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ToggleHyundai i40 (2015 – 2019) Fuse Box Diagrams & Location
Locate the fuse boxes and explore detailed fuse diagrams for the Hyundai i40 (2015–2019). This blog helps you identify every fuse and relay, understand their functions, and quickly troubleshoot common electrical issues, making maintenance and fuse replacement easier for owners and DIY enthusiasts.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse box is located on the driver’s side of the instrument panel behind the cover.

Engine Compartment Fuse Box
The fuse box is located in the engine compartment (left side).



Fuse Box Diagrams
Passenger Compartment Fuse Box

| No. | Fuse rating | Fuse Name | Protected component |
| 1 | 20A | POWER OUTLET 2 | Console Power Outlet, Rear Power Outlet |
| 2 | 30A | POWER TAIL GATE | Power Tailgate Control Module |
| 3 | 10A | MODULE 1 | Smart Key Control Module, BCM, Audio, AMP, JBL AMP, A/V & Navigation Head Unit, DC-DC Converter (Audio), Overhead Console Lamp, DC-DC Converter (AMP), Power Outside Mirror Switch |
| 4 | 15A | MODULE 4 | Head Lamp Levelling Device Actuator LH/RH, Crash Pad Switch, Adaptive Front Lighting Module |
| 5 | 7.5A | MODULE 3 | Smart Key Control Module, BCM, Panorama Sunroof, Rain Sensor, Driver/Passenger CCS Control Module, EMS Block (Head Lamp Washer Relay), Water Thermo Switch |
| 6 | 15A | POWER OUTLET 1 | Front Power Outlet, Cigarette Lighter |
| 7 | 20A | P/SEAT PASS | Passenger Seat Manual Switch |
| 8 | 10A | HTD MIR | Driver/Passenger Power Outside Mirror, ECM/PCM, A/C Control Module |
| 9 | 25A | AMP | AMP, JBL AMP, DC-DC Converter (AMP) |
| 10 | 25A | WIPER FRT | ICM Relay Box (Rain Sensor Relay), Multifunction Switch, E/R Junction Block (RLY. 7), Front Wiper Motor |
| 11 | 7.5A | A/CON | E/R Junction Block (RLY. 4), EMS Block (Fuel Heater Relay), Diesel Block (PTC Heater Relay #2/#3), A/C Control Module |
| 12 | 15A | STEERING WHEEL HEATER | Clock Spring (Steering Wheel Heater) |
| 13 | 25A | P/WDW LH | Power Window LH Relay, Power Window Main Switch, Driver/Passenger Safety Power Window Module, Rear Safety Power Window Module LH, Passenger Power Window Switch |
| 14 | 10A | TAIL GATE OPEN / TRUNK OPEN | Tail Gate Open Relay, Trunk Lid Latch (SEDAN), Power Tail Gate Latch/Tail Gate Latch (WAGON), ICM Relay Box (Fuel Filler Lock/Unlock Relay) |
| 15 | 30A | P/SEAT DRV | Driver IMS Module, Driver Seat Manual Switch |
