Table of Contents
This material examines in detail the fuse diagrams of the Kia Optima / K5 (third generation; index DL3): 2019, 2020, 2021, 2022, 2023, 2024 model years.
The fuses marked “POWER OUTLET” and “MODULE4” in the engine compartment and passenger compartment unit are responsible for protecting the electrical circuits of the cigarette lighter sockets.
In the engine compartment
The fuse box is located on the right side of the engine compartment behind the protective cover. The placement of fuses in the block may differ depending on the engine installed in the vehicle.
Photo is an example of execution.
| 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/Outlet), Variable Oil Pump Solenoid Valve, Ventilation Control Solenoid Valve, RCV (Recirculation Valve Control) Control Solenoid Valve, Canister Close 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 pulled up and removed.
General form.
| 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 | Switch No. 1 on the front console, ignition key valve (solenoid), external handle of the driver and passenger door smart key | 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 Outside Rear View Mirrors, Rain Sensor, Instrument Cluster, A/C Control Module, A/C 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), Front Console No. 1/No. 2 Switch, Lane Keeping Assist Unit, IBU (Integrated Body Unit), Hazard Panel Switch, Collision Mitigation System Unit when parking | 10 |
| MODULE5 | Brake light switch | 10 |
| MODULE8 | AMP (Amplifier), Driver 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° CCTV unit, air conditioning control module, DC-DC converter (audio amplifier), electrochromic mirror | 10 |
| MODULE2 | 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) | 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 cluster, lamp lighting in the interior ceiling | 7.5 |
| SPARE2 | Spare | 10 |
| A/C2 | Air conditioning control module | 10 |
