2016 - 2020 Kia Optima Fuse Box Diagram

2019 Kia Optima
2019 Kia Optima

Fuse Types


Fuse Types
Fuse Types

❈ Left side : Normal , Right side : Blown

A vehicle’s electrical system is protected from electrical overload damage by fuses.
This vehicle has 2 (or 3) fuse panels, one located in the driver’s side panel bolster, the other in the engine compartment near the battery.
If any of your vehicle’s lights, accessories, or controls do not work, check the appropriate circuit fuse. If a fuse has blown, the element inside the fuse will melt.
If the electrical system does not work, first check the driver’s side fuse panel.
If the replacement fuse blows, this indicates an electrical problem. Avoid using the system involved and immediately consult an authorized Kia dealer.
Three kinds of fuses are used: blade type for lower amperage rating, cartridge type, and multi fuse for higher amperage ratings.

WARNING - Fuse replacement
• Never replace a fuse with anything but another fuse of the same rating.
• A higher capacity fuse could cause damage and possibly a fire.
• Never install a wire or aluminum foil instead of the proper fuse - even as a temporary repair. It may cause extensive wiring damage and a possible fire.
• Do not arbitrarily modify or add-on electric wiring to the vehicle.
 
CAUTION
Do not use a screwdriver or any other metal object to remove fuses because it may cause a
short circuit and damage the system.
 
NOTICE
• When replacing a fuse, turn the ignition “OFF” and turn off switches of all electrical devices
then remove battery (-) terminal.
• The actual fuse/relay panel label may differ from equipped items. 

WARNING - Electrical Fire
Always ensure replacements fuses and relays are securely fastened when installed. Failure
to do so can result in a vehicle fire.

CAUTION
• When replacing a blown fuse or relay, make sure the new fuse or relay fits tightly into the clips. Failure to tightly install the fuse or relay may cause damage to the wiring and electric systems.
• Do not remove fuses, relays and terminals fastened with bolts or nuts.The fuses, relays
and terminals may not be fastened correctly which may cause vehicle damage.

CAUTION
• Do not input any other objects except fuses or relays into fuse/relay terminals such as a
screwdriver or wiring. It may cause contact failure and system malfunction.
• Do not plug in screwdrivers or aftermarket wiring into the terminal originally designed for
fuse and relays only. The electrical system and wiring of the vehicle interior may be damaged
or burned due to contact failure.
• If you directly connect the wire on the taillight or replace the bulb which is over the regulated
capacity to install trailers etc., the inner junction block can get burned.
 
CAUTION
Visually inspect the battery cap to ensure it is securely closed. If the battery cap is not securely closed, moisture may enter the system and damage the electrical components.

WARNING - Electrical wiring repairs
All electrical repairs should be performed by authorized Kia dealerships using approved Kia
parts. Using other wiring components, especially when retrofitting AVN or theft alarm system,
remote engine control, car phone or radio may cause vehicle damage and increase the risk of a vehicle fire

NOTICE - Remodeling Prohibited
Do not rewire your vehicle in any way as doing so may affect the performance of several safety features in your vehicle. Rewiring your vehicle may also void your warranty and
cause you to be responsible for any subsequent vehicle damage which may result.

✽ NOTICE - Window tinting precaution
Window tint (especially metallic film) might cause communication errors or poor radio reception, and malfunctioning automatic lighting system due to reflections from the mirror tint inside the vehicle. The solution used might also leak into the electronic components, causing
malfunctions or damage.
 

Inner panel fuse replacement



1. Turn the ignition switch and all other switches off. 
2. Open the fuse panel cover.
If the switch is located in the “OFF” position, a caution indicator will be displayed in the cluster.
To identify the location of a specific fuse, please refer to the inside of the fuse panel cover and the description list in this section.


3. Pull the suspected fuse straight out. Use the removal tool (Fuse Puller) provided on the engine compartment fuse panel cover.
4. Check the removed fuse; replace it if it is blown.
Spare fuses are provided in the engine compartment fuse panel.
5. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
 
If it fits loosely, consult an authorized Kia dealer.
If you do not have a spare, use a fuse of the same rating from a circuit you may not need for operating the vehicle, such as the power outlet fuse.
If the head lamp, turn signal lamp, stop signal lamp, fog lamp, DRL, tail lamp, HMSL do not work and the fuses are OK, check the fuse panel in the engine compartment. If a fuse is blown, it must be replaced.