| 16 | 10A | MODULE 2 | BCM, Crash Pad Switch, Multipurpose Check Connector, Stop Lamp Switch, Active Air Flap Unit, Glow Relay Unit, A/C Control Module, Smart Parking Assist Control Module, A/V & Navigation Head Unit, DC-DC Converter, ECS Module, Lane Keeping Assist Module, Electro Chromic Mirror, Parking Assist Sensor, Tire Pressure Monitoring Module, Driver/Passenger CCS Control Module, ATM Shift Lever IND. Console Switch, Driver/Passenger Seat Warmer Module |
| 17 | 15A | WIPER RR / CURTAIN | Rear Wiper Relay, Rear Wiper Motor, Multifunction Switch, Rear Curtain Module |
| 18 | 10A | BRAKE SWITCH | Stop Lamp Switch, Smart Key Control Module |
| 19 | 25A | P/WDW RH | Power Window RH Relay, Power Window Main Switch, Passenger Power Window Switch, Driver/Passenger Safety Power Window Module, Rear Safety Power Window Module RH |
| 20 | 10A | IMMO. 1 | Smart Key Control Module, Start/Stop Button Switch, Immobilizer Module |
| 21 | 7.5A | MODULE 5 | Driver/Passenger Smart Key Outside Handle, Driver/Passenger Power Outside Mirror, Active Air Flap Unit, Rear Seat Warmer Switch LH/RH, Auto Light & Photo Sensor, Sport Mode Switch, Key Solenoid |
| 22 | 20A | IG1 | E/R Junction Block (Fuse – F27, F28, F29, F30, F31) |
| 23 | 10A | MODULE 6 | Instrument Cluster, Sport Mode Switch, Front Seat Warmer & CCS Switch LH/RH, Electronic Parking Brake Module |
| 24 | 10A | MDPS | MDPS Unit |
| 25 | 20A | DR LOCK | Door Lock/Unlock Relay, ICM Relay Box (Dead Lock Relay), Driver/Passenger Door Lock Actuator, Rear Door Lock Actuator LH/RH |
| 26 | 15A | S/HEATER FRT | Driver/Passenger CCS Control Module, Driver/Passenger Seat Warmer Module |
| 27 | 10A | INTERIOR LAMP | Driver/Passenger Door Lamp, Overhead Console Lamp, Room Lamp, Glove Box Lamp, Luggage Lamp LH/RH, Driver/Passenger Foot Lamp, Trunk Room Lamp, Rear Personal Lamp LH/RH, Vanity Lamp LH/RH |
| 28 | 15A | MULTI MEDIA | Audio, A/V & Navigation Head Unit, DC-DC Converter (Audio) |
| 29 | 15A | A/BAG | SRS Control Module |
| 30 | 10A | MODULE 7 | Rear Curtain Module, ECS Module |
| 31 | 7.5A | MEMORY 1 | Instrument Cluster, Tire Pressure Monitoring Module, Rear Curtain Module, Tilt Sensor, A/C Control Module, BCM, Ultrasonic Intrusion Protection Sensor, Siren Control Module, Driver IMS Module, Power Outside Mirror Switch |
| 32 | 7.5A | A/BAG IND | Instrument Cluster (IND.) |
| 33 | 7.5A | IMMO. 2 | Smart Key Control Module, Immobilizer Module |
| 34 | 10A | S/HEATER RR | Rear Seat Warmer LH/RH |
| 35 | 7.5A | MEMORY 2 | RF Receiver |
| 36 | 10A | PDM 1 | Smart Key Control Module |
| 37 | 7.5A | START |
W/O Button Start: E/R Junction Block (RLY. 8), Ignition Lock Switch, Transaxle Range Switch With Button Start: ECM/PCM, Transaxle Range Switch |
| 38 | 20A | SUNROOF | Panorama Sunroof |
Engine Compartment Fuse Box
Main Fuse Box

