| SENSOR6 | 15 | Fuel injectors 1-4 |
| SENSOR1 | 20 | Ignition coils 1-4 |
| ECU2 | 10 | Engine ECU |
| SENSOR5 | 10 | Fuel pump relay and engine ECU |
| SENSOR3 | 20 | Engine ECU |
| SENSOR2 | 15 | Upstream and downstream oxygen sensors |
| FRT WIPER1 | 30 | Front wiper motor and high/low-speed relays |
| RR WIPER | 15 | Rear wiper motor and rear wiper relays |
| HORN | 15 | Horn relay |
| A/C | 10 | A/C compressor relay |
| B/ALARM HORN | 15 | Alarm siren relay |
| SENSOR4 | 10 | Cooling fan, variable intake system, exhaust recirculation and oil control valves, EVAP canister valve, variable oil pump valve, oil level sensor and purge valve |
| SENSOR7 | 10 | Electric oil pump |
| ECU1 | 15 | Engine ECU |
| ABS4 | 7.5 | ABS/ESC |
| POWER OUTLET2 | 20 | Rear centre console power socket |
| POWER OUTLET1 | 20 | Luggage compartment 12 V power socket |
| TCU2 | 10 | TCU and dual-clutch transmission selector |
Engine compartment relays
The relay-type column records the original MICRO or MINI case designation rather than an amperage value.
| Position | Relay type | Protected circuit / function |
|---|---|---|
| Start Relay | MICRO | Starter motor |
| Fuel Pump Relay | MICRO | Fuel pump |
| PTC Heater Relay | MICRO | PTC heater |
| Blower Relay | MINI | Cabin blower |
| Rear Heated Relay | MICRO | Rear window defogger |
| E-CVVT Relay | MICRO | E-CVVT system |
| Vacuum Pump Relay | MICRO | Vacuum pump |
12 V power outlets, USB, trailer and 4WD
The luggage compartment 12 V outlet is protected by POWER OUTLET1 (20 A), while POWER OUTLET2 (20 A) covers the outlet at the rear of the centre console. USB CHARGER (15 A) is a separate cabin fuse for USB charging ports.
Trailer equipment has three documented under-hood feeds: TRAILER1 (50 A), TRAILER2 (20 A) and TRAILER3 (20 A). The cabin 4WD fuse (20 A) serves the four-wheel-drive controller. If towing equipment stops working, inspect the affected circuit and trailer harness rather than assuming that one fuse supplies all trailer systems.
See the related 2025 Hyundai Santa Fe MX5 fuse diagrams or the 2025 Kia Sportage NQ5 fuse guide. Their layouts are not interchangeable with the Sorento.
Kia Sorento MQ4 2025 FAQ
Which fuse powers the fuel pump?
FUEL PUMP (20 A) is in the engine compartment. In the PCB block, SENSOR5 (10 A) also includes the fuel pump relay and engine controller.
Which fuses protect the 12 V sockets?
POWER OUTLET1 (20 A) supplies the luggage compartment socket; POWER OUTLET2 (20 A) supplies the rear centre console outlet.
Where should I check the four-wheel-drive fuse?
The 4WD fuse (20 A) is in the cabin. If it is intact, faults may still lie in the wiring, sensors or drivetrain control module.
Can I use this table for Sorento 2025 HEV or PHEV?
No. These tables describe the combustion-engine model. Hybrid powertrains have their own equipment and high-voltage protection, requiring matching vehicle-specific documentation.