Fuse Diagrams: 2016 Kia Optima Fuses and Relay Guide
The 2016 Kia Optima is equipped with an advanced electrical system that is protected from overloads by a variety of fuses, each of which plays a vital role. Maintaining the best possible performance out of your car requires that you understand the complexities of replacing fuses. The fuse box, which is positioned either under the dashboard or in the engine compartment, contains a variety of fuses, each of which is specifically designed to power windows, radios, lights, or other systems. A blown fuse may be the cause of a malfunctioning component, requiring a close examination and possibly replacement. Equipped with the accurate amperage, the procedure is locating the malfunctioning fuse, removing it using a fuse remover or pliers, and swapping it out for a similar fuse. This methodical technique guarantees the smooth.
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FUSES
❈ 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, and 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. Always replace a blown fuse with one of the same rating. 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 ratings, 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 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 the switches of all electrical devices then remove the battery (-) terminal.
- The actual fuse/relay panel label may differ from the equipped items.
WARNING – Electrical Fire
Always ensure replacement fuses and relays are securely fastened when installed. Failure to do so can result in a vehicle fire.
Inner panel fuse replacement
- Turn the ignition switch and all other switches off.
- Open the fuse panel cover. If the switch is located in the “OFF” position, a caution indicator will be displayed in the cluster.
- 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
- Pull the suspected fuse straight out. Use the removal tool provided on the engine compartment fuse panel cover.
- Check the removed fuse; replace it if it is blown. Spare fuses are provided in the engine compartment fuse panel.
- 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 headlamp, turn signal lamp, stop signal lamp, fog lamp, DRL, tail lamp, and 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 malfunctions even without any problem with the lamps, have the vehicle checked by an authorized Kia dealer for assistance.
CAUTION – Fuse Panel Covers
- Set all switches to ON before driving.
- If the vehicle is going to be unused for over 1 month, set all switches to OFF to prevent the batteries from draining.
- 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).
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 the audio and digital clock must be reset and the transmitter (or smart key) may not work properly. When the switch is Off, the caution indicator will be displayed on the instrument cluster. Always place the fuse switch in the ON position while driving the vehicle. If the switch is located in the “OFF” position, a caution indicator will be displayed in the cluster.
Engine compartment fuse replacement
- Turn the ignition switch and all other switches off.
- Remove the fuse panel cover by pressing the tab and pulling the cover-up. When the blade-type fuse is disconnected, remove it by using the clip designed for changing fuses located in the engine compartment fuse box. Upon removal, securely insert a reserve fuse of the same rating.
- 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.
- 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
After checking the fuse panel in the engine compartment, securely install the fuse panel cover through the audible clicking sound. If not, electrical failures may occur from water contact.
Multi fuse
If the multi fuse is blown, it must be removed as follows:
- Turn off the engine.
- Disconnect the negative battery cable.
- Remove the nuts shown in the picture above.
- Replace the fuse with a new one of the same rating.
- Reverse these steps to reinstall the 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
If the main fuse is blown, it must be removed as follows:
- Turn off the engine.
- Disconnect the negative battery cable.
- Remove the nuts shown in the picture above.
- Replace the fuse with a new one of the same rating.
- Reverse these steps to reinstall the main fuse.
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 the 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
Fuse/relay panel description
Driver’s side fuse panel
Inside the fuse/relay panel covers you can find the fuse/relay label describing the 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.
Instrument panel (Driver’s side fuse 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 |
| Fuse Name | Fuse rating | Circuit Protected |
| 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 room compartment fuse panel
| 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 | |
| Fuse Name | Fuse rating | Circuit Protected | |
|
FUSE |
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)
✽ 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.
How to Change the Fuses of the 2016 Kia Optima
Replacing fuses in the 2016 Kia Optima involves a straightforward process. Here is a step-by-step guide:
Materials Needed:
- New fuse (ensure it has the same amperage as the one you are replacing)
- Fuse puller or needle-nose pliers
Instructions:
-
Locate the Fuse Box:
- The fuse box in your Kia Optima is typically located in one of two places: under the dashboard on the driver’s side or in the engine compartment.
-
Determine the Faulty Fuse:
- Consult the fuse box diagram in your owner’s manual to identify the fuse that needs replacement. The diagram will indicate which fuse corresponds to specific electrical components.
-
Turn Off the Ignition:
- Ensure that the ignition is turned off before attempting to replace a fuse to prevent electrical hazards.
-
Use a Fuse Puller or Pliers:
- If your fuse box comes with a fuse puller, use it to grasp and pull out the faulty fuse. If you don’t have a fuse puller, you can use needle-nose pliers to carefully grip and remove the fuse.
-
Inspect the Fuse:
- Examine the removed fuse. If the metal strip inside is broken or the fuse appears discoloured, it is likely blown and needs replacement.
-
Insert the New Fuse:
- Take a new fuse with the same amperage rating and push it into the slot where the old fuse was. Ensure it is securely seated.
-
Secure the Fuse Box Cover:
- If you removed a cover from the fuse box to access the fuses, reattach it securely.
-
Test the Electrical Component:
- Turn on the ignition and test the electrical component associated with the fuse you replaced to ensure it is functioning correctly.
Tips:
- Always use a fuse with the same amperage rating as the one you are replacing. Using a fuse with a different rating can lead to electrical issues or damage.
- Exercise caution when handling fuses and electrical components to avoid injury or damage to your vehicle.
FAQs
Fuses protect electrical components from overloading, and if a specific system malfunctions, it’s crucial to check and replace the fuse if necessary.
The fuse box is typically located in the engine compartment or under the dashboard.
Look for a melted or broken wire inside the transparent window on top of the fuse. If the wire is damaged, the fuse is likely blown.
Yes, replacing a fuse is generally a straightforward process.
While there’s no strict order, it’s wise to start with the fuse corresponding to the malfunctioning system and work systematically.
The correct amperage is usually printed on the top of the fuse. It’s crucial to replace it with a fuse of the same amperage to avoid damaging the electrical system.
No, using a higher amperage fuse can lead to electrical system damage or even pose a fire hazard. Always use the correct amperage.
Some fuse boxes come with spare fuses.
Regularly inspect your fuses during routine maintenance checks. Replace any blown fuses immediately to ensure optimal performance.
The fuse box diagram illustrates the location and amperage of each fuse, helping you identify which one corresponds to the malfunctioning system.
Yes, the fuse box may be divided into sections, each corresponding to a specific system (e.g., lights, radio, power windows).
Yes, extreme temperatures can impact fuse performance. Store spare fuses in a cool, dry place to ensure their reliability.
If a fuse consistently blows, there may be an underlying issue. Consult your dealer or a mechanic to identify and fix the root cause.
While color coding can help identify fuses, always prioritize using the correct amperage fuse, regardless of its color.