| No. | Type / Rating / Name | Protected Component / Description |
|---|---|---|
| 1 | MULTI FUSE • 80A • MDPS1 | MDPS Unit |
| 2 | MULTI FUSE • 60A • B+1 | Smart Junction Box (IPS 0 (4CH), IPS 1 (4CH), IPS 2 (2CH), Fuse – F13/F14/F19/F20/F21/F26/F36) |
| 3 | MULTI FUSE • 40A • ABS1 | ESC Control Module, Multipurpose Check Connector |
| 4 | MULTI FUSE • 40A • ABS2 | ESC Control Module, Multipurpose Check Connector |
| 5 | MULTI FUSE • 40A • IG2 | RLY. 9 (Start Relay), Ignition Switch (W/O Button Start), RLY. 6 (PDM 4 (IG2) Relay – With Button Start) |
| 6 | MULTI FUSE • 40A • RR HTD | RLY. 11 (RR HTD Relay) |
| 7 | MULTI FUSE • 60A • B+2 | Smart Junction Box (IPS 3 (4CH), IPS 4 (4CH), Fuse – F2/F7/F9/F15) |
| 8 | FUSE • 40A • TCU3 TCM | TCM (D4FD-DCT) |
| 9 | FUSE • 40A • TCU4 TCM | TCM (D4FD-DCT) |
| 10 | FUSE • 50A • C/FAN | Cooling Fan Low & High Relays |
| 11 | FUSE • 40A • DCU | DCU Dosing Control Unit |
| 12 | FUSE • 15A • HORN | Horn Relay, Burglar Alarm Horn Relay |
| 13 | FUSE • 15A • H/LP HI | High Beam Headlamp Relay |
| 14 | FUSE • 15A • STOP LP | Stop Signal Electronic Module |
| 15 | FUSE • 20A • H/LP WASHER | Headlamp Washer Relay |
| 16 | FUSE • 10A • TCU2 TCM | TCM (D4FD-DCT) |
| 17 | FUSE • 40A • IG1 | Ignition Switch / PDM ACC & IG1 Relays |
| 18 | FUSE • 40A • EMS | EMS Block (Engine Control Relay) |
| 19 | FUSE • 50A • B+3 | Smart Junction Box (Leak Current Autocut Device) |
| 20 | FUSE • 50A • BLOWER | Blower Relay |
| 21 | FUSE • 10A • A/CON SW | A/C Control Module |
| 22 | FUSE • 10A • WIPER FRT | ECM/PCM, Rain Sensor, Front Wiper Relay & Motor |
| 23 | FUSE • 15A • TCU1 A/T | TCM, Transaxle Range Switch |
| 24 | FUSE • 10A • B/UP LP | Back-Up Lamp Circuit, Audio & Navigation |
| 25 | FUSE • 15A • ECU3 | ECM/PCM, Air Flow Sensor, PM Sensor |
| 26 | FUSE • 10A • ABS3 | ESC Control Module |
| 27 | FUSE • 15A • IGN COIL 2 | Ignition Coils, Condenser, NOx Sensor |
| 28 | FUSE • 30A • F/HEAT | Fuel Heater Relay |
| 29 | FUSE • 15A • ECU4 | ECM / PCM |
| 30 | FUSE • 20A • F/PUMP | Fuel Pump Relay |
| 31 | FUSE • 10A • INJECT | Injector/Fuel System Components |
| 32 | FUSE • 10A • ECU2 | ECM/PCM, Electronic VGT Actuator |
| 33 | FUSE • 20A • IGN COIL 1 | Ignition Coils |
| 34 | FUSE • 10A • SENSOR2 | Oil Level Sensor, Camshaft Position Sensor, Rail Pressure Valve |
| 35 | FUSE • 20A • ECU1 | ECM / PCM |
| 36 | FUSE • 10A • SENSOR1 | Oxygen Sensors, Air Flow Sensor, Purge Solenoid |
| R1 | RELAY • Plug Micro • C/FAN LO RELAY | Low-Speed Cooling Fan Relay |
| R2 | RELAY • Plug Micro • C/FAN HI RELAY | High-Speed Cooling Fan Relay |
| R3 | RELAY • Plug Micro • BLOWER RELAY | Blower Motor Relay |
| R4 | RELAY • Plug Micro • HORN RELAY | Horn Relay |
| R5 | RELAY • Plug Micro • PDM 4 (IG2) RELAY | Power Distribution Module (IG2) Relay |
| R6 | RELAY • Plug Micro • FRONT WIPER RELAY | Front Wiper Relay |
| R7 (A) | RELAY • Plug Micro • PDM 2 (ACC) RELAY | Power Distribution Module (ACC) Relay |
| R7 (B) | RELAY • Plug Micro • BURGLAR ALARM HORN | Burglar Alarm Horn Relay |
| R8 | RELAY • Plug Micro • START 1 RELAY | Engine Start Relay |
| R9 | RELAY • Plug Micro • PDM 3 (IG1) RELAY | Power Distribution Module (IG1) Relay |
| R10 | RELAY • Plug Mini • RR HTD RELAY | Rear Defroster/Heater Relay |
| R11 | RELAY • Plug Micro • H/LP HI RELAY | High Beam Headlamp Relay |
Additional Fuse Box (Diesel Only)

| No. | Fuse Name | Fuse Rating | Protected Component |
| 1 | GLOW | 80A | Glow Relay Unit |
| 2 | PTC HEATER #1 | 50A | PTC Heater Relay #1 |
| 3 | PTC HEATER #2 | 50A | PTC Heater Relay #2 |
| 4 | PTC HEATER #3 | 50A | PTC Heater Relay #3 |
| 1 | PTC Heater Relay #1 | – | MINI PLUG |
| 2 | PTC Heater Relay #2 | – | MINI PLUG |
| 3 | PTC Heater Relay #3 | – | MINI PLUG |
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