✽ NOTICE
If the headlamp, fog lamp, turn signal lamp, or tail lamp malfunction even without any problem to the lamps, have the vehicle checked by an authorized Kia dealer for assistance.

Fuse Switch


Fuse Switch
Fuse Switch

Always set the fuse switch to the ON position before using the vehicle. If you move the switch to the OFF position, some items such as audio and digital clock must be reset and transmitter (or smart key) may not work properly. When the switch is Off, the caution indicator will be displayed on the instrument cluster.

CAUTION - Fuse Panel Covers
The contact points of the switches may wear out with excessive use. Please refrain from excessive use of the switches (except for long-term parking for over 1 month).
 
✽ NOTICE
• If the vehicle is going to be unused for over 1 month, set all switches to OFF to prevent the batteries from draining.


Engine compartment fuse replacement

 
Engine compartment fuse replacement
Engine compartment fuse replacement

1. Turn the ignition switch and all other switches off.
2. Remove the fuse panel cover by pressing the tab and pulling the cover up.
3. Check the removed fuse; replace it if it is blown. To remove or insert the fuse, use the fuse puller in the engine compartment fuse panel.
4. Push in a new fuse of the same rating, and make sure it fits tightly in the clips. If it fits loosely, consult an authorized Kia dealer.

CAUTION
Always securely install the fuse panel cover in the engine compartment to protect against
electrical failure which may occur from water contact. Listen for the audible clicking sound to ensure fuse panel cover is securely fastened.

Multi fuse

Multi fuse

Multi fuse

 ✽ NOTICE
Do not disassemble nor assemble the multi fuse when it is secured with nuts and bolts. Incorrect or partial assembly torque may cause a fire. Have the vehicle checked by an
authorized Kia dealer.

Main fuse

Main fuse
Main fuse

✽ NOTICE
Do not disassemble nor assemble the multi fuse when it is secured with nuts and bolts. Incorrect or partial assembly torque may cause a fire. Have the vehicle checked by an
authorized Kia dealer.
 
✽ NOTICE
The electronic system may not function correctly even when the engine compartment and internal fuse box’s individual fuses are not disconnected. In such case the cause of
the problem may be disconnection of the main fuse (BFT type), which is located inside the positive battery terminal (+) cap.
Since the main fuse is designed more intricately than other parts, have the vehicle checked by an authorized Kia dealer.

CAUTION
Visually inspect the battery cap to ensure it is securely closed. If the battery cap is not securely closed, moisture may enter the system and damage the electrical components.

Driver’s side fuse panel

 
Driver’s side fuse/ Relay panel Cover
Driver’s side fuse/ Relay panel Cover

Inside the fuse/relay panel covers, you can find the fuse/relay label describing fuse/relay name and capacity.

✽ NOTICE
Not all fuse panel descriptions in this manual may be applicable to your vehicle. It is accurate at the time of printing. When you inspect the fuse panel in your vehicle, refer to the fuse panel label on the inside of the fuse cover. This diagram will provide you with the specific   information for your vehicles.

Driver’s side fuse/ Relay Panel Diagram
Driver’s side fuse/ Relay Panel Diagram

Instrument panel (Driver’s side Fuse/ Relay panel)


Fuse Name .. Fuse rating .. Circuit Protected
MODULE 7 10A Around View Unit, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Rear Seat Warmer Control Module
MODULE 5 10A A/C Control Module, Electro Chromic Mirror, Crash Pad Switch, Head Lamp LH/RH, Auto Head Lamp Leveling Device Module, A/V & Navigation Head Unit, Fuel Lid & Trunk Open Switch, Shift Lever Indicator, Driver IMS Module, Driver IMS Module, Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module, Rear Seat Warmer Control Module
MODULE 6 10A BCM, Smart Key Control Module
A/CON 10A A/C Control Module, E/R Junction Block (Blower Relay)
START 10A [W/O Smart Key & IMMO.] ICM Relay Box (Burglar Alarm Relay) [With Smart Key / IMMO.] Transaxle Range Switch, PCM (G4KH/G4KJ)
A/BAG 15A SRS Control Module, Passenger Occupant Detection
MODULE 3 10A BCM, ATM Shift Lever, Stop Lamp Switch, DBL Unit, Keyboard, A/C Control Module
MODULE 4 10A Console Switch, Blind Spot Detection Radar LH/RH, Smart Cruise Control Unit, AEB Module, Lane Keeping Assist Module
INTERIOR LAMP 10A Trunk Room Lamp, Ignition Key Ill. & Door Warning Switch, Glove Box Lamp, Driver/Passenger Smart Key Outside Handle, Front Vanity Lamp Switch LH/RH, Overhead Console Lamp, Center Room Lamp, Center Personal Lamp, Rear Personal Lamp LH/RH, Driver/Passenger Scuff Lamp
MDPS 10A MDPS Unit (Column/Rack), Steering Angle Sensor
IG1 25A PCB Block (Fuse - TCU 2, ABS 3, ECU 3, VACUUM PUMP 2)
MODULE 9 10A Immobilizer Module, Smart Key Control Module
 
