Table of Contents
The eighth-generation Hyundai Sonata was previewed in early March 2019 and officially unveiled on March 21, 2019, in South Korea. It made its North American debut on April 17, 2019, at the New York International Auto Show. This article provides detailed fuse box diagrams and terminal assignments for the Hyundai Sonata (Mid-size platform; chassis code DN8) for model years 2019, 2020, 2021, 2022, and 2023.
Below you will find the fuse box locations, layout diagrams, and photos for the Hyundai Sonata. Fuses for critical circuits such as the “Cigarette Lighter” (Power Outlet) and “Fuel Pump” are highlighted in bold.
Engine Compartment Fuse Box
The main fuse box is located in the engine compartment adjacent to the battery. To access the fuses, release the cover latches and lift off the protective housing cover.
Fuse box cover removal.
| Diagram | ||
|---|---|---|
|
||
| Name | Description | Rating (A) |
| IG2 | Engine Room Junction Block (Starter Relay), PCB Block (IG2 Relay) | 30 |
| BLOWER | Engine Room Junction Block (Blower Motor Relay) | 40 |
| ABS1 | Electronic Stability Control (ESC) Module | 40 |
| B+2 | Integrated Central Control Unit (ICU) Junction Block (IPS1, IPS3, IPS4; Circuit Protection: AMP, IBU1) | 50 |
| PTC HEATER | Engine Room Junction Block (PTC Heater Relay) | 50 |
| B+3 | Body Electronics Junction Block (IPS5, IPS6, IPS7, IPS8, IPS9, IPS10) | 50 |
| OIL PUMP1 | Electric Oil Pump (EOP) | 50 |
| COOLING FAN | Engine Cooling Fan Motor | 80 |
| MDPS | Motor-Driven Power Steering (MDPS) Module | 80 |
| E-SHIFTER | Shift Control Unit (SCU) | 30 |
| E-CVVT1 |
|
40 |
| IG1 | PCB Block (IG1 Relay, ACC Relay) | 40 |
| REAR HEATED | Engine Room Junction Block (Rear Defogger / Heated Window Relay) | 50 |
| EPB | Electronic Parking Brake (EPB) Module | 60 |
| B+5 | PCB Block (Engine Control Relay; Circuit Protection: A/C1, WIPER1, TCU1, HORN, ECU2) | 60 |
| B+1 | ICU Junction Block (Circuit Protection: P/SEAT (DRV), P/SEAT (PASS), MODULE1, SAFETY P/WINDOW (LH), SAFETY P/WINDOW (RH), S/HEATER (RR)) | 60 |
| HEATED MIRROR | Heated Outside Rearview Mirrors, A/C Switch, A/C Control Module, ECM | 10 |
| ECU5 | G4FN Engine: Engine Control Module (ECM) | 10 |
| AMS | Alternator Management System (AMS) / Battery Sensor | 10 |
| FUEL PUMP 1 | Engine Room Junction Block (Fuel Pump Relay) | 20 |
| A/C 2 | Air Conditioning Control Module | 10 |
| B+4 | ICU Junction Block (Memory Relay / Long-Term Load Latching Relay; Circuit Protection: MODULE3, AIRBAG2, E-SHIFTER1, SUNROOF1, SUNROOF2, S/HEATER (FRT), TRUNK, BRAKE SWITCH, DOOR LOCK) | 60 |
Passenger Compartment Fuse Box
The passenger compartment fuse box is located on the driver’s side of the instrument panel, behind a removable access cover.
Fuse box location overview.
