Table of Contents
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 take a detailed look at the fuse box diagrams for the 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 distribution boxes. The fuses responsible for the “Cigarette lighter” and “Fuel Pump” are highlighted in bold.
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 shows an example.
| Diagram | ||
|---|---|---|
Type 1 (2.5 T-GDi engine, block number 91955-L3461) |
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Type 2 (1.6 T-GDi engine, block number 91955-L3450) |
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| 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 |
| B+1 | ICU Junction Block (Fuse - P/SEAT, CHILD LOCK, MODULE1, S/HEATER (RR), SAFETY P/WINDOW) | 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 distribution box is located behind the protective cover on the left side of the instrument panel.
To access the distribution box, the protective cover must be lifted and removed.
General view.
| Diagram | ||
|---|---|---|
|
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| 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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