Fuses and relays Kia Optima / K5 (DL3; 2019 - 2024)

The Optima sedan (also known as K5) is a business class car of the South Korean company Kia Motors, production of which began in 2000. In this article we will understand in detail fuse box diagrams Kia Optima / K5 (fifth generation; DL3 index) 2019, 2020, 2021, 2021, 2022, 2023, 2024 years of manufacture.  

Here you will find the locations and photos of the mounting blocks. Also, we will separately mark the fuses responsible for the cigarette lighter and the fuel pump.

In the engine compartment

The fuse box is located on the right side of the engine compartment behind the protective cover. The location of the fuses in the fuse box may vary depending on the engine installed in the vehicle.

The photo is an example of the execution.


Type 1 (2.5 T-GDi engine, block number 91955-L3461)

Type 2 (1.6 T-GDi engine, block number 91955-L3450)
Name Description Amps
ALT Main fuse (on battery) 200
IG2 Start relay, ignition switch relay 2 30
ABS1 ESC (Electronic Stability Control) Module 40
B+2 ICU Junction Block (Instrument Panel Module 1, Instrument Panel Module 3, Instrument Panel Module 4, Fuse AMP Amplifier, Integrated Body Control Unit IBU) 50
BLOWER Engine Compartment Junction Block (Blower Relay) 40/50
B+3 ICU Connection Block (Instrument Panel Module: #5 / #6 / #7 / #8 / #9 / #10 / #11) 50
COOLING FAN Cooling Fan Motor 80
MDPS / EPS MDPS/EPS (Electric Power Steering) Unit 80
CWD1 G1.6 T-GDi engine: CWD drive 30/40
E-CWT1 G2.5 T-GDi engine: Engine room distribution block (E-CWT relay) 40
IG1 Ignition switch relay, ACC relay 40
REAR HEATED Junction block in the engine compartment (rear heating relay) 50
EPB ESC (Electronic Stability Control) Module 60
B+5 PCB Unit (Engine Control Relay, A/C Fuse, WIPER1, TCU (Transmission Control Unit), Horn, ECU (Engine Control Unit)) 60
OIL PUMP1 G1.6 T-GDi engine: Electronic oil pump 60
OIL PUMP [Smartstream G 25 T-GDi] Electronic Oil Pump 60
POWER OUTLET1 PCB block (kia k5 cigarette lighter socket relay) 40
W/S HEATED GLASS RH W/S Heated glass relay on the right side 40
W/S HEATED GLASS LH W/S Heated glass relay on the left side 40
TCU5 G2.5 T-GDi engine: TCM (Transmission Control Module) 60
B+4 ICU Connection Block (Long Term Load Latch Relay, Fuse --MODULE3, AIR BAG2, SUNROOF1, SUNROOF2, S/HEATER (FRT), TRUNK, BRAKE SWITCH, DOOR LOCK) 60
ECU5 G1.6 T-GDi engine: ECM (engine control module) 10
AMS Battery sensor 10
VACUUM PUMP1 G2.5 T-GDi engine: vacuum pump relay 20
4WD G1.6 T-GDi engine: Audio/video ECU, 4WD (all-wheel drive system), ECU (engine control unit) 20
FUEL PUMP1 Distribution block in the engine compartment (kia k5 fuel pump relay) 20
VACUUM PUMP2 G2.5 T-GDi engine: ESC module (Electronic Stability Control) 10
E-CWT3 G2.5 T-GDi engine: ECM (engine control module) 20
HEATED MIRROR Air conditioner switch 10
E-CWT4 G2.5 T-GDi engine: ECM (engine control module) 20
WIPER1 Wiper relay 30
WIPER2 IBU (Integrated Body Control Unit), ECM (Engine Control Module) 10
TCU1 TCM (Transmission Control Module) 20
ECU2 ECM (Engine Control Module) 15
ECU1 ECM (Engine Control Module) 20
ECU4 ECM (Engine Control Module) 15
TCU2 TCM (Transmission Control Module), Transmission Range Switch 15
A/C1 Engine Compartment Junction Block (A/C Relay) 10
INJECTOR G2.5 T-GDi engine: Injector 1 / 2 / 3 / 4 15
SENSOR1 Oxygen sensor (up/down) 15
OIL PUMP2 G1.6 T-GDi engine: Electronic oil pump 10
CWD2 G1.6 T-GDi engine: CWD drive 10
POWER OUTLET2 Front cigarette lighter socket on left side 20
POWER OUTLET3 Kia K5 Front USB charger 20
HORN Horn relay 20
SENSOR2 Oil control valve (inlet/exhaust), oil pump solenoid valve, vent control solenoid valve, recirculation control valve (RCV) solenoid valve, canister closure valve, A/C relay 10
FUEL PUMP2 Engine compartment junction block (fuel pump relay) 10
ECU3 ECM (Engine Control Module) 10
ABS3 ESC (Electronic Stability Control) Module 10
IGN COIL Ignition coil 1 / 2 / 3 / 4 20
CRUISE Forward radar 10

In the passenger compartment

The mounting block is located behind the protective cover on the left side of the instrument panel.

