Kia Optima К5 (2020 – 2025) fuse and relay

The Kia Optima 5 th generation was produced in 2020, 2021, 2022, 2023, 2024, 2025. In some countries it is sold under the name Kia K5. In this material we will present a description of Kia Optima K5 fuses with fuse box diagram diagrams, their locations and photo examples of execution. Let’s show the cigarette lighter fuses.


The purpose of fuses and relays may differ from those presented and depend on the year of manufacture and the level of electrical equipment of your car.

Engine compartment

Under the hood in the engine compartment on the left side there is a block with fuses and relays, closed with a protective cover.

Location 2


Diagram 2


ALT200A Main fuse (on battery)
IG230A Engine Compartment Junction Block (Start Relay), Circuit Board Assembly (Ignition Switch 2 Relay)
ABS140A ESC (Electronic Stability Control) Module
B+250A ICU Junction Block (Instrument Panel Module-!, Instrument Panel Module3, Instrument Panel Module4, Fuse – AMP (Amplifier), IBU (Integrated Body Control Unit)1)
BLOWER40A/50A Engine Compartment Junction Block (Blower Relay)
B+350A ICU Junction Block (Instrument Panel Module 5, Instrument Panel Module 6, Instrument Panel Module 7, Instrument Panel Module 8, Instrument Panel Module 9, Instrument Panel Module 10, Instrument Panel Module 11)
B+150A ICU Junction Block (Fuse – P/SEAT (Driver), P/SEAT (PASS), CHILD LOCK, MODULE 1, S/HEATER (RR), SAFETY P/WINDOW (Left Handle Side), SAFETY P/WINDOW ( right side of the handle) )
COOLING FAN80A Cooling Fan Motor
MDPS / EPS80A MDPS/EPS (Electric Power Steering) Unit
CWD130/40A G1.6 T-GDi: CWD drive
E-CWT140A G2.5 T-GDi: Engine room distribution block (E-CWT relay)
IG140A PCB Assembly (Ignition Switch Relay, ACC Relay)
REAR HEATED50A Engine Compartment Junction Block (Rear Heater Relay)
EPB60A ESC (Electronic Stability Control) Module
B+560A PCB Assembly (Engine Control Relay, A/C Fuse!, WIP-ER1, TCU (Transmission Control Unit)1, Horn, ECU (Engine Control Unit)2)
OIL PUMP160A G1.6 T-GDi: Electronic oil pump
OIL PUMP60A [Smartstream G 25 T-GDi] Electronic Oil Pump
POWER OUTLET140A PCB Unit (Socket Relay)
W/S HEATED GLASS RH40A W/S Relay on right handle with heated glass
W/S HEATED GLASS LH40A W/S Relay on left handle with heated glass
TCU560A G2.5 T-GDi: TCM (Transmission Control Module)
ECU510A G1.6 T-GDi: ECM (Engine Control Module)
AMS10A Battery Sensor
VACUUM PUMP120A G2.5 T-GDi: Vacuum relay
4WD20A G1.6 T-GDi: 4WD audio/video ECU (engine control unit)
FUEL PUMP120A Engine Compartment Junction Block (Fuel Pump Relay)
VACUUM PUMP210A G2.5 T-GDi: ESC (Electronic Stability Control) module
E-CWT320A G2.5 T-GDi: ECM (Engine Control Module)
HEATED MIRROR10A Air conditioner switch
E-CWT420A G2.5 T-GDi: ECM (Engine Control Module)
WIPER130A Circuit Board Assembly (Wiper Relay)
WIPER210A IBU (Integrated Body Control Unit), ECM (Engine Control Module)
TCU120A TCM (Transmission Control Module)
ECU215A ECM (Engine Control Module)
ECU120A ECM (Engine Control Module)
ECU415A ECM (Engine Control Module)
TCU215A TCM (Transmission Control Module), Transmission Range Switch
A/C110A Engine Compartment Junction Block (A/C Relay)
INJECTOR15A G2.5 T-GDi: Injector #1 ~ #4
SENSOR115A Oxygen sensor (up/down)
OIL PUMP210A G1.6 T-GDi: Electronic oil pump
CWD210A G1.6 T-GDi: CWD drive
POWER OUTLET210A Front socket, left handle side
POWER OUTLET320A Front USB Charger
HORN20A PCB Unit (Horn Relay)
SENSOR210A Oil Control Valve (Inlet/Outlet), Variable Oil Pump Solenoid Valve, Purge Control Solenoid Valve, RCV (Recirculation Valve Control) Control Solenoid Valve, Canister Close Valve, Engine Room Junction Block (A/C Relay)
FUEL PUMP210A Engine Compartment Junction Block (Fuel Pump Relay)
ECU310A ECM (Engine Control Module)
ABS310A ESC (Electronic Stability Control) Module
IGN COIL20A Ignition Coil #1 ~ #4
CRUISE10A Forward radar

The fuses designated as POWER OUTLET are responsible for the operation of the cigarette lighter. Another one will be located in the block in the cabin.