| Diagram | ||
|---|---|---|
|
||
| Name | Description | Rating (A) |
| S/HEATER (FRT) | Front Seat Heater & Ventilation Control Module | 25 |
| TRUNK | ICU Junction Block (Trunk Lid Release Relay) | 10 |
| DOOR LOCK | Junction Block (Door Lock Relay, Door Unlock Relay, Two-Stage Door Unlock Relay) | 20 |
| MODULE1 | Key Interlock Solenoid | 7.5 |
| MODULE3 | Driver Door Module (DDM), Passenger Power Seat Module, Instrument Panel Switch, Upper Instrument Panel Switch, Front Lamp Unit, Start/Stop Button Switch, Driver/Passenger Smart Key Outside Door Handles | 10 |
| S/HEATER (RR) | Rear Seat Heater Control Module | 25 |
| P/SEAT (PASS) | Passenger Power Seat Switch, Passenger Relaxation Seat Module | 30 |
| MODULE6 | Driver Door Module (DDM) | 10 |
| SAFETY P/WINDOW (RH) | Front Passenger Safety Power Window Motor, Rear Right Safety Power Window Motor | 30 |
| P/SEAT (DRV) | Driver Power Seat Switch, Driver Integrated Memory System (IMS) Module | 30 |
| IBU1 | Integrated Body Control Unit (IBU), Driver/Passenger Door NFC Module, Integrated Antenna Unit (IAU), Bluetooth Low Energy (BLE) Module, Ignition Switch | 15 |
| AMP | Audio Power Amplifier, DC-DC Converter | 25 |
| SAFETY P/WINDOW (LH) | Driver Safety Power Window Motor, Rear Left Safety Power Window Motor | 30 |
| BRAKE SWITCH | Integrated Body Control Unit (IBU), Brake Light Switch | 10 |
| SUNROOF2 | Panoramic Sunroof Module, Data Link Connector (DLC / OBD-II Port) | 20 |
| AIR BAG2 | Supplemental Restraint System (SRS Airbag) Control Module | 10 |
| AIR BAG1 | Supplemental Restraint System (SRS Airbag) Control Module, Occupant Detection System (ODS) Sensor | 15 |
| E-SHIFTER1 | Shift Control Unit (SCU), Electronic Shift Lever Module | 10 |
| MEMORY | Driver Integrated Memory System (IMS) Module, Passenger Airbag Off Indicator, A/C Switch, Power Outside Rearview Mirrors, A/C Control Module, Instrument Cluster, Rain Sensor, Head-Up Display (HUD) | 10 |
| MULTI MEDIA | Audio/Navigation Head Unit, DC-DC Converter (Audio/AMP) | 15 |
| SUNROOF1 | Panoramic Sunroof Control Module | 20 |
| MODULE7 | Front Console Switch, Lane Keeping Assist (LKA) Module, IBU, Instrument Panel Switch, Parking Collision-Avoidance Assist (PCA) Module, Remote Smart Parking Assist (RSPA) Module | 10 |
| MODULE5 | Brake Light Switch | 10 |
| MODULE8 | Front Seat Heater Module, Front Seat Ventilation Module, Passenger Relaxation Seat Module, Audio Power Amplifier, Rear Seat Heater Module, Driver IMS Module, Audio/Navigation Head Unit | 10 |
| E-SHIFTER2 | Shift Control Unit (SCU), Electronic Shift Lever Module | 10 |
| MODULE2 | Integrated Antenna Unit (IAU), Parking Assist Module, Engine Cooling Fan Relay, Passenger Relaxation Seat Module, Rear Seat Heater Control Module | 10 |
| MDPS | Motor-Driven Power Steering (MDPS) Module | 7.5 |
| A/C | A/C Control Module, A/C Switch, Engine Room Junction Block (Blower Relay, PTC Heater Relay) | 7.5 |
| MODULE4 | Front & Rear USB Charging Ports, Audio Power Amplifier, IBU, IAU, Parking Collision-Avoidance Assist (PCA) Module, Audio Head Unit, DC-DC Converter (Audio), Surround View Monitor (SVM) Module | 10 |
| MODULE9 | Integrated Body Control Unit (IBU) | 7.5 |
| CLUSTER | Instrument Cluster, Head-Up Display (HUD) | 10 |
| WASHER | Multifunction Switch, Windshield Washer Motor | 15 |
| START | Powertrain Control Module (PCM) / Engine Control Module (ECM), Engine Room Junction Block (Starter Relay), ICU Junction Block (Burglar Alarm Relay) | 7.5 |
| POWER OUTLET | Hyundai Sonata Cigarette Lighter / Power Outlet Fuse | 20 |
| IBU2 | Integrated Body Control Unit (IBU) | 7.5 |
| A/BAG IND | Instrument Cluster, Overhead Console Lamp (Passenger Airbag Indicator) | 7.5 |