To access the unit, the protective cover must be lifted and removed.

General form.

Name Description Amps
S/HEATER (FRT) Front seat heating and ventilation control module 25
TRUNK Trunk lid relay 10
DOOR LOCK Door lock relay, door unlock relay 20
MODULE 1 Front console switch #1, ignition key valve (solenoid), driver and passenger door outer smart key handle 7.5
CHILD LOCK Rear door child lock/unlock relay 15
MODULE3 Hazard warning switch, front interior lamp, driver's door module, front door lamps 10
S/HEATER (RR) Rear seat heating control module 25
P/SEAT (PASS) Passenger Seat Manual Switch 30
MODULE6 Sport Mode Switch, Driver Door Module 10
SAFETY P/WINDOW (RH) Passenger power window switch, rear right power window switch 30
P/SEAT (DRV) Driver Seat Manual Switch, Driver IMS (Integrated Memory System) Module 30
IBU1 Ignition switch, IBU (Integrated Body Unit) 15
IAU Not involved 10
AMP DC-DC converter, AMP amplifier 25
SAFETY P/WINDOW (LH) Driver's door window, rear left power window 30
SPARE1 Not used 15
BRAKE SWITCH IBU (Integrated Body Control Unit), Brake Light Switch 10
SUNROOF2 Sunroof Controller (Louver Motor), Data Link Connector 20
AIR BAG2 SRS (Supplemental Restraint System) control module 10
AIR BAG1 SRS (Supplemental Restraint System) control module 15
MEMORY Head-up Display, Driver IMS (Integrated Memory System), Power exterior mirrors, Rain sensor, Instrument panel, Air conditioning control module, Air conditioning switch 10
MULTIMEDIA DC/DC converter (audio), audio, audio/video and navigation head unit 15
SUNROOF1 Sunroof Controller (window motor) 20
MODULE7 Audio/Video 4WD (all-wheel drive), ECU (engine control unit), #1/#2 switch on front console, lane assist unit, IBU (integrated body unit), dashboard switch, parking collision mitigation system unit 10
MODULE5 Brake light switch 10
MODULE8 AMP (amplifier), driver's IMS (Integrated Memory System) module, front wireless charger, front ventilated seat control module, heated front and rear seat control module, ATM (automatic transmission) shift lever indicator, Data Link connector, audio, audio/video and navigation head unit, air conditioning switch, 360° video surveillance unit, air conditioning control module, DC-DC converter (audio amplifier), electrochromic mirror 10
MODULE2 Cooling fan motor, parking collision avoidance system module, heated front/rear seat control module, heated front seat control module, engine compartment distribution unit (left handle heated window/right handle side heater) 10
MDPS MDPS (Electric Power Steering) Unit (Column Type) 7.5
A/C1 A/C Control Module, A/C Switch, Engine Compartment Junction Block (Blower Relay) 7.5
MODULE4 Kia K5 Rear USB Charger, Cigarette Lighter Socket Relay, Console USB Charger (Rear Left and Right Handlebar Side), Console USB Charger (Interior), AMP (Amplifier), IBU (Integrated Body Control Unit ) , DC-DC Converter (Audio Amplifier), Audio, Audio/Video and Navigation Head Unit, 360° Camera Surveillance System Unit, Parking Collision Avoidance System Unit 10
MODULE9 IBU (Integrated Body Control Unit) 7.5
CLUSTER Instrument cluster, head-up display 10
WASHER Multifunction switch 15
START B / Hazard Relay, IBU (Integrated Body Control Unit), ECM (Engine Control Module), Transmission Range Switch, Engine Compartment Junction Block (Start Relay) 7.5
POWER OUTLET Not used 20
IBU2 IBU (Integrated Body Control Unit) 7.5
A/BAG IND Instrument panel, headlamp illumination in the passenger compartment 7.5
SPARE2 Spare 10
A/C2 Air conditioning control module 10
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