Passenger compartment

Inside the car, the fuse box is located in the lower left part of the instrument panel, behind the protective cover.



Diagram 1


S/HEATER (FRT)25A Heated Front Seat Control Module, Front Ventilated Seat Control Module
TRUNK10A Trunk Lid Relay
DOOR LOCK20A Door Lock Relay, Door Unlock Relay
MODULE 17.5A Front Console Switch #1, Key Solenoid, Driver/Passenger Smart Key External Handle
CHILD LOCK15A Rear Child Lock Relay, Rear Child Lock Relay
MODULE310A Hazard Light Switch, Front Lamp, Right Side Handle, Front Lamp Assembly, Driver Door Module, Driver/Passenger Door Lamp
S/HEATER (RR)25A Rear seat heating control module
P/SEAT (PASS)30A Passenger Seat Manual Switch
MODULE610A Sport Mode Switch, Driver Door Module
SAFETY P/WINDOW (RH)30A Passenger Power Window Switch, Passenger Safety Power Window Module, Rear Power Window Switch, Handle Right Side, Rear Power Window Module, Handle Right Side
P/SEAT (DRV)30A Manual Driver Seat Switch, Driver IMS (Integrated Memory System) Module
IBU115A Ignition switch, IBU (Integrated Body Unit)
IAUNot used
AMP25A DC/DC Converter (AMP (Amplifier)), AMP (Amplifier)
SAFETY P/WINDOW (LH)30A Driver Safety Power Window Module Rear Power Window Switch Left Handle Side Rear Safety Power Window Module Left Handle Side
SPARE1Not used
BRAKE SWITCH10A IBU (Integrated Body Control Unit), Brake Light Switch
SUNROOF220A Sunroof Controller (Louver Motor), Data Link Connector
AIR BAG210A SRS (Supplemental Restraint System) Control Module
AIR BAG115A SRS control module (supplemental restraint system)
MEMORY10A Head-up Display, Driver IMS (Integrated Memory System), Driver/Passenger Power Outside Mirror, Rain Sensor, Instrument Cluster, A/C Control Module, A/C Switch
MULTIMEDIA15A DC/DC Converter (Audio), Audio, Audio/Video and Navigation Head Unit
SUNROOF120A Sunroof Controller (Window Motor)
MODULE710A Audio/Video 4WD (All Wheel Drive), ECU (Engine Control Unit), Front Console No. 1/No. 2 Switch, Lane Keeping Assist Unit, IBU (Integrated Body Unit), Hazard Panel Switch, Prevent System Unit collisions when parking
MDOULE510A Brake light switch
M0DULE810A AMP (Amplifier), Driver IMS (Integrated Memory System) Module, Front Wireless Charger, Front Ventilated Seat Control Module, Heated Front/Rear Seat Control Module, ATM (Automatic Transmission) Shift Lever Indicator, Transmission Link Connector Data, Audio, Audio/ Video and Navigation Head Unit, Air Conditioning Switch, 360° CCTV Unit, Air Conditioning Control Module, DC/DC Converter (Audio/Amplifier (Amplifier)), Electrochromic Mirror
MODULE210A Cooling Fan Motor, Parking Anti-Collision System Module, Heated Front/Rear Seat Control Module, Heated Front Seat Control Module, Engine Compartment Junction Block (Left Handle Heated Glass/Right Handle Side Heater)
MDPS7.5A MDPS (Electric Power Steering) Unit (Column Type)
A/C17.5A A/C Control Module, A/C Switch, Engine Compartment Junction Block (Blower Relay)
MODULE410A Rear USB Charger, PCB Assembly (Socket Relay), Console USB Charger (Outside, Rear Left/Right Handlebar Side), Console USB Charger (Inside), AMP (Amplifier), IBU (Integrated Body Control Unit), DC-DC Converter (Audio/AMP (Amplifier)), Audio, Audio/Video and Navigation Head Unit, 360° Camera Surveillance System Unit, Parking Collision Avoidance System Unit
MODULE97.5A IBU (Integrated Body Control Unit)
CLUSTER10A Instrument cluster, head-up display
WASHER15A Multifunction switch
START7.5A B/Hazard Relay, IBU (Integrated Body Control Unit), ECM (Engine Control Module), Transmission Range Switch, Engine Compartment Junction Block (Start Relay)
IBU27.5A IBU (Integrated Body Control Unit)
A/BAG IND7.5A Instrument cluster, overhead console lamp
SPARE2Not used
A/C210A Air Conditioning Control Module

Check the purpose of the elements with your diagram located on the back of the block cover.

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