WASHER 15A Multifunction Switch (Wiper Low & Washer Switch)
MODULE 8 10A A/C Control Module, Driver/Passenger Door Module
CLUSTER 10A Instrument Cluster (IG1)
MULTI MEDIA 15A Audio, A/V & Navigation Head Unit, Keyboard
HEATED STEERING 15A BCM (Steering Wheel Heated)
MODULE 1 10A Console Switch, Key Solenoid, Driver/Passenger Door Module, BCM
DR LOCK 20A Door Lock Relay, Door Unlock Relay
SMART KEY 15A Smart Key Control Module
A/BAG IND 10A Instrument Cluster (Air Bag IND. Power)
TRUNK 10A Trunk Lid Relay, Fuel Filler & Trunk Open Switch, Trunk Lid Motor, ICM Relay Box (Fuel Filler Open Relay)
SUNROOF 2 20A Sunroof Control Unit (Roller)
MEMORY 1 10A Instrument Cluster, A/C Control Module, Data Link Connector, Wireless Charger, Driver IMS Module, Rain Sensor, ICM Relay Box (Outside Mirror Folding/Unfolding Mirror Relay), Security Indicator, Auto Light & Photo Sensor, Driver/Passenger Door Module, Electro Chromic Mirror
S/HEATER RR 25A Rear Seat Warmer Control Module
SUNROOF 1 20A Sunroof Control Unit (Glass)

S/HEATER FRT 25A Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module
MODULE 2 10A Audio, A/V & Navigation Head Unit, Keyboard, Around View Unit, AMP, Power Outside Mirror Switch, Smart Key Control Module, BCM, Wireless Charger, Rear USB Charger #1/#2, E/R Junction Block (Power Outlet Relay)
P/WINDOW RH 25A Power Window RH Relay, Rear Power Window Switch RH, Power Window Main Switch, Passenger Safety Power Window Module
P/SEAT PASS 25A Passenger Seat Manual Switch, Walk In Relay Module, Passenger Reclining Limit Switch
AMP 25A AMP (JBL)
BRAKE SWITCH 10A Stop Lamp Switch, Immobilizer Module, Smart Key Control Module, Start/Stop Button Switch
P/WINDOW LH 25A Power Window LH Relay, Rear Power Window Switch LH, Power Window Main Switch, Driver Safety Power Window Module
P/SEAT DRV 30A Driver Seat Manual Switch, Driver IMS Module
POWER OUTLET 20A Front Power Outlet #1, Front Cigarette Lighter & Power Outlet #2

Engine compartment fuse panel


Engine compartment Fuse Panel
Engine compartment Fuse Panel Cover

 
2017 - 2018 Model - Engine compartment fuse panel Diagram
2016 - 2018 Model - Engine compartment fuse panel Diagram
 
Engine compartment fuse panel Diagram - THETA 2.4L GDI THETA 2.0L T-GDI
2019 - 2020 Model - Engine compartment fuse panel Diagram - THETA 2.4L GDI THETA 2.0L T-GDI


Engine compartment fuse panel Diagram - GAMMA 1.6L T-GDI
2019 - Model Engine compartment fuse panel Diagram - GAMMA 1.6L T-GDI

