The Kia Optima (also known as the K5 or Magentis) is a mid-size car produced by South Korean automaker Kia Motors, with production commencing in 2000. This article details the fuse box diagrams and power distribution layouts for second-generation Kia Optima (MG chassis) models manufactured from 2005 through 2010.
Here you will find component location diagrams and photographs of the power distribution centers. Fuses for the “Cigarette Lighter” and “Fuel Pump” are highlighted in bold.
Engine Compartment
The main fuse and relay box is located adjacent to the battery on the left side of the engine compartment.
Representative configuration shown below.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Rating (A) |
| I/P B+ 2 | Instrument panel B+ feed 2 | 50 |
| ABS 2 | Anti-lock Braking System (ABS) | 40 |
| DRL | Daytime Running Lights | 15 |
| HORN | Horn | 15 |
| H / LP LOW | Low-beam headlights | 15 |
| F / PUMP | Kia Optima Gen 2 fuel pump fuse | 20 |
| H/LP HI | High-beam headlights | 15 |
| ECU | Engine Control Module (ECM/ECU) | 10 |
| ABS 1 | Anti-lock Braking System (ABS) | 40 |
| ALT | Alternator | 125 / 150 |
| SPARE | Spare | 10 |
| SPARE | Spare | 15 |
| SPARE | Spare | 20 |
| FRTFOG | Front fog lamps | 15 |
| ECU RELAY | Engine Control Module (ECM) relay | 30 |
| POWER AMP | Audio power amplifier | 20 |
| SPARE | Spare | 15 |
| SPARE | Spare | 20 |
| P/OUTLET | 12V auxiliary power outlet | 25 |
| RAD FAN | Radiator cooling fan | 30 / 40 |
| PCU | Powertrain Control Module (PCM) sensors, TCU | 10 |
| ABS | Anti-lock Braking System (ABS) | 10 |
| S / WARMER | Heated seats | 25 |
| ATM | Automatic transmission control module | 20 |
| S / ROOF | Sunroof | 20 |
| SPARE | Spare | 20 |
| BACK UP | Backup / Reverse lamps | 10 |
| RR HTD | Rear window defogger | 40 |
| IGN 1 | Ignition circuit 1 | 30 |
| B+ | Instrument panel B+ feed | 30 |
| TAIL | Tail lamps | 20 |
| A / CON | Air conditioning system | 10 |
| ECU-1 | Engine Control Module (ECM) 1 | 20 |
| IGN COIL | Ignition coils | 20 |
| SNSR 3 | Engine sensors 3 | 10 |
| BLOWER | HVAC blower motor | 40 |
| IGN 2 | Ignition circuit 2 | 30 |
| SNSR 2 | Engine sensors 2 | 15 |
| HORN RELAY | Horn relay | |
| HDLP_LOW RELAY | Low-beam headlight relay | |
| RAD FAN_HI RELAY | Radiator cooling fan relay (High speed) | |
| RAD FAN_LOW RELAY | Radiator cooling fan relay (Low speed) | |
| F / PUMP RELAY | Fuel pump relay | |
| WIPER RELAY | Windshield wiper relay | |
| MAIN RELAY | Main system relay | |
| START RELAY | Starter relay | |
| ATM CONT RELAY | Automatic transmission control relay | |
| A / CON RELAY | Air conditioning relay | |
An auxiliary power distribution box is mounted at the front of the engine compartment on diesel-powered Optima models.
Circuit Legend:
- GLOW PLUG FUSIBLE LINK 80A;
- PTC HEATER #1 FUSIBLE LINK 50A;
- PTC HEATER #2 FUSIBLE LINK 50A;
- PTC HEATER #3 FUSIBLE LINK 50A;
- FUEL FILTER HEATER FUSIBLE LINK 40A;
- GLOW PLUG RELAY;
- PTC HEATER RELAY #1;
- PTC HEATER RELAY #2;
- PTC HEATER RELAY #3;
- FUEL FILTER HEATER RELAY
Passenger Compartment
Located on the driver’s side end of the instrument panel behind the access cover.
Overview of the interior fuse panel.
Access panel removal example.
| Diagram | ||
|---|---|---|
|
||
| No. | Circuit Protected | Rating (A) |
| H/LP | Headlamps | 10 |
| A / CON SW | Air conditioning switch | 10 |
| START | Starter signal circuit | 10 |
| P / SEAT RH | Power seat (right side) | 30 |
| P / WDW RH | Power window (right side) | 25 |
| WIPER | Front windshield wipers | 25 |
| MIRR HTD | Heated exterior mirrors | 10 |
| RR FOG | Rear fog lamps | 15 |
| P / SEAT LH | Power seat (left side) | 30 |
| P / WDW LH | Power window (left side) | 25 |
| SPARE | Spare | 10 |
| MODULE-2 | Instrument cluster, HVAC blower relay, sunroof module, wiper relay, rain sensor, rheostat, seat heater relay | 10 |
| W/DEICER | Windshield wiper de-icer | 15 |
| TAIL RH | Tail lamp (right side) | 10 |
| TAIL LH | Tail lamp (left side) | 10 |
| EPS | Electric Power Steering (EPS) | 10 |
| A/CON | Air conditioning system | 10 |
| SAFETY PWR | Safety power window module | 20 |
| A / BAG IND | Airbag warning indicator | 10 |
| A / BAG | Supplemental Restraint System (SRS) airbag | 15 |
| DR LOCK | Central door locking system | 25 |
| SPARE | Spare | 10 |
| CLUSTER | Instrument cluster | 10 |
| MODULE-1 | Back Warning System (BWS) buzzer, ESP switch | 10 |
| HAZARD | Hazard warning lamps | 15 |
| STOP LP | Stop lamps | 15 |
| SPARE | Spare | 15 |
| TELL TALE | Instrument cluster telltale indicators | 15 |
| T / LID OPEN | Trunk lid release actuator | 15 |
| ADJ PEDAL | Power adjustable pedal relay | 10 |
| SPARE | Spare | 15 |
| T/SIG | Turn signal indicators | 10 |
| TPMS | Tire Pressure Monitoring System (TPMS) | 10 |
| BLOWER MTR | HVAC blower motor | 10 |
| MEMORY | Memory retention (ETACS, A/C control module, digital clock, cabin lighting) | 15 |
| AUDIO | Audio system | 15 |
| C/LIGHTER | Kia Optima Gen 2 cigarette lighter fuse | 15 |
| D/CLOCK | Digital clock | 10 |