Engine room compartment Fuse Table


Fuse Name Fuse rating Circuit Protected
 
MULTI FUSE
MDPS 1 80A MDPS Unit (Column)
COOLING FAN 2 60A [G4KH/G4FJ] Cooling Fan1 Relay, Cooling Fan2 Relay
COOLING FAN 1 50A [G4KJ] Cooling Fan1 Relay
B+ 3 50A Smart Junction Block (IPS 2 (IPS 5), IPS 3 (IPS 6), IPS 7, IPS 8)
REAR HEATED 50A Rear Heated Relay
DCT1 40A [G4FJ-DCT] TCM
BLOWER 40A Blower Relay
POWER OUTLET 1 40A Power Outlet Relay
IG2 30A [W/O Smart Key] Start Relay, Ignition Switch, [With Smart Key] Start Relay, PCB Block (IG2 Relay)
MDPS 2 100A MDPS Unit (Rack)
B+1 60A Smart Junction Block (Fuse - SUNROOF1, SUNROOF2, S/HEATER RR, P/SEAT DRV, P/SEAT PASS, P/WINDOW LH, P/WINDOW RH, TRUNK)
B+5 60A PCB Block (Engine Control Relay, Fuse - TCU1, ECU2, FUEL PUMP, HORN, WIPER1)
B+2 60A Smart Junction Block (IPS 1, IPS 4, Fuse - AMP, S/HEATER FRT)
ABS 1 40A ESC Module
IG1 40A [W/O Smart Key] Ignition Switch, [With Smart Key] PCB Block (IG1/ACC Relay)
DCT 2 40A [G4FJ-DCT] TCM
ABS 2 30A ESC Module, Multipurpose Check Connector

Fuse Name .. Fuse rating .. Circuit Protected
FUSE
B+4 40A Smart Junction Block (Leak Current Autocut Device Fuse - INTERIOR LAMP, MEMORY1, MULTI MEDIA, Fuse - DOOR LOCK, MODULE1, SMART KEY, BRAKE SWITCH)
E-CVVT 1 40A E-CVVT Relay
VACUUM PUMP 1 20A Vacuum Pump
DEICER 20A Deicer Relay
AMS 10A Battery Sensor
E-CVVT 2 20A PCM
A/CON 10A A/C Control Module
E-CVVT 3 20A PCM
HEATED MIRROR 10A A/C Control Module, Driver/Passenger Power Outside Mirror, ECM
WIPER 2 10A BCM, PCM/ECM
H/LAMP HI 20A Head Lamp HI Relay

FUEL PUMP 20A Fuel Pump Relay
ECU 1 20A PCM/ECM
SENSORS 2 10A E/R Junction Block (Fuel Pump Relay, Cooling Fan 1/2 Relay) / [G4KJ] Oil Control Valve (Exhaust), Purge Control Solenoid Valve, Variable Intake Solenoid Valve, Canister Close Valve /  [G4KH] Oil Control Valve (Exhaust), Purge Control Solenoid Valve, RCV Control Solenoid Valve, Canister Close Valve  / [G4FJ] Oil Control Valve #1/#2, Purge Control Solenoid Valve, RCV Control Solenoid Valve, Canister Close Valve
TCU 2 15A Transaxle Range Switch, TCM
ABS 3 10A ESC Module, Multipurpose Check Connector
POWER OUTLET 3 20A Rear Power Outlet
B/UP LAMP 10A PCM/TCM, Transaxle Range Switch, Audio, Electro Chromic Mirror, Rear Combination Lamp (IN) LH/RH
SENSOR 1 15A Oxygen Sensor (Up/Down)
IGN COIL 20A Ignition Coil #1/#2/#3/#4
ECU 2 10A PCM/ECM
TCU 1 10A PCM/TCM
VACUUM PUMP 2 10A Vacuum Pump, Vacuum Switch
ECU 3 10A PCM/ECM
POWER OUTLET 2 20A Front Power Outlet #1
HORN 20A Horn Relay, ICM Relay Box (Burglar Alarm Horn Relay)
WIPER 1 30A Wiper Power Relay

Engine compartment fuse panel (Battery terminal cover)


Engine compartment fuse panel (Battery terminal cover)
Engine compartment fuse panel (Battery terminal cover)
 
✽ NOTICE
Not all fuse panel descriptions in this manual may be applicable to your vehicle. It is accurate at the time of printing. When you inspect the fuse panel in your vehicle, refer to the fuse panel label.
Engine compartment fuse panel - Battery terminal Diagram
Engine compartment fuse panel - Battery terminal